US20100154466A1 - Temperature-controlled cabinet - Google Patents
Temperature-controlled cabinet Download PDFInfo
- Publication number
- US20100154466A1 US20100154466A1 US12/601,140 US60114008A US2010154466A1 US 20100154466 A1 US20100154466 A1 US 20100154466A1 US 60114008 A US60114008 A US 60114008A US 2010154466 A1 US2010154466 A1 US 2010154466A1
- Authority
- US
- United States
- Prior art keywords
- cabinet
- heat transfer
- evaporator pipe
- sealed enclosure
- wall
- 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
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 238000012546 transfer Methods 0.000 claims abstract description 19
- 238000005057 refrigeration Methods 0.000 claims abstract description 18
- 238000010521 absorption reaction Methods 0.000 claims abstract description 11
- 239000000284 extract Substances 0.000 claims abstract description 3
- 238000009413 insulation Methods 0.000 claims description 10
- 238000010276 construction Methods 0.000 claims description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 8
- 238000009792 diffusion process Methods 0.000 description 6
- 238000009826 distribution Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000013529 heat transfer fluid Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 239000012782 phase change material Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
- F25B15/10—Sorption machines, plants or systems, operating continuously, e.g. absorption type with inert gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B17/00—Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
- F25B39/026—Evaporators specially adapted for sorption type systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
- F25D11/025—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures using primary and secondary refrigeration systems
Definitions
- the invention relates generally to temperature controlled cabinets using diffusion absorption refrigeration cycle systems, in particular relating to cabinets for containing temperature-sensitive electrical and electronic equipment.
- control equipment and in particular, the standby or backup battery power supplies thereof.
- Such control equipment may be found in power distribution, telecommunication, transport and security systems and may often be situated in isolated and exposed outdoor and indoor locations. Installing such equipment in an enclosure for protection from rain or other precipitation can often increase temperature variations, in that sunlight on the enclosure will tend to heat the contents of the enclosure to far higher temperatures than would otherwise be the case. Additionally, in some applications, heat emitting equipment situated close to the sensitive equipment may add to the thermal stress. Thus, there is a requirement to provide cooling or air conditioning to the most temperature sensitive items.
- a problem to be addressed in such temperature controlled enclosures is to make them as thermally efficient as possible, whilst at the same time developing devices that have no moving components which removes the need for regular and expensive maintenance due to the failure of those components as a result of mechanical wear and tear.
- Components which can be removed include mechanical parts such as fans, pumps and compressors and consumables such as filters.
- an evaporator pipe of the diffusion absorption refrigeration cycle system extending into the enclosure has a tendency to cause a build-up of ice when the cooling system is in operation.
- This introduces safety issues for a cabinet containing electrical and electronic equipment.
- the ability of such a refrigerator system to extract heat from the cabinet is limited because the surface area of the evaporator pipe is typically small when compared to the contents of the cabinet.
- Simply adding a heat sink composed of a thermally conductive material to the evaporator pipe does not necessarily solve this problem, because the temperature distribution of the heat sink may not be uniform over a large surface area.
- a further object of the invention is to reduce the variation in temperature throughout the interior of temperature controlled enclosures.
- the invention provides a temperature-controllable equipment cabinet comprising a diffusion-absorption refrigeration cycle system, an evaporator pipe of the refrigeration system extending through a wall of the cabinet and passing through a sealed enclosure for containing a heat transfer liquid, the sealed enclosure extending across and forming part of an internal surface of the cabinet such that the refrigeration system in use extracts heat from within the cabinet to an external environment.
- the sealed enclosure is preferably configured to provide a ‘thermo-siphon’ effect, i.e. where a change in density of a working liquid due to temperature variation is used to generate a pumping force through convention flow, thus improving the distribution of cooling throughout the enclosure and ensuring that there is no ice build up on the evaporator pipe coming into contact with any of the contents of the enclosure.
- a ‘thermo-siphon’ effect i.e. where a change in density of a working liquid due to temperature variation is used to generate a pumping force through convention flow, thus improving the distribution of cooling throughout the enclosure and ensuring that there is no ice build up on the evaporator pipe coming into contact with any of the contents of the enclosure.
- the enclosure may be attached to, or embedded in, the wall by various methods which include one or more of gluing, welding and mechanical fixing.
- the enclosure through which the evaporator pipe passes may form a part of the ceiling, floor or side wall of the enclosure.
- the wall may alternatively be a door of the cabinet.
- One or more sides of the enclosure may be made of different materials.
- the wall of the cabinet preferably comprises a layer of thermal insulation through which the evaporator pipe extends.
- the sealed enclosure is preferably substantially planar in construction, extending across the internal surface of the wall.
- the evaporator pipe preferably passes in a horizontal direction through an upper portion of the sealed enclosure when the cabinet is oriented for use such that, in use, convective flow of the heat transfer liquid aids heat transfer from within the cabinet.
- the invention enables improved temperature controlled enclosures for electrical and electronic components when used with a diffusion absorption refrigeration cycle system, leading to lower cost and greater energy efficiency and for a wider range of ambient temperatures.
- the sealed enclosure forms a thermo-siphon configured through its location and shape to optimise and improve convection around the evaporator pipe, thus effectively providing additional surface area across which to transfer heat from within the cabinet.
- Certain embodiments of the invention can be achieved through modification of an existing temperature controllable cabinet through the addition of a sealed enclosure for containing heat transfer fluid around the evaporator pipe of a diffusion-absorption refrigerator system.
- the sealed enclosure may be made from one or a limited number of pieces of material, which improves the ease of manufacture of the enclosure and the ease of installation around the evaporator pipe.
- Preferred embodiments of the invention require no moving parts, such as fans which would increase the maintenance costs of the equipment. Heat transfer from the evaporator pipe is instead effected without forced convection. Ice build-up around the evaporator pipe is also prevented, enabling electrical and electronic components within the cabinet to be safely cooled, and the temperature distribution within the cabinet made more uniform. Additional fans may, however, be used where increased heat transfer is required, though at the expense of additional maintenance cost and complexity.
- FIG. 1 shows a cross-sectional view of a diffusion-absorption refrigeration system.
- a diffusion absorption refrigeration system 5 is attached to a structural part of a cabinet, for example being attached to a door or a wall 9 of the cabinet.
- the wall 9 comprises a layer of insulation 10 to thermally isolate the internal volume 8 of the cabinet from the external environment 7 .
- a recess 14 is provided in the wall 9 , for example within the layer of insulation 10 , through which the evaporator pipe 4 passes.
- the recess allows the wall 9 to be kept relatively thin without unduly compromising the insulation of the internal volume 8 of the cabinet.
- the recess also allows the evaporator pipe 4 to be offset from other warmer parts of the system.
- the evaporator pipe 4 of the refrigerator system 5 acts to draw heat from within the cabinet, and a heatsink 11 attached to the condenser of the system 5 conducts this heat to the external environment 7 .
- a liquid-filled enclosure, or thermo-siphon 3 is attached to the inside of the wall 9 , forming a sealed vessel surrounding the evaporator pipe 4 .
- the enclosure 3 comprises one or more filling points for introducing liquid 12 into the enclosure once it has been fixed in place around the evaporator pipe 4 .
- the liquid filled enclosure 3 may be attached to the structural insulation 10 , or to a material enclosing the insulation, by way of welding, gluing or other mechanical fixing methods, for example at fixing points 2 a, 2 b on the edge of the enclosure 3 .
- the enclosure 3 may have one or more sides or faces in common with the structural insulation 10 or a material enclosing the insulation, for example along an interface 13 between the internal volume of the enclosure 6 and the insulation 10 .
- the external surface 15 of the enclosure 3 may be in direct contact with the contents of the temperature controlled enclosure, or may act as a cooling element across the internal wall 15 for cooling air within the cabinet.
- thermo-siphon is preferably optimised to provide a balance between thermal efficiency in heat transfer, cost of manufacture, fit with the refrigeration cycle and weight of fluid.
- the embodiment shown illustrates a particular preferred embodiment, where the enclosure 3 is in a substantially planar form extending across the internal surface of the wall, so as to maximise the cooling effect within the cabinet and minimise the quantity of heat transfer liquid required.
- the evaporator pipe 4 is located towards an upper end of the enclosure 3 , extending through the enclosure in a substantially horizontal direction.
- the upper location of the pipe 4 allows for the convection effect to be optimised, since cool liquid within the enclosure 3 in contact with the evaporator pipe 4 will sink away from the pipe 4 .
- the liquid 3 absorbs heat from the internal volume 8 of the cabinet, the liquid rises and is then cooled again by the evaporator pipe 4 , creating a convection cycle between the evaporator pipe 4 and the bottom of the enclosure 3 .
- thermocline being set up within the liquid 12 around the level of the evaporator pipe 4 .
- the evaporator pipe 4 therefore preferably passes through an upper portion of the enclosure 3 , and more preferably as near to the top of the enclosure as practical, so as to maximise the efficiency of the thermo-siphon effect.
- a typical temperature difference ⁇ T between the contents of a temperature controlled enclosure, for example in the form of industrial batteries, and the external ambient environment of only around 15° C. can be achieved using standard 80 W diffusion absorption cycle refrigeration systems.
- the temperature of the contents of such a cabinet can vary by over 10° C. between the top and the bottom of the cabinet. Using the modifications to the cabinet described herein, this variation can be reduced to below 5° C.
- the invention also enables the refrigerator system to be used in elevated ambient temperatures (well above ‘domestic room’ temperatures) of up to 60° C., while maintaining the contents of the cabinet below 50° C. and with a reduced variation of temperature within the enclosure.
- An effective minimum ⁇ T of 15° C. can be maintained for the contents of the cabinet down to around room temperature ambient (around 20-25° C.).
- a vent may be added to the cabinet to ensure that noxious or explosive gases (such as hydrogen) are dissipated to the external environment, thus avoiding any explosive build up of gas within the cabinet, which could be generated during operation of the equipment therein.
- gases such as hydrogen
Abstract
A temperature-controllable equipment cabinet comprising a diffusion-absorption refrigeration cycle system (5), an evaporator pipe (4) of the refrigeration system extending through a wall (9) of the cabinet and passing through a sealed enclosure (3) for containing a heat transfer liquid (12), the sealed enclosure extending across and forming part of an internal surface (15) of the cabinet such that the refrigeration system in use extracts heat from within the cabinet to an external environment (7).
Description
- The invention relates generally to temperature controlled cabinets using diffusion absorption refrigeration cycle systems, in particular relating to cabinets for containing temperature-sensitive electrical and electronic equipment.
- Many items of electrical and electronic equipment have increased susceptibility to failure, malfunction or generally accelerated degradation and shortened lifespan when exposed to large variations in temperature, humidity and other ambient conditions, The problem is particularly significant for items of equipment that must be left for extended periods of time in environments that are relatively unprotected from atmospheric conditions.
- One example is items of control equipment, and in particular, the standby or backup battery power supplies thereof. Such control equipment may be found in power distribution, telecommunication, transport and security systems and may often be situated in isolated and exposed outdoor and indoor locations. Installing such equipment in an enclosure for protection from rain or other precipitation can often increase temperature variations, in that sunlight on the enclosure will tend to heat the contents of the enclosure to far higher temperatures than would otherwise be the case. Additionally, in some applications, heat emitting equipment situated close to the sensitive equipment may add to the thermal stress. Thus, there is a requirement to provide cooling or air conditioning to the most temperature sensitive items.
- In particular, battery back-up power supplies for power distribution control systems and telecommunication systems in the field have been observed to have a service life substantially lower than expected largely due to degradation caused by temperature and/or humidity variation. Solutions in the prior art have provided temperature controlled enclosures for the sensitive equipment ranging from a simple ventilated enclosure through to complete air conditioning systems. These solutions and systems incorporate technologies such as thermoelectric devices, forced convection, heat pipes, phase change material and vapour compression cycles.
- A problem to be addressed in such temperature controlled enclosures is to make them as thermally efficient as possible, whilst at the same time developing devices that have no moving components which removes the need for regular and expensive maintenance due to the failure of those components as a result of mechanical wear and tear. Components which can be removed include mechanical parts such as fans, pumps and compressors and consumables such as filters.
- An alternative refrigeration cycle or cooling mechanism to those noted which can be adapted to be used with electronic and electrical equipment is the diffusion absorption cycle. This cycle completely avoids the use of mechanical energy and instead it relies on direct thermal energy as a power source. They also use environmentally benign fluids, are reliable, silent and relatively inexpensive to build and have no moving parts. However they have a relatively low refrigeration Coefficient of Performance ('COP'), which needs to be improved so that electronic and electrical equipment such as industrial reserve power batteries can efficiently be cooled.
- Inside a conventional temperature controlled enclosure, an evaporator pipe of the diffusion absorption refrigeration cycle system extending into the enclosure has a tendency to cause a build-up of ice when the cooling system is in operation. This introduces safety issues for a cabinet containing electrical and electronic equipment. In addition, the ability of such a refrigerator system to extract heat from the cabinet is limited because the surface area of the evaporator pipe is typically small when compared to the contents of the cabinet. Simply adding a heat sink composed of a thermally conductive material to the evaporator pipe does not necessarily solve this problem, because the temperature distribution of the heat sink may not be uniform over a large surface area.
- It is an object of the invention to improve the efficiency of cooling systems for temperature controlled cabinets.
- A further object of the invention is to reduce the variation in temperature throughout the interior of temperature controlled enclosures.
- The invention provides a temperature-controllable equipment cabinet comprising a diffusion-absorption refrigeration cycle system, an evaporator pipe of the refrigeration system extending through a wall of the cabinet and passing through a sealed enclosure for containing a heat transfer liquid, the sealed enclosure extending across and forming part of an internal surface of the cabinet such that the refrigeration system in use extracts heat from within the cabinet to an external environment.
- The sealed enclosure is preferably configured to provide a ‘thermo-siphon’ effect, i.e. where a change in density of a working liquid due to temperature variation is used to generate a pumping force through convention flow, thus improving the distribution of cooling throughout the enclosure and ensuring that there is no ice build up on the evaporator pipe coming into contact with any of the contents of the enclosure.
- The enclosure may be attached to, or embedded in, the wall by various methods which include one or more of gluing, welding and mechanical fixing. The enclosure through which the evaporator pipe passes may form a part of the ceiling, floor or side wall of the enclosure. The wall may alternatively be a door of the cabinet. One or more sides of the enclosure may be made of different materials.
- The wall of the cabinet preferably comprises a layer of thermal insulation through which the evaporator pipe extends.
- The sealed enclosure is preferably substantially planar in construction, extending across the internal surface of the wall.
- The evaporator pipe preferably passes in a horizontal direction through an upper portion of the sealed enclosure when the cabinet is oriented for use such that, in use, convective flow of the heat transfer liquid aids heat transfer from within the cabinet.
- The invention enables improved temperature controlled enclosures for electrical and electronic components when used with a diffusion absorption refrigeration cycle system, leading to lower cost and greater energy efficiency and for a wider range of ambient temperatures.
- The sealed enclosure forms a thermo-siphon configured through its location and shape to optimise and improve convection around the evaporator pipe, thus effectively providing additional surface area across which to transfer heat from within the cabinet.
- Certain embodiments of the invention can be achieved through modification of an existing temperature controllable cabinet through the addition of a sealed enclosure for containing heat transfer fluid around the evaporator pipe of a diffusion-absorption refrigerator system.
- The sealed enclosure may be made from one or a limited number of pieces of material, which improves the ease of manufacture of the enclosure and the ease of installation around the evaporator pipe.
- Preferred embodiments of the invention require no moving parts, such as fans which would increase the maintenance costs of the equipment. Heat transfer from the evaporator pipe is instead effected without forced convection. Ice build-up around the evaporator pipe is also prevented, enabling electrical and electronic components within the cabinet to be safely cooled, and the temperature distribution within the cabinet made more uniform. Additional fans may, however, be used where increased heat transfer is required, though at the expense of additional maintenance cost and complexity.
- The invention will now be described by way of example, and with reference to the appended drawing in
FIG. 1 which shows a cross-sectional view of a diffusion-absorption refrigeration system. - With reference to
FIG. 1 a diffusionabsorption refrigeration system 5 is attached to a structural part of a cabinet, for example being attached to a door or awall 9 of the cabinet. Thewall 9 comprises a layer ofinsulation 10 to thermally isolate theinternal volume 8 of the cabinet from theexternal environment 7. - A
recess 14 is provided in thewall 9, for example within the layer ofinsulation 10, through which the evaporator pipe 4 passes. The recess allows thewall 9 to be kept relatively thin without unduly compromising the insulation of theinternal volume 8 of the cabinet. The recess also allows the evaporator pipe 4 to be offset from other warmer parts of the system. - The evaporator pipe 4 of the
refrigerator system 5 acts to draw heat from within the cabinet, and aheatsink 11 attached to the condenser of thesystem 5 conducts this heat to theexternal environment 7. - A liquid-filled enclosure, or thermo-
siphon 3, is attached to the inside of thewall 9, forming a sealed vessel surrounding the evaporator pipe 4. Theenclosure 3 comprises one or more filling points for introducingliquid 12 into the enclosure once it has been fixed in place around the evaporator pipe 4. The liquid filledenclosure 3 may be attached to thestructural insulation 10, or to a material enclosing the insulation, by way of welding, gluing or other mechanical fixing methods, for example atfixing points enclosure 3. - The
enclosure 3 may have one or more sides or faces in common with thestructural insulation 10 or a material enclosing the insulation, for example along aninterface 13 between the internal volume of the enclosure 6 and theinsulation 10. Theexternal surface 15 of theenclosure 3 may be in direct contact with the contents of the temperature controlled enclosure, or may act as a cooling element across theinternal wall 15 for cooling air within the cabinet. - The size of the thermo-siphon is preferably optimised to provide a balance between thermal efficiency in heat transfer, cost of manufacture, fit with the refrigeration cycle and weight of fluid. The embodiment shown illustrates a particular preferred embodiment, where the
enclosure 3 is in a substantially planar form extending across the internal surface of the wall, so as to maximise the cooling effect within the cabinet and minimise the quantity of heat transfer liquid required. - Preferably, the evaporator pipe 4 is located towards an upper end of the
enclosure 3, extending through the enclosure in a substantially horizontal direction. The upper location of the pipe 4 allows for the convection effect to be optimised, since cool liquid within theenclosure 3 in contact with the evaporator pipe 4 will sink away from the pipe 4. As theliquid 3 absorbs heat from theinternal volume 8 of the cabinet, the liquid rises and is then cooled again by the evaporator pipe 4, creating a convection cycle between the evaporator pipe 4 and the bottom of theenclosure 3. Any volume of liquid above the evaporator pipe 4, however, is not able to contribute to the convection cycle, due to a thermocline being set up within theliquid 12 around the level of the evaporator pipe 4. The evaporator pipe 4 therefore preferably passes through an upper portion of theenclosure 3, and more preferably as near to the top of the enclosure as practical, so as to maximise the efficiency of the thermo-siphon effect. - Testing has indicated that a typical temperature difference ΔT between the contents of a temperature controlled enclosure, for example in the form of industrial batteries, and the external ambient environment of only around 15° C. can be achieved using standard 80 W diffusion absorption cycle refrigeration systems. In addition, the temperature of the contents of such a cabinet can vary by over 10° C. between the top and the bottom of the cabinet. Using the modifications to the cabinet described herein, this variation can be reduced to below 5° C. The invention also enables the refrigerator system to be used in elevated ambient temperatures (well above ‘domestic room’ temperatures) of up to 60° C., while maintaining the contents of the cabinet below 50° C. and with a reduced variation of temperature within the enclosure. An effective minimum ΔT of 15° C. can be maintained for the contents of the cabinet down to around room temperature ambient (around 20-25° C.).
- Because the equipment cabinet is required to be thermally isolated from the external environment, a vent may be added to the cabinet to ensure that noxious or explosive gases (such as hydrogen) are dissipated to the external environment, thus avoiding any explosive build up of gas within the cabinet, which could be generated during operation of the equipment therein.
- Other embodiments are intentionally within the scope of the invention, as defined by the appended claims.
Claims (13)
1. A temperature-controllable equipment cabinet comprising a diffusion-absorption refrigeration cycle system, an evaporator pipe of the refrigeration system extending through a wall of the cabinet and passing through a sealed enclosure for containing a heat transfer liquid, the sealed enclosure extending across and forming part of an internal surface of the cabinet such that the refrigeration system in use extracts heat from within the cabinet to an external environment.
2. The equipment cabinet of claim 1 wherein the wall of the cabinet comprises a layer of thermal insulation through which the evaporator pipe extends.
3. The equipment cabinet of claim 2 wherein the evaporator pipe passes through a recess provided in the wall.
4. The equipment cabinet of claim 3 wherein the sealed enclosure is substantially planar in construction across the internal surface of the wall.
5. The equipment cabinet of any preceding claim 4 wherein the evaporator pipe passes in a horizontal direction through an upper portion of the sealed enclosure when the cabinet is oriented for use such that, in use, convective flow of the heat transfer liquid aids heat transfer from within the cabinet.
6. (canceled)
7. The equipment cabinet of claim 1 , wherein the evaporator pipe passes through a recess provided in the wall.
8. The equipment cabinet of claim 7 wherein the sealed enclosure is substantially planar in construction across the internal surface of the wall.
9. The equipment cabinet of claim 8 , wherein the evaporator pipe passes in a horizontal direction through an upper portion of the sealed enclosure when the cabinet is oriented for use such that, in use, convective flow of the heat transfer liquid aids heat transfer from within the cabinet.
10. The equipment cabinet of claim 1 wherein the sealed enclosure is substantially planar in construction across the internal surface of the wall.
11. The equipment cabinet of claim 10 , wherein the evaporator pipe passes in a horizontal direction through an upper portion of the sealed enclosure when the cabinet is oriented for use such that, in use, convective flow of the heat transfer liquid aids heat transfer from within the cabinet.
12. The equipment cabinet of claim 1 , wherein the evaporator pipe passes in a horizontal direction through an upper portion of the sealed enclosure when the cabinet is oriented for use such that, in use, convective flow of the heat transfer liquid aids heat transfer from within the cabinet.
13. The equipment cabinet of claim 1 wherein the heat transfer liquid includes a mixture of water and glycol.
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0709748.8 | 2007-05-22 | ||
GB0709748A GB2456741A (en) | 2007-05-22 | 2007-05-22 | Thermosiphon Enclosure Surrounding an Evaporator Pipe |
GB0709739.7 | 2007-05-22 | ||
GB0709739A GB0709739D0 (en) | 2007-05-22 | 2007-05-22 | Improvment to dispenser heat dissipation in diffusion absolption cycles |
GB0805660A GB2449522A (en) | 2007-05-22 | 2008-03-28 | Temperature controlled equipment cabinet comprising an absorption refrigerator system with an evaporator pipe located within a fluid containing enclosure |
GB0805660.8 | 2008-03-28 | ||
PCT/GB2008/001742 WO2008142412A1 (en) | 2007-05-22 | 2008-05-22 | Temperature-controlled cabinet |
Publications (1)
Publication Number | Publication Date |
---|---|
US20100154466A1 true US20100154466A1 (en) | 2010-06-24 |
Family
ID=39386918
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/601,140 Abandoned US20100154466A1 (en) | 2007-05-22 | 2008-05-22 | Temperature-controlled cabinet |
US12/601,122 Abandoned US20100242530A1 (en) | 2007-05-22 | 2008-05-22 | Condenser heatsink |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/601,122 Abandoned US20100242530A1 (en) | 2007-05-22 | 2008-05-22 | Condenser heatsink |
Country Status (6)
Country | Link |
---|---|
US (2) | US20100154466A1 (en) |
EP (1) | EP2167888A1 (en) |
BR (1) | BRPI0811899A2 (en) |
GB (2) | GB2449523A (en) |
RU (1) | RU2431088C2 (en) |
WO (2) | WO2008142412A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20190178558A1 (en) * | 2017-12-11 | 2019-06-13 | Global Cooling, Inc. | Independent Auxiliary Thermosiphon For Inexpensively Extending Active Cooling To Additional Freezer Interior Walls |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2449523A (en) * | 2007-05-22 | 2008-11-26 | 4Energy Ltd | Absorption refrigerator system comprising a condenser pipe surrounded by a tapered fluid filled enclosure |
GB2456541B (en) | 2008-01-17 | 2010-02-10 | 4Energy Ltd | Air filter |
US9593870B2 (en) | 2012-12-03 | 2017-03-14 | Whirlpool Corporation | Refrigerator with thermoelectric device for ice making |
US9175888B2 (en) | 2012-12-03 | 2015-11-03 | Whirlpool Corporation | Low energy refrigerator heat source |
JP6267250B2 (en) * | 2016-02-25 | 2018-01-24 | 株式会社Subaru | Hydraulic circuit abnormality detection device and hydraulic circuit abnormality detection method |
Citations (59)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1549990A (en) * | 1921-01-19 | 1925-08-18 | Keiths Ltd | Refrigerating apparatus |
US1778322A (en) * | 1926-12-13 | 1930-10-14 | Frigidaire Corp | Refrigerating apparatus |
US1788392A (en) * | 1924-04-30 | 1931-01-13 | Frigidaire Corp | Refrigerating apparatus |
US1914222A (en) * | 1928-04-24 | 1933-06-13 | Electrolux Servel Corp | Refrigeration |
US1946467A (en) * | 1932-03-14 | 1934-02-13 | Electrolux Servel Corp | Condenser for refrigerating apparatus |
US2027571A (en) * | 1931-10-20 | 1936-01-14 | Siemens Ag | Method for the transformation of heat |
US2044951A (en) * | 1933-02-28 | 1936-06-23 | Servel Inc | Refrigeration |
US2064233A (en) * | 1933-06-01 | 1936-12-15 | Servel Inc | Refrigeration |
US2261682A (en) * | 1937-08-10 | 1941-11-04 | Servel Inc | Refrigeration |
US2330916A (en) * | 1940-08-23 | 1943-10-05 | Nash Kelvinator Corp | Refrigerating apparatus |
US2361792A (en) * | 1940-08-23 | 1944-10-31 | Nash Kelvinator Corp | Refrigerating apparatus |
US2380121A (en) * | 1942-07-09 | 1945-07-10 | Robertson Mabel Nixon | Food storage equipment |
US2405392A (en) * | 1941-11-08 | 1946-08-06 | Gen Electric | Refrigerating apparatus |
US2455182A (en) * | 1946-11-01 | 1948-11-30 | Vallee Oscar A La | Refrigerator drawer |
US2473730A (en) * | 1947-04-23 | 1949-06-21 | John F Saye | Refrigerating means |
US2561305A (en) * | 1947-04-21 | 1951-07-17 | Alexander S Limpert | Secondary heat exchanger in refrigeration system |
US2589550A (en) * | 1943-07-14 | 1952-03-18 | Admiral Corp | Two temperature refrigerator |
US2613509A (en) * | 1948-09-22 | 1952-10-14 | Nash Kelvinator Corp | Refrigerating apparatus |
US2625378A (en) * | 1950-03-25 | 1953-01-13 | Gen Electric | Heat transfer assembly |
US2649696A (en) * | 1944-12-22 | 1953-08-25 | Electrolux Ab | Evaporating-condensing heat transfer system |
US2663159A (en) * | 1949-07-12 | 1953-12-22 | Electrolux Ab | Refrigerator employing secondary refrigeration system |
US2664716A (en) * | 1954-01-05 | Refrigeration apparatus and method employing | ||
US2690058A (en) * | 1945-04-17 | 1954-09-28 | Electrolux Ab | Condenser arrangement for absorption refrigeration apparatus |
US2697916A (en) * | 1953-06-03 | 1954-12-28 | Seeger Refrigerator Co | Multiple temperature household refrigerator and method of refrigeration |
US2702457A (en) * | 1949-02-26 | 1955-02-22 | Electrolux Ab | Evaporator structure in absorption refrigeration |
US2856163A (en) * | 1954-04-15 | 1958-10-14 | Illinois Mcgraw Electric Compa | Refrigerator condenser |
US2958210A (en) * | 1957-11-14 | 1960-11-01 | Gen Motors Corp | Refrigerating apparatus |
US2960058A (en) * | 1958-05-19 | 1960-11-15 | Magnani Enrico | Propelling device for a boat and the like |
US2962183A (en) * | 1957-11-14 | 1960-11-29 | Gen Motors Corp | Refrigerator cabinet |
US3091946A (en) * | 1958-03-27 | 1963-06-04 | Gen Motors Corp | Cabinet and process for making same |
US3468369A (en) * | 1967-04-10 | 1969-09-23 | Freez Porter Systems Inc | Process and apparatus for handling perishable materials |
US3683640A (en) * | 1969-12-04 | 1972-08-15 | Electrolux Ab | Inert gas type absorption refrigeration apparatus employing secondary refrigeration system |
US3866429A (en) * | 1973-10-10 | 1975-02-18 | Electrolux Ab | Method of freezing with the aid of a cooling arrangement having a secondary refrigeration system and primary absorption refrigeration apparatus associated therewith |
US3866431A (en) * | 1972-10-12 | 1975-02-18 | Electrolux Ab | Method of and means for freezing by a cooling arrangement embodying a secondary refrigeration system and primary absorption refrigeration apparatus associated therewith |
US3912005A (en) * | 1971-12-01 | 1975-10-14 | Kelvinator Inc | Liner assembly |
US4223535A (en) * | 1978-12-22 | 1980-09-23 | Kumm Emerson L | Absorption solar powered air conditioning system with storage capacity |
US4296613A (en) * | 1978-10-18 | 1981-10-27 | Nicholas Eber | Absorption refrigerator |
US4485639A (en) * | 1982-07-19 | 1984-12-04 | Tokyo Shibaura Kenki Kabushiki Kaisha | Cooling device for a refrigerator compressor |
US4586345A (en) * | 1983-05-18 | 1986-05-06 | Kaptan Aps | Solar energy powered system for the production of cold |
US4870735A (en) * | 1987-07-31 | 1989-10-03 | White Consolidated Industries, Inc. | Refrigeration cabinet construction |
US4922730A (en) * | 1988-02-03 | 1990-05-08 | Sibir Ag | Absorption refrigerating unit |
US5038750A (en) * | 1990-07-25 | 1991-08-13 | Carrier Corporation | Air heating apparatus |
US5038581A (en) * | 1988-11-08 | 1991-08-13 | Zeo-Tech (Zeolith Technologie Gmbh) | Sorption cooling system |
US5142872A (en) * | 1990-04-26 | 1992-09-01 | Forma Scientific, Inc. | Laboratory freezer appliance |
US5799502A (en) * | 1995-08-01 | 1998-09-01 | Sanyo Electric Co., Ltd. | Absorption type refrigerating apparatus |
US6092381A (en) * | 1997-11-08 | 2000-07-25 | Hsinlon A/C Systems Limited | Refrigerator for a motor vehicle |
US6158242A (en) * | 1999-07-12 | 2000-12-12 | Lu; Yingzhong | Gas dehydration method and apparatus |
US6442959B1 (en) * | 2000-06-28 | 2002-09-03 | Twinbird Corporation | Thermosiphon for refrigerating machine |
US6550255B2 (en) * | 2001-03-21 | 2003-04-22 | The Coca-Cola Company | Stirling refrigeration system with a thermosiphon heat exchanger |
US6581389B2 (en) * | 2001-03-21 | 2003-06-24 | The Coca-Cola Company | Merchandiser using slide-out stirling refrigeration deck |
US20040211214A1 (en) * | 1995-10-06 | 2004-10-28 | Katsumi Mabuchi | Absorption refrigerator and production method thereof |
US6845631B1 (en) * | 2003-07-15 | 2005-01-25 | Dometic Sweden Ab | Absorption refrigerator |
US20050063158A1 (en) * | 2003-09-16 | 2005-03-24 | Sgl Carbon Ag | Cooling device for electronic and electrical components |
US20050067137A1 (en) * | 2003-09-26 | 2005-03-31 | Flair Corporation | Refrigeration-type dryer apparatus and method |
US7013954B2 (en) * | 2002-01-23 | 2006-03-21 | Twinbird Corporation | Thermosiphon |
US20080060371A1 (en) * | 2006-09-08 | 2008-03-13 | John David Jude | Compact refrigeration apparatus |
US20100242530A1 (en) * | 2007-05-22 | 2010-09-30 | 4Energy Ltd. | Condenser heatsink |
US20100293989A1 (en) * | 2007-03-13 | 2010-11-25 | Sortech Ag | Compact sorption cooling unit |
US7995342B2 (en) * | 2008-09-30 | 2011-08-09 | Sanyo Electric Co., Ltd. | Display device |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE514940C (en) * | 1924-08-08 | 1930-12-22 | Platen Munters Refrigerating S | Process for generating cold according to the absorption principle |
GB303069A (en) * | 1927-12-27 | 1930-01-02 | Perfection Stove Company | |
GB384319A (en) * | 1930-05-31 | 1932-11-29 | Axel Uno Saernmark | Improvements in and relating to absorption refrigerating apparatus |
GB386475A (en) * | 1931-03-18 | 1933-01-19 | Electrolux Ltd | Improvements in or relating to refrigerating apparatus |
GB380250A (en) * | 1931-04-24 | 1932-09-15 | Johannes Hartman Jr | Improvements in absorption refrigerating apparatus |
DE1030368B (en) * | 1952-05-23 | 1958-05-22 | Saba Gmbh | Condenser in absorption refrigeration machines working with pressure equalizing auxiliary gas |
CH336085A (en) * | 1953-11-28 | 1959-02-15 | Electrolux Ab | Fridge with absorption chiller |
DE1601053A1 (en) * | 1967-11-14 | 1970-08-20 | Bauknecht Gmbh G | Cooling device |
IT1021238B (en) * | 1974-09-10 | 1978-01-30 | Vitco Patens Ag | EUTECTIC EVAPORATOR WITH FINNED COIL |
CH668633A5 (en) * | 1986-02-04 | 1989-01-13 | Nicolas Dr Sc Techn Eber | REFRIGERABLE WITH ABSORPTION COOLING UNