US20100218930A1 - System and method for constructing heat exchanger - Google Patents
System and method for constructing heat exchanger Download PDFInfo
- Publication number
- US20100218930A1 US20100218930A1 US12/716,021 US71602110A US2010218930A1 US 20100218930 A1 US20100218930 A1 US 20100218930A1 US 71602110 A US71602110 A US 71602110A US 2010218930 A1 US2010218930 A1 US 2010218930A1
- Authority
- US
- United States
- Prior art keywords
- heat exchanger
- working fluid
- flow
- fins
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
- B21D53/04—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of sheet metal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D17/00—Regenerative heat-exchange apparatus in which a stationary intermediate heat-transfer medium or body is contacted successively by each heat-exchange medium, e.g. using granular particles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
- F28F3/048—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of ribs integral with the element or local variations in thickness of the element, e.g. grooves, microchannels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
- F28F9/0221—Header boxes or end plates formed by stacked elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2215/00—Fins
- F28F2215/06—Hollow fins; fins with internal circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2260/00—Heat exchangers or heat exchange elements having special size, e.g. microstructures
- F28F2260/02—Heat exchangers or heat exchange elements having special size, e.g. microstructures having microchannels
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4935—Heat exchanger or boiler making
Definitions
- the present invention generally relates to various types and/or structures of heat exchangers and to methods of making and/or using such heat exchangers.
- the present invention relates to a system and method for constructing a microchannel gas-to-working fluid heat exchanger.
- a power generation cycle that employs a heat exchanger as disclosed and claimed herein as a regenerative heat exchanger, a waste heat exchanger and/or a condenser.
- the present invention generally relates to various types and/or structures of heat exchangers and to methods of making and/or using such heat exchangers.
- the present invention relates to a system and method for constructing a microchannel gas-to-working fluid heat exchanger.
- a power generation cycle that employs a heat exchanger as disclosed and claimed herein as a regenerative heat exchanger, a waste heat exchanger and/or a condenser.
- the present invention relates to a thermal management system as shown and described herein, wherein the thermal management system is based on, includes, or is a heat exchanger.
- the present invention relates to a method for constructing and/or producing a thermal management system as shown and described herein, wherein the thermal management system is based on, includes, or is a heat exchanger.
- the present invention relates to a heat recovery system that utilizes at least one regenerator based on microchannels, mesochannels, and/or minichannels.
- the present invention relates to a heat recovery system that utilizes at least one regenerator, wherein the at least one regenerator is based on one or more printed circuit heat exchange (PCHE) panels.
- PCHE printed circuit heat exchange
- the present invention relates to a gas-to-working fluid heat exchanger comprising: (a) a plurality of fins designed to contain at least one working fluid, wherein each of the plurality of fins contain therein one or more microchannels, mesochannels, or minichannels designed to permit the movement of the at least one working fluid through the one or more microchannels, mesochannels, or minichannels; (b) the plurality of fins being arranged in a horizontally and vertically spaced array or stages with an “offset strip” geometry so that heat transfer on the gas side of the heat exchanger is enhanced by frequent break-up of the fluid boundary layer, creating a turbulent boundary layer at the upper and lower heat transfer surfaces downstream of and/or adjacent to the microchannel fins; and (c) a plurality of cross-flow and/or counter-flow working fluid paths designed to permit the progression of working fluid flow through adjacent sets and/or stages of fins in the heater core in order to create a counter-flow to the flow of the gas through the heat
- FIG. 1 is an illustration of a microchannel gas/working fluid heat exchanger in accordance with one embodiment of the present invention
- FIG. 2 is an illustration of one production method for a microchannel gas/working fluid heat exchanger in accordance with one embodiment of the present invention.
- FIG. 3 is an illustration of one use for a heat exchanger formed in accordance with any one of the embodiments of the present invention.
- the present invention generally relates to various types and/or structures of heat exchangers and to methods of making and/or using such heat exchangers.
- the present invention relates to a system and method for constructing a microchannel gas-to-working fluid heat exchanger.
- a power generation cycle that employs a heat exchanger that serves as a regenerative heat exchanger.
- microchannels As used herein, the terms “microchannels,” “mesochannels,” and/or “minichannels,” although not identical in meaning and scope, are utilized interchangeably. Additionally, the microchannels, mesochannels, and/or minichannels of the present invention are not limited to any one particular size, width and/or length. Any suitable size, width or length can be utilized depending upon a variety of factors including, but not limited to, microchannels, mesochannels, and/or minichannels having variable sizes and/or lengths. Furthermore, any orientation of the microchannels, mesochannels, and/or minichannels can be utilized in conjunction with the various embodiments of the present invention.
- the present invention relates to an improved heat exchanger that utilizes microchannel technology.
- an improved heat exchanger is disclosed for transferring heat from an environment to a working fluid, or from the working fluid to the environment (see, e.g., FIG. 1 ).
- the working fluid of this embodiment includes, but is not limited to, a gas and/or supercritical gas or fluid.
- the gas of the present invention includes, but is not limited to, ambient air, hot air, cold air, carbon dioxide, nitrogen, helium, combustion gases or waste heat exhaust.
- the supercritical gas or fluid is formed from, or is, carbon dioxide, helium, nitrogen, air, etc.
- the present invention relates to a gas-to-working fluid heat exchanger featuring: (a) direct flow of the working fluid through strip fins containing a plurality of microchannels, mesochannels, minichannels or similar means; (b) a plurality of strip fins arranged in a horizontally and vertically spaced array or stages with an “offset strip” geometry so that heat transfer on the gas side of the heat exchanger is enhanced by frequent break-up of the fluid boundary layer, creating a turbulent boundary layer at the upper and lower heat transfer surfaces downstream of and/or adjacent to the microchannel fins; and/or (c) a serial cross-flow and/or counter-flow geometry for the working fluid so that, although the gas flows over each fin in cross-flow to optimize gas side heat transfer, the progression of working fluid flow through adjacent stages of strip fins in the heater core simultaneously creates a counter-flow to the flow of the gas through the heat exchanger resulting in an overall heat exchanger core effectiveness that is more effective than either a conventional counter flow or cross-flow heat
- the disclosed invention can be utilized to heat or cool a working fluid flowing through the strip fins of the heat exchanger, depending upon the temperature of the gas flowing over the strip fins.
- the heat exchanger of the present invention can be used to remove waste heat from a hot gas stream and transfer the heat into a working fluid.
- the heat exchanger of the present invention can be used to remove heat from a working fluid by passing a colder gas over the strip fins.
- An additional embodiment of the present invention is designed to remove heat from a working fluid and may incorporate a motor-driven fan local to the heat exchanger to create a standalone fan-cooled condenser with optimized heat exchanger effectiveness and pressure drop of the gas and/or working fluids as it flows through the heat exchanger.
- the present invention is a heat exchanger that comprises a plurality of microchannel fins and header blocks so that the fins interlock with the header blocks and the blocks can be stacked to build a heat exchanger core of any number of fins.
- One embodiment of the present invention utilizes microchannel fins of varying widths, varying lengths, varying horizontal spacing, varying vertical spacing, varying fins per stage, or varying number of fin stages to optimize heat exchanger effectiveness for a given set of gas and working fluid combinations.
- the present invention relates to a heat exchanger that comprises multiple heater cores that utilizes multiple heat exchanger cores, as described above, that utilize microchannels of varying widths, varying lengths, varying horizontal spacing, varying vertical spacing, varying channels per stage and/or unit of area, varying channel orientation, or varying number of channel stages to optimize heat exchanger effectiveness for a given set of gas and working fluid combinations.
- the present invention yields a multiple core heat exchanger that possesses improved heat exchanger effectiveness compared to conventional heat exchangers.
- heater core number and sizing may be varied to scale up or scale down the overall heat exchanger size and heat transfer capacity.
- the geometric shape of the fins in the present invention is not limited to any one specific geometrical shape. Instead, any suitable geometric fin shape can be utilized in conjunction with the present invention. Such shapes include, but are not limited to, circular, rectangular, square, polygonal, or elongated in external cross-section shape.
- the plurality of microchannels, mesochannels, and/or minichannels within the strip fins can have a cross-sectional shape that is circular, rectangular, square, polygonal, or elongated in shape.
- the present invention relates to a system that utilizes a combination of the above disclosed features to accomplish the goal of creating an improved heat exchanger.
- additional embodiments can include the specific selection and combination of the above mentioned embodiments to optimize heat exchanger effectiveness and pressure drop of the gas and/or working fluids as it flows through the heat exchanger.
- the present invention is comprised of header blocks so that the fins interlock with the header blocks and the blocks can be stacked to build a heat exchanger core of any number of fins.
- the header blocks contain a plurality of openings that act as inlet and outlet manifolds for transferring the working fluid to the flow passages inside the strip fins.
- the header blocks route the working fluid through the strip fins in a serial and parallel fashion to enable the working fluid to counter flow and cross flow to the gas flowing over the strip fins to optimize heat exchanger effectiveness and pressure drop.
- Each strip fin includes a plurality of openings at either end of the strip fin that connect the microchannels to the header blocks.
- an exemplary process for manufacturing a heat exchanger in accordance with the present invention comprises assembling the fins strips and header blocks together using diffusion bonding, brazing, welding, structural adhesive bonding, or similar joining methods.
- another manufacturing method comprises the fabrication of strip fins from a sheet material stock that can have the microchannels formed into one or both faces of the sheet via chemical etching, laser machining, roll-forming, stamping or similar forming methods.
- the formed sheet can be joined to a simple flat cover sheet or another formed sheet to enclose the microchannels using diffusion bonding, brazing, welding, structural adhesive bonding, or similar joining methods.
- a manufacturing method in accordance with the present invention comprises strip fins fabricated from extruded material with an appropriate microchannel geometry formed directly and enclosed into the fin during extrusion.
- such a method comprises header blocks that are fabricated from sheet material stock with manifold features formed into the sheet using chemical etching, laser machining, roll-forming, stamping or similar forming methods.
- FIG. 1 is an illustration of a heat exchange formed in accordance with one embodiment of the present invention
- FIG. 2 is an illustration of one method of forming a heat exchange of FIG. 1 .
- heat exchangers of the present invention can be used for various applications including, but not limited to, a regenerator in a system where waste heat is recaptured and “reused.”
- a regenerator in a system where waste heat is recaptured and “reused.”
- FIG. 1 One example of such an embodiment is disclosed in FIG. 1 .
- the working fluid of this embodiment includes, but is not limited to, an inert gas such as carbon dioxide, nitrogen, helium, air, etc. that is in either gas form, or in a supercritical fluid form.
- an inert gas such as carbon dioxide, nitrogen, helium, air, etc.
- a supercritical fluid, or supercritical gas, formed from carbon dioxide is utilized as the working fluid.
- a heat exchanger in accordance with the present invention can be formed with one or more cores having one or more printed circuit heat exchange (PCHE) panels.
- PCHE printed circuit heat exchange
- Such panels are known in the art, and are described in U.S. Pat. Nos. 6,921,518; 7,022,294; and 7,033,553, all of which are incorporated herein by reference, in their entireties, for their teachings related to printed circuit heat exchange (PCHE) panels.
- PCHE printed circuit heat exchange
- Other suitable heat exchangers for use as a regenerator in the system of FIG. 3 are disclosed in United States Published Patent Application No. 2006/0254759, the disclosure of which is incorporated herein in its entirety.
- the orientation and/or geometry of the cores is, in one instance, selected to maximize the thermal transfer between the working fluid (such fluids being those detailed above) at temperature 1 and the same, or a different, working at temperature 2 .
- the working fluid such fluids being those detailed above
- either temperature 1 or temperature 2 could be greater than the other remaining temperature.
- the difference between two temperatures of the present invention is at least one degree Celsius.
- the pressure used in the regenerators of this embodiment is in the range of about 500 to 7500 psi, inclusive.
- a power generation system 100 is illustrated.
- system 100 of FIG. 3 comprises a pump 102 , a regenerator 104 , a generator 106 , an expander 108 , and a condenser 110 .
- All of the elements in system 100 are connected via a suitable transfer means that carries a working fluid.
- the nature of the working fluid is as described above.
- the transfer means include, but are not limited to, piping, conduit, tubes, etc.
- the transfer means is a piping 112 that is capable of carrying a pressurized working fluid. In one instance, the pressure in piping 112 falls within the range of about 400 to about 3,500 psi, inclusive.
- the pressure at P 1 is in the range of about 400 to about 1,300 psi and the pressure at P 2 is in the range of about 1,700 to about 3,500 psi. It would be apparent to those of skill in the art, that a pressure differential must exist through piping 112 in order to drive system 100 .
- the present invention relates to a gas-to-working fluid heat exchanger comprising: (a) a plurality of fins designed to contain at least one working fluid, wherein each of the plurality of fins contain therein one or more microchannels, mesochannels, or minichannels designed to permit the movement of the at least one working fluid through the one or more microchannels, mesochannels, or minichannels; (b) the plurality of fins being arranged in a horizontally and vertically spaced array or stages with an “offset strip” geometry so that heat transfer on the gas side of the heat exchanger is enhanced by frequent break-up of the fluid boundary layer, creating a turbulent boundary layer at the upper and lower heat transfer surfaces downstream of and/or adjacent to the microchannel fins; and (c) a plurality of cross-flow and/or counter-flow working fluid paths designed to permit the progression of working fluid flow through adjacent sets and/or stages of fins in the heater core in order to create a counter-flow to the flow of the gas through the heat exchanger
- the heat exchanger of the present invention can be utilized in one or more locations in the waste heat engine embodiments disclosed in U.S. patent application Ser. No. 12/631,379, filed Dec. 4, 2009, the entirety of which is hereby incorporated by reference herein.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
- This application is related to, and claims priority from, previously filed U.S. Provisional Patent Application No. 61/209,055 entitled “System and Method for Constructing Heat Exchanger,” filed Mar. 2, 2009, the entirety of which is hereby incorporated by reference herein.
- The present invention generally relates to various types and/or structures of heat exchangers and to methods of making and/or using such heat exchangers. In one embodiment, the present invention relates to a system and method for constructing a microchannel gas-to-working fluid heat exchanger. In another embodiment, there is disclosed a power generation cycle that employs a heat exchanger as disclosed and claimed herein as a regenerative heat exchanger, a waste heat exchanger and/or a condenser.
- Current gas/working fluid heat exchangers are similar to automobile radiators and are based on finned tubes. The tubes may be circular or elongated. Heat transfer between the gas and fluid (air, combustion gas, waste heat, etc) is by conduction through metal fins attached to the tubes. Although the current state of the art yields a fairly effective heat transfer circuit, recent advances in microchannel technology offer potential significant improvement in heat exchanger size and effectiveness through virtually eliminating the fin conduction path by flowing the working fluid through the fins themselves.
- Given the above, there is a need in the art for an improved thermal management system, such as an improved heat exchanger as disclosed and claimed herein, to address various thermal management issues present in various applications in which heat exchangers are used, including but not limited to, energy recapture systems.
- The present invention generally relates to various types and/or structures of heat exchangers and to methods of making and/or using such heat exchangers. In one embodiment, the present invention relates to a system and method for constructing a microchannel gas-to-working fluid heat exchanger. In another embodiment, there is disclosed a power generation cycle that employs a heat exchanger as disclosed and claimed herein as a regenerative heat exchanger, a waste heat exchanger and/or a condenser.
- In one embodiment, the present invention relates to a thermal management system as shown and described herein, wherein the thermal management system is based on, includes, or is a heat exchanger.
- In another embodiment, the present invention relates to a method for constructing and/or producing a thermal management system as shown and described herein, wherein the thermal management system is based on, includes, or is a heat exchanger.
- In still yet another embodiment, the present invention relates to a heat recovery system that utilizes at least one regenerator based on microchannels, mesochannels, and/or minichannels.
- In still yet another embodiment, the present invention relates to a heat recovery system that utilizes at least one regenerator, wherein the at least one regenerator is based on one or more printed circuit heat exchange (PCHE) panels.
- In still yet another embodiment, the present invention relates to a gas-to-working fluid heat exchanger comprising: (a) a plurality of fins designed to contain at least one working fluid, wherein each of the plurality of fins contain therein one or more microchannels, mesochannels, or minichannels designed to permit the movement of the at least one working fluid through the one or more microchannels, mesochannels, or minichannels; (b) the plurality of fins being arranged in a horizontally and vertically spaced array or stages with an “offset strip” geometry so that heat transfer on the gas side of the heat exchanger is enhanced by frequent break-up of the fluid boundary layer, creating a turbulent boundary layer at the upper and lower heat transfer surfaces downstream of and/or adjacent to the microchannel fins; and (c) a plurality of cross-flow and/or counter-flow working fluid paths designed to permit the progression of working fluid flow through adjacent sets and/or stages of fins in the heater core in order to create a counter-flow to the flow of the gas through the heat exchanger thereby resulting in a heat exchanger having a core effectiveness that is more effective than either a conventional counter-flow or cross-flow heat exchanger geometry.
-
FIG. 1 is an illustration of a microchannel gas/working fluid heat exchanger in accordance with one embodiment of the present invention; -
FIG. 2 is an illustration of one production method for a microchannel gas/working fluid heat exchanger in accordance with one embodiment of the present invention; and, -
FIG. 3 is an illustration of one use for a heat exchanger formed in accordance with any one of the embodiments of the present invention. - The present invention generally relates to various types and/or structures of heat exchangers and to methods of making and/or using such heat exchangers. In one embodiment, the present invention relates to a system and method for constructing a microchannel gas-to-working fluid heat exchanger. In another embodiment, there is disclosed a power generation cycle that employs a heat exchanger that serves as a regenerative heat exchanger.
- As used herein, the terms “microchannels,” “mesochannels,” and/or “minichannels,” although not identical in meaning and scope, are utilized interchangeably. Additionally, the microchannels, mesochannels, and/or minichannels of the present invention are not limited to any one particular size, width and/or length. Any suitable size, width or length can be utilized depending upon a variety of factors including, but not limited to, microchannels, mesochannels, and/or minichannels having variable sizes and/or lengths. Furthermore, any orientation of the microchannels, mesochannels, and/or minichannels can be utilized in conjunction with the various embodiments of the present invention.
- As is discussed above, current gas/working fluid heat exchangers are similar to automobile radiators and are based on finned tubes. The tubes may be circular or elongated. Heat transfer from the gas (air, combustion gas, waste heat, etc) is by conduction through metal fins attached to the tubes. Although the current state of the art yields a fairly effective heat transfer circuit, recent advances in microchannel technology offer potential significant improvement in heat exchanger size and effectiveness through virtually eliminating the fin conduction path by flowing the working fluid through the fins themselves.
- Thus, in one embodiment, the present invention relates to an improved heat exchanger that utilizes microchannel technology. In this embodiment, an improved heat exchanger is disclosed for transferring heat from an environment to a working fluid, or from the working fluid to the environment (see, e.g.,
FIG. 1 ). In one instance, the working fluid of this embodiment includes, but is not limited to, a gas and/or supercritical gas or fluid. In one instance, the gas of the present invention includes, but is not limited to, ambient air, hot air, cold air, carbon dioxide, nitrogen, helium, combustion gases or waste heat exhaust. In another instance, the supercritical gas or fluid is formed from, or is, carbon dioxide, helium, nitrogen, air, etc. Although the current state of the art yields a fairly effective heat transfer circuit, recent advances in microchannel technology offer potential significant improvements in heat exchanger size and weight reduction and increased effectiveness through virtually eliminating the fin conduction path by flowing the working fluid through the fins themselves. - Thus, in this embodiment, the present invention relates to a gas-to-working fluid heat exchanger featuring: (a) direct flow of the working fluid through strip fins containing a plurality of microchannels, mesochannels, minichannels or similar means; (b) a plurality of strip fins arranged in a horizontally and vertically spaced array or stages with an “offset strip” geometry so that heat transfer on the gas side of the heat exchanger is enhanced by frequent break-up of the fluid boundary layer, creating a turbulent boundary layer at the upper and lower heat transfer surfaces downstream of and/or adjacent to the microchannel fins; and/or (c) a serial cross-flow and/or counter-flow geometry for the working fluid so that, although the gas flows over each fin in cross-flow to optimize gas side heat transfer, the progression of working fluid flow through adjacent stages of strip fins in the heater core simultaneously creates a counter-flow to the flow of the gas through the heat exchanger resulting in an overall heat exchanger core effectiveness that is more effective than either a conventional counter flow or cross-flow heat exchanger geometry.
- In one instance, the disclosed invention can be utilized to heat or cool a working fluid flowing through the strip fins of the heat exchanger, depending upon the temperature of the gas flowing over the strip fins. In one embodiment, the heat exchanger of the present invention can be used to remove waste heat from a hot gas stream and transfer the heat into a working fluid. In still another embodiment, the heat exchanger of the present invention can be used to remove heat from a working fluid by passing a colder gas over the strip fins. An additional embodiment of the present invention is designed to remove heat from a working fluid and may incorporate a motor-driven fan local to the heat exchanger to create a standalone fan-cooled condenser with optimized heat exchanger effectiveness and pressure drop of the gas and/or working fluids as it flows through the heat exchanger.
- Given the above, the present invention is a heat exchanger that comprises a plurality of microchannel fins and header blocks so that the fins interlock with the header blocks and the blocks can be stacked to build a heat exchanger core of any number of fins. One embodiment of the present invention utilizes microchannel fins of varying widths, varying lengths, varying horizontal spacing, varying vertical spacing, varying fins per stage, or varying number of fin stages to optimize heat exchanger effectiveness for a given set of gas and working fluid combinations.
- In another embodiment, the present invention relates to a heat exchanger that comprises multiple heater cores that utilizes multiple heat exchanger cores, as described above, that utilize microchannels of varying widths, varying lengths, varying horizontal spacing, varying vertical spacing, varying channels per stage and/or unit of area, varying channel orientation, or varying number of channel stages to optimize heat exchanger effectiveness for a given set of gas and working fluid combinations. In this manner, the present invention yields a multiple core heat exchanger that possesses improved heat exchanger effectiveness compared to conventional heat exchangers. In still another embodiment, heater core number and sizing may be varied to scale up or scale down the overall heat exchanger size and heat transfer capacity.
- It should be noted that with regard to each individual core, the geometry and/or shape thereof is not limited to any one particular orientation. Rather, any suitable geometry or shape can be utilized in conjunction with the present invention.
- It should be noted that the geometric shape of the fins in the present invention is not limited to any one specific geometrical shape. Instead, any suitable geometric fin shape can be utilized in conjunction with the present invention. Such shapes include, but are not limited to, circular, rectangular, square, polygonal, or elongated in external cross-section shape. In another embodiment, the plurality of microchannels, mesochannels, and/or minichannels within the strip fins can have a cross-sectional shape that is circular, rectangular, square, polygonal, or elongated in shape.
- In still another embodiment, the present invention relates to a system that utilizes a combination of the above disclosed features to accomplish the goal of creating an improved heat exchanger. For example, additional embodiments can include the specific selection and combination of the above mentioned embodiments to optimize heat exchanger effectiveness and pressure drop of the gas and/or working fluids as it flows through the heat exchanger.
- In one such embodiment, the present invention is comprised of header blocks so that the fins interlock with the header blocks and the blocks can be stacked to build a heat exchanger core of any number of fins. The header blocks contain a plurality of openings that act as inlet and outlet manifolds for transferring the working fluid to the flow passages inside the strip fins. The header blocks route the working fluid through the strip fins in a serial and parallel fashion to enable the working fluid to counter flow and cross flow to the gas flowing over the strip fins to optimize heat exchanger effectiveness and pressure drop. Each strip fin includes a plurality of openings at either end of the strip fin that connect the microchannels to the header blocks.
- In keeping with the embodiments of this invention, an exemplary process for manufacturing a heat exchanger in accordance with the present invention comprises assembling the fins strips and header blocks together using diffusion bonding, brazing, welding, structural adhesive bonding, or similar joining methods.
- In another embodiment, another manufacturing method comprises the fabrication of strip fins from a sheet material stock that can have the microchannels formed into one or both faces of the sheet via chemical etching, laser machining, roll-forming, stamping or similar forming methods. The formed sheet can be joined to a simple flat cover sheet or another formed sheet to enclose the microchannels using diffusion bonding, brazing, welding, structural adhesive bonding, or similar joining methods.
- In another embodiment, a manufacturing method in accordance with the present invention comprises strip fins fabricated from extruded material with an appropriate microchannel geometry formed directly and enclosed into the fin during extrusion.
- As an example for another manufacturing method, such a method comprises header blocks that are fabricated from sheet material stock with manifold features formed into the sheet using chemical etching, laser machining, roll-forming, stamping or similar forming methods.
- Turning to the Figures,
FIG. 1 is an illustration of a heat exchange formed in accordance with one embodiment of the present invention, whileFIG. 2 is an illustration of one method of forming a heat exchange ofFIG. 1 . - It should be noted that the heat exchangers of the present invention can be used for various applications including, but not limited to, a regenerator in a system where waste heat is recaptured and “reused.” One example of such an embodiment is disclosed in
FIG. 1 . - In
FIG. 3 , another type of heat exchanger is disclosed where this heat exchanger is suitable, for use, among other applications, as a regenerative heat exchanger. By “regenerative heat exchanger” it is meant that heat, including even what would normally be waste heat, is recaptured and reutilized within a closed system using a working fluid. In one embodiment, the working fluid of this embodiment includes, but is not limited to, an inert gas such as carbon dioxide, nitrogen, helium, air, etc. that is in either gas form, or in a supercritical fluid form. In one specific embodiment, a supercritical fluid, or supercritical gas, formed from carbon dioxide is utilized as the working fluid. - In one embodiment, a heat exchanger in accordance with the present invention can be formed with one or more cores having one or more printed circuit heat exchange (PCHE) panels. Such panels are known in the art, and are described in U.S. Pat. Nos. 6,921,518; 7,022,294; and 7,033,553, all of which are incorporated herein by reference, in their entireties, for their teachings related to printed circuit heat exchange (PCHE) panels. Other suitable heat exchangers for use as a regenerator in the system of
FIG. 3 are disclosed in United States Published Patent Application No. 2006/0254759, the disclosure of which is incorporated herein in its entirety. - The orientation and/or geometry of the cores is, in one instance, selected to maximize the thermal transfer between the working fluid (such fluids being those detailed above) at temperature 1 and the same, or a different, working at temperature 2. Depending upon the orientation of the system of
FIG. 3 , either temperature 1 or temperature 2 could be greater than the other remaining temperature. In one instance, the difference between two temperatures of the present invention is at least one degree Celsius. In this embodiment, the pressure used in the regenerators of this embodiment is in the range of about 500 to 7500 psi, inclusive. - In
FIG. 3 , a power generation system 100 is illustrated. In system 100 ofFIG. 3 comprises a pump 102, a regenerator 104, a generator 106, an expander 108, and a condenser 110. All of the elements in system 100 are connected via a suitable transfer means that carries a working fluid. The nature of the working fluid is as described above. Regarding the transfer means, such means include, but are not limited to, piping, conduit, tubes, etc. InFIG. 3 , the transfer means is a piping 112 that is capable of carrying a pressurized working fluid. In one instance, the pressure in piping 112 falls within the range of about 400 to about 3,500 psi, inclusive. In one embodiment, the pressure at P1 is in the range of about 400 to about 1,300 psi and the pressure at P2 is in the range of about 1,700 to about 3,500 psi. It would be apparent to those of skill in the art, that a pressure differential must exist through piping 112 in order to drive system 100. - In another embodiment, the present invention relates to a gas-to-working fluid heat exchanger comprising: (a) a plurality of fins designed to contain at least one working fluid, wherein each of the plurality of fins contain therein one or more microchannels, mesochannels, or minichannels designed to permit the movement of the at least one working fluid through the one or more microchannels, mesochannels, or minichannels; (b) the plurality of fins being arranged in a horizontally and vertically spaced array or stages with an “offset strip” geometry so that heat transfer on the gas side of the heat exchanger is enhanced by frequent break-up of the fluid boundary layer, creating a turbulent boundary layer at the upper and lower heat transfer surfaces downstream of and/or adjacent to the microchannel fins; and (c) a plurality of cross-flow and/or counter-flow working fluid paths designed to permit the progression of working fluid flow through adjacent sets and/or stages of fins in the heater core in order to create a counter-flow to the flow of the gas through the heat exchanger thereby resulting in a heat exchanger having a core effectiveness that is more effective than either a conventional counter-flow or cross-flow heat exchanger geometry.
- In still another embodiment, the heat exchanger of the present invention can be utilized in one or more locations in the waste heat engine embodiments disclosed in U.S. patent application Ser. No. 12/631,379, filed Dec. 4, 2009, the entirety of which is hereby incorporated by reference herein.
- Although the invention has been described in detail with particular reference to certain aspects detailed herein, other aspects can achieve the same results. Variations and modifications of the present invention will be obvious to those skilled in the art, and the present invention is intended to cover in the appended claims all such modifications and equivalents.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/716,021 US20100218930A1 (en) | 2009-03-02 | 2010-03-02 | System and method for constructing heat exchanger |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US20905509P | 2009-03-02 | 2009-03-02 | |
US12/716,021 US20100218930A1 (en) | 2009-03-02 | 2010-03-02 | System and method for constructing heat exchanger |
Publications (1)
Publication Number | Publication Date |
---|---|
US20100218930A1 true US20100218930A1 (en) | 2010-09-02 |
Family
ID=42666502
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/716,021 Abandoned US20100218930A1 (en) | 2009-03-02 | 2010-03-02 | System and method for constructing heat exchanger |
Country Status (1)
Country | Link |
---|---|
US (1) | US20100218930A1 (en) |
Cited By (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102095284A (en) * | 2011-01-30 | 2011-06-15 | 杭州沈氏换热器有限公司 | Manufacture method of microchannel heat exchange body of heat exchanger |
US8613195B2 (en) | 2009-09-17 | 2013-12-24 | Echogen Power Systems, Llc | Heat engine and heat to electricity systems and methods with working fluid mass management control |
US8616001B2 (en) | 2010-11-29 | 2013-12-31 | Echogen Power Systems, Llc | Driven starter pump and start sequence |
US8616323B1 (en) | 2009-03-11 | 2013-12-31 | Echogen Power Systems | Hybrid power systems |
US8783034B2 (en) | 2011-11-07 | 2014-07-22 | Echogen Power Systems, Llc | Hot day cycle |
US8794002B2 (en) | 2009-09-17 | 2014-08-05 | Echogen Power Systems | Thermal energy conversion method |
US8813497B2 (en) | 2009-09-17 | 2014-08-26 | Echogen Power Systems, Llc | Automated mass management control |
US8857186B2 (en) | 2010-11-29 | 2014-10-14 | Echogen Power Systems, L.L.C. | Heat engine cycles for high ambient conditions |
US8869531B2 (en) | 2009-09-17 | 2014-10-28 | Echogen Power Systems, Llc | Heat engines with cascade cycles |
US9014791B2 (en) | 2009-04-17 | 2015-04-21 | Echogen Power Systems, Llc | System and method for managing thermal issues in gas turbine engines |
US9062898B2 (en) | 2011-10-03 | 2015-06-23 | Echogen Power Systems, Llc | Carbon dioxide refrigeration cycle |
US9091278B2 (en) | 2012-08-20 | 2015-07-28 | Echogen Power Systems, Llc | Supercritical working fluid circuit with a turbo pump and a start pump in series configuration |
US9118226B2 (en) | 2012-10-12 | 2015-08-25 | Echogen Power Systems, Llc | Heat engine system with a supercritical working fluid and processes thereof |
US9316404B2 (en) | 2009-08-04 | 2016-04-19 | Echogen Power Systems, Llc | Heat pump with integral solar collector |
US9341084B2 (en) | 2012-10-12 | 2016-05-17 | Echogen Power Systems, Llc | Supercritical carbon dioxide power cycle for waste heat recovery |
US20160178077A1 (en) * | 2014-12-19 | 2016-06-23 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Fluid flow device and method of operating same |
US9441504B2 (en) | 2009-06-22 | 2016-09-13 | Echogen Power Systems, Llc | System and method for managing thermal issues in one or more industrial processes |
US9638065B2 (en) | 2013-01-28 | 2017-05-02 | Echogen Power Systems, Llc | Methods for reducing wear on components of a heat engine system at startup |
US9752460B2 (en) | 2013-01-28 | 2017-09-05 | Echogen Power Systems, Llc | Process for controlling a power turbine throttle valve during a supercritical carbon dioxide rankine cycle |
US20170284749A1 (en) * | 2014-08-21 | 2017-10-05 | Trane International Inc. | Heat exchanger coil with offset fins |
US10428713B2 (en) | 2017-09-07 | 2019-10-01 | Denso International America, Inc. | Systems and methods for exhaust heat recovery and heat storage |
US10934895B2 (en) | 2013-03-04 | 2021-03-02 | Echogen Power Systems, Llc | Heat engine systems with high net power supercritical carbon dioxide circuits |
US11187112B2 (en) | 2018-06-27 | 2021-11-30 | Echogen Power Systems Llc | Systems and methods for generating electricity via a pumped thermal energy storage system |
US11187212B1 (en) | 2021-04-02 | 2021-11-30 | Ice Thermal Harvesting, Llc | Methods for generating geothermal power in an organic Rankine cycle operation during hydrocarbon production based on working fluid temperature |
US11293309B2 (en) | 2014-11-03 | 2022-04-05 | Echogen Power Systems, Llc | Active thrust management of a turbopump within a supercritical working fluid circuit in a heat engine system |
US11293414B1 (en) | 2021-04-02 | 2022-04-05 | Ice Thermal Harvesting, Llc | Systems and methods for generation of electrical power in an organic rankine cycle operation |
US11326550B1 (en) | 2021-04-02 | 2022-05-10 | Ice Thermal Harvesting, Llc | Systems and methods utilizing gas temperature as a power source |
US11421663B1 (en) | 2021-04-02 | 2022-08-23 | Ice Thermal Harvesting, Llc | Systems and methods for generation of electrical power in an organic Rankine cycle operation |
US11435120B2 (en) | 2020-05-05 | 2022-09-06 | Echogen Power Systems (Delaware), Inc. | Split expansion heat pump cycle |
US11480074B1 (en) | 2021-04-02 | 2022-10-25 | Ice Thermal Harvesting, Llc | Systems and methods utilizing gas temperature as a power source |
US11486370B2 (en) | 2021-04-02 | 2022-11-01 | Ice Thermal Harvesting, Llc | Modular mobile heat generation unit for generation of geothermal power in organic Rankine cycle operations |
US11493029B2 (en) | 2021-04-02 | 2022-11-08 | Ice Thermal Harvesting, Llc | Systems and methods for generation of electrical power at a drilling rig |
US11592009B2 (en) | 2021-04-02 | 2023-02-28 | Ice Thermal Harvesting, Llc | Systems and methods for generation of electrical power at a drilling rig |
US11629638B2 (en) | 2020-12-09 | 2023-04-18 | Supercritical Storage Company, Inc. | Three reservoir electric thermal energy storage system |
US11644015B2 (en) | 2021-04-02 | 2023-05-09 | Ice Thermal Harvesting, Llc | Systems and methods for generation of electrical power at a drilling rig |
US12049875B2 (en) | 2023-07-21 | 2024-07-30 | Ice Thermal Harvesting, Llc | Systems and methods for generation of electrical power in an organic Rankine cycle operation |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6921518B2 (en) * | 2000-01-25 | 2005-07-26 | Meggitt (Uk) Limited | Chemical reactor |
US20060060333A1 (en) * | 2002-11-05 | 2006-03-23 | Lalit Chordia | Methods and apparatuses for electronics cooling |
US7022294B2 (en) * | 2000-01-25 | 2006-04-04 | Meggitt (Uk) Limited | Compact reactor |
US7033553B2 (en) * | 2000-01-25 | 2006-04-25 | Meggitt (Uk) Limited | Chemical reactor |
US20060254759A1 (en) * | 2003-05-06 | 2006-11-16 | Meggitt (Uk) Ltd. | Heat exchanger core |
US20070246206A1 (en) * | 2006-04-25 | 2007-10-25 | Advanced Heat Transfer Llc | Heat exchangers based on non-circular tubes with tube-endplate interface for joining tubes of disparate cross-sections |
-
2010
- 2010-03-02 US US12/716,021 patent/US20100218930A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6921518B2 (en) * | 2000-01-25 | 2005-07-26 | Meggitt (Uk) Limited | Chemical reactor |
US7022294B2 (en) * | 2000-01-25 | 2006-04-04 | Meggitt (Uk) Limited | Compact reactor |
US7033553B2 (en) * | 2000-01-25 | 2006-04-25 | Meggitt (Uk) Limited | Chemical reactor |
US20060060333A1 (en) * | 2002-11-05 | 2006-03-23 | Lalit Chordia | Methods and apparatuses for electronics cooling |
US20060254759A1 (en) * | 2003-05-06 | 2006-11-16 | Meggitt (Uk) Ltd. | Heat exchanger core |
US20070246206A1 (en) * | 2006-04-25 | 2007-10-25 | Advanced Heat Transfer Llc | Heat exchangers based on non-circular tubes with tube-endplate interface for joining tubes of disparate cross-sections |
Cited By (70)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8616323B1 (en) | 2009-03-11 | 2013-12-31 | Echogen Power Systems | Hybrid power systems |
US9014791B2 (en) | 2009-04-17 | 2015-04-21 | Echogen Power Systems, Llc | System and method for managing thermal issues in gas turbine engines |
US9441504B2 (en) | 2009-06-22 | 2016-09-13 | Echogen Power Systems, Llc | System and method for managing thermal issues in one or more industrial processes |
US9316404B2 (en) | 2009-08-04 | 2016-04-19 | Echogen Power Systems, Llc | Heat pump with integral solar collector |
US9863282B2 (en) | 2009-09-17 | 2018-01-09 | Echogen Power System, LLC | Automated mass management control |
US9115605B2 (en) | 2009-09-17 | 2015-08-25 | Echogen Power Systems, Llc | Thermal energy conversion device |
US8813497B2 (en) | 2009-09-17 | 2014-08-26 | Echogen Power Systems, Llc | Automated mass management control |
US8794002B2 (en) | 2009-09-17 | 2014-08-05 | Echogen Power Systems | Thermal energy conversion method |
US8869531B2 (en) | 2009-09-17 | 2014-10-28 | Echogen Power Systems, Llc | Heat engines with cascade cycles |
US8966901B2 (en) | 2009-09-17 | 2015-03-03 | Dresser-Rand Company | Heat engine and heat to electricity systems and methods for working fluid fill system |
US9458738B2 (en) | 2009-09-17 | 2016-10-04 | Echogen Power Systems, Llc | Heat engine and heat to electricity systems and methods with working fluid mass management control |
US8613195B2 (en) | 2009-09-17 | 2013-12-24 | Echogen Power Systems, Llc | Heat engine and heat to electricity systems and methods with working fluid mass management control |
US8616001B2 (en) | 2010-11-29 | 2013-12-31 | Echogen Power Systems, Llc | Driven starter pump and start sequence |
US9410449B2 (en) | 2010-11-29 | 2016-08-09 | Echogen Power Systems, Llc | Driven starter pump and start sequence |
US8857186B2 (en) | 2010-11-29 | 2014-10-14 | Echogen Power Systems, L.L.C. | Heat engine cycles for high ambient conditions |
CN102095284A (en) * | 2011-01-30 | 2011-06-15 | 杭州沈氏换热器有限公司 | Manufacture method of microchannel heat exchange body of heat exchanger |
US9062898B2 (en) | 2011-10-03 | 2015-06-23 | Echogen Power Systems, Llc | Carbon dioxide refrigeration cycle |
US8783034B2 (en) | 2011-11-07 | 2014-07-22 | Echogen Power Systems, Llc | Hot day cycle |
US9091278B2 (en) | 2012-08-20 | 2015-07-28 | Echogen Power Systems, Llc | Supercritical working fluid circuit with a turbo pump and a start pump in series configuration |
US9118226B2 (en) | 2012-10-12 | 2015-08-25 | Echogen Power Systems, Llc | Heat engine system with a supercritical working fluid and processes thereof |
US9341084B2 (en) | 2012-10-12 | 2016-05-17 | Echogen Power Systems, Llc | Supercritical carbon dioxide power cycle for waste heat recovery |
US9638065B2 (en) | 2013-01-28 | 2017-05-02 | Echogen Power Systems, Llc | Methods for reducing wear on components of a heat engine system at startup |
US9752460B2 (en) | 2013-01-28 | 2017-09-05 | Echogen Power Systems, Llc | Process for controlling a power turbine throttle valve during a supercritical carbon dioxide rankine cycle |
US10934895B2 (en) | 2013-03-04 | 2021-03-02 | Echogen Power Systems, Llc | Heat engine systems with high net power supercritical carbon dioxide circuits |
US20170284749A1 (en) * | 2014-08-21 | 2017-10-05 | Trane International Inc. | Heat exchanger coil with offset fins |
US10422588B2 (en) * | 2014-08-21 | 2019-09-24 | Trane International Inc. | Heat exchanger coil with offset fins |
US11293309B2 (en) | 2014-11-03 | 2022-04-05 | Echogen Power Systems, Llc | Active thrust management of a turbopump within a supercritical working fluid circuit in a heat engine system |
US20160178077A1 (en) * | 2014-12-19 | 2016-06-23 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Fluid flow device and method of operating same |
US10428713B2 (en) | 2017-09-07 | 2019-10-01 | Denso International America, Inc. | Systems and methods for exhaust heat recovery and heat storage |
US11187112B2 (en) | 2018-06-27 | 2021-11-30 | Echogen Power Systems Llc | Systems and methods for generating electricity via a pumped thermal energy storage system |
US11435120B2 (en) | 2020-05-05 | 2022-09-06 | Echogen Power Systems (Delaware), Inc. | Split expansion heat pump cycle |
US11629638B2 (en) | 2020-12-09 | 2023-04-18 | Supercritical Storage Company, Inc. | Three reservoir electric thermal energy storage system |
US11280322B1 (en) | 2021-04-02 | 2022-03-22 | Ice Thermal Harvesting, Llc | Systems for generating geothermal power in an organic Rankine cycle operation during hydrocarbon production based on wellhead fluid temperature |
US11598320B2 (en) | 2021-04-02 | 2023-03-07 | Ice Thermal Harvesting, Llc | Systems and methods for generation of electrical power at a drilling rig |
US11255315B1 (en) | 2021-04-02 | 2022-02-22 | Ice Thermal Harvesting, Llc | Controller for controlling generation of geothermal power in an organic Rankine cycle operation during hydrocarbon production |
US11293414B1 (en) | 2021-04-02 | 2022-04-05 | Ice Thermal Harvesting, Llc | Systems and methods for generation of electrical power in an organic rankine cycle operation |
US11326550B1 (en) | 2021-04-02 | 2022-05-10 | Ice Thermal Harvesting, Llc | Systems and methods utilizing gas temperature as a power source |
US11359612B1 (en) | 2021-04-02 | 2022-06-14 | Ice Thermal Harvesting, Llc | Systems and methods for generation of electrical power in an organic rankine cycle operation |
US11359576B1 (en) | 2021-04-02 | 2022-06-14 | Ice Thermal Harvesting, Llc | Systems and methods utilizing gas temperature as a power source |
US11421663B1 (en) | 2021-04-02 | 2022-08-23 | Ice Thermal Harvesting, Llc | Systems and methods for generation of electrical power in an organic Rankine cycle operation |
US11421625B1 (en) | 2021-04-02 | 2022-08-23 | Ice Thermal Harvesting, Llc | Systems and methods utilizing gas temperature as a power source |
US11236735B1 (en) | 2021-04-02 | 2022-02-01 | Ice Thermal Harvesting, Llc | Methods for generating geothermal power in an organic Rankine cycle operation during hydrocarbon production based on wellhead fluid temperature |
US11480074B1 (en) | 2021-04-02 | 2022-10-25 | Ice Thermal Harvesting, Llc | Systems and methods utilizing gas temperature as a power source |
US11486330B2 (en) | 2021-04-02 | 2022-11-01 | Ice Thermal Harvesting, Llc | Systems and methods utilizing gas temperature as a power source |
US11486370B2 (en) | 2021-04-02 | 2022-11-01 | Ice Thermal Harvesting, Llc | Modular mobile heat generation unit for generation of geothermal power in organic Rankine cycle operations |
US11493029B2 (en) | 2021-04-02 | 2022-11-08 | Ice Thermal Harvesting, Llc | Systems and methods for generation of electrical power at a drilling rig |
US11542888B2 (en) | 2021-04-02 | 2023-01-03 | Ice Thermal Harvesting, Llc | Systems and methods utilizing gas temperature as a power source |
US11549402B2 (en) | 2021-04-02 | 2023-01-10 | Ice Thermal Harvesting, Llc | Systems and methods utilizing gas temperature as a power source |
US11572849B1 (en) | 2021-04-02 | 2023-02-07 | Ice Thermal Harvesting, Llc | Systems and methods utilizing gas temperature as a power source |
US11578706B2 (en) | 2021-04-02 | 2023-02-14 | Ice Thermal Harvesting, Llc | Systems for generating geothermal power in an organic Rankine cycle operation during hydrocarbon production based on wellhead fluid temperature |
US11592009B2 (en) | 2021-04-02 | 2023-02-28 | Ice Thermal Harvesting, Llc | Systems and methods for generation of electrical power at a drilling rig |
US11274663B1 (en) | 2021-04-02 | 2022-03-15 | Ice Thermal Harvesting, Llc | Controller for controlling generation of geothermal power in an organic rankine cycle operation during hydrocarbon production |
US11624355B2 (en) | 2021-04-02 | 2023-04-11 | Ice Thermal Harvesting, Llc | Modular mobile heat generation unit for generation of geothermal power in organic Rankine cycle operations |
US11187212B1 (en) | 2021-04-02 | 2021-11-30 | Ice Thermal Harvesting, Llc | Methods for generating geothermal power in an organic Rankine cycle operation during hydrocarbon production based on working fluid temperature |
US11644015B2 (en) | 2021-04-02 | 2023-05-09 | Ice Thermal Harvesting, Llc | Systems and methods for generation of electrical power at a drilling rig |
US11644014B2 (en) | 2021-04-02 | 2023-05-09 | Ice Thermal Harvesting, Llc | Systems and methods for generation of electrical power in an organic Rankine cycle operation |
US11668209B2 (en) | 2021-04-02 | 2023-06-06 | Ice Thermal Harvesting, Llc | Systems and methods utilizing gas temperature as a power source |
US11680541B2 (en) | 2021-04-02 | 2023-06-20 | Ice Thermal Harvesting, Llc | Systems and methods utilizing gas temperature as a power source |
US11732697B2 (en) | 2021-04-02 | 2023-08-22 | Ice Thermal Harvesting, Llc | Systems for generating geothermal power in an organic Rankine cycle operation during hydrocarbon production based on wellhead fluid temperature |
US11761433B2 (en) | 2021-04-02 | 2023-09-19 | Ice Thermal Harvesting, Llc | Systems and methods for generation of electrical power in an organic Rankine cycle operation |
US11761353B2 (en) | 2021-04-02 | 2023-09-19 | Ice Thermal Harvesting, Llc | Systems and methods utilizing gas temperature as a power source |
US11773805B2 (en) | 2021-04-02 | 2023-10-03 | Ice Thermal Harvesting, Llc | Systems and methods utilizing gas temperature as a power source |
US11879409B2 (en) | 2021-04-02 | 2024-01-23 | Ice Thermal Harvesting, Llc | Systems and methods utilizing gas temperature as a power source |
US11905934B2 (en) | 2021-04-02 | 2024-02-20 | Ice Thermal Harvesting, Llc | Systems and methods for generation of electrical power at a drilling rig |
US11933279B2 (en) | 2021-04-02 | 2024-03-19 | Ice Thermal Harvesting, Llc | Systems and methods for generation of electrical power at a drilling rig |
US11933280B2 (en) | 2021-04-02 | 2024-03-19 | Ice Thermal Harvesting, Llc | Modular mobile heat generation unit for generation of geothermal power in organic Rankine cycle operations |
US11946459B2 (en) | 2021-04-02 | 2024-04-02 | Ice Thermal Harvesting, Llc | Systems and methods for generation of electrical power at a drilling rig |
US11959466B2 (en) | 2021-04-02 | 2024-04-16 | Ice Thermal Harvesting, Llc | Systems and methods for generation of electrical power in an organic Rankine cycle operation |
US11971019B2 (en) | 2021-04-02 | 2024-04-30 | Ice Thermal Harvesting, Llc | Systems for generating geothermal power in an organic Rankine cycle operation during hydrocarbon production based on wellhead fluid temperature |
US12049875B2 (en) | 2023-07-21 | 2024-07-30 | Ice Thermal Harvesting, Llc | Systems and methods for generation of electrical power in an organic Rankine cycle operation |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20100218930A1 (en) | System and method for constructing heat exchanger | |
EP2176616B1 (en) | Heat exchanger | |
US4676305A (en) | Microtube-strip heat exchanger | |
US9657999B2 (en) | Alternating channel heat exchanger | |
RU2010104252A (en) | HEAT EXCHANGE SYSTEM WITH A HEAT EXCHANGE DEVICE, AND ALSO A METHOD FOR PRODUCING A HEAT EXCHANGE SYSTEM | |
CN107976101B (en) | Using method of outer fin heat exchange tube | |
US20050217837A1 (en) | Compact counterflow heat exchanger | |
WO2016075896A1 (en) | Heat exchange device and manufacturing method of heat exchange device | |
JP2007170718A (en) | Heat exchanger | |
US20080184734A1 (en) | Flat Tube Single Serpentine Co2 Heat Exchanger | |
US20130277027A1 (en) | Plate heat exchanger with several modules connected by sections | |
JP2001355984A (en) | Heat transfer block | |
USRE33528E (en) | Microtube-strip heat exchanger | |
JP5511917B2 (en) | Assembly structure of plate fin type heat exchanger and manufacturing method of plate fin type heat exchanger | |
KR102506094B1 (en) | Single pass cross-flow heat exchanger | |
JP5944104B2 (en) | Heat exchanger | |
JP4681528B2 (en) | Heat exchanger header structure | |
JP5228215B2 (en) | Primary heat transfer type heat exchanger | |
CN207132764U (en) | Flat pipe, micro-channel heat exchanger and refrigeration equipment | |
KR101745280B1 (en) | Heat transfer device and method for manufacturing thereof | |
JP2016031226A (en) | Plate fin heat exchanger and method of producing heat exchanger | |
JP2018017424A (en) | Manufacturing method of heat exchanger | |
JP2013127341A (en) | Heat exchanger | |
US11879691B2 (en) | Counter-flow heat exchanger | |
RU2395775C1 (en) | Header plate-type heat exchanger |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: ECHOGEN POWER SYSTEMS, OHIO Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PROESCHEL, RICHARD ALAN;REEL/FRAME:024257/0205 Effective date: 20100330 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |
|
AS | Assignment |
Owner name: DRESSER-RAND COMPANY, NEW YORK Free format text: LICENSE;ASSIGNOR:ECHOGEN POWER SYSTEMS, LLC;REEL/FRAME:035245/0190 Effective date: 20150318 |
|
AS | Assignment |
Owner name: MTERRA VENTURES, LLC, FLORIDA Free format text: SECURITY AGREEMENT;ASSIGNOR:ECHOGEN POWER SYSTEMS (DELAWARE), INC.;REEL/FRAME:065265/0848 Effective date: 20230412 |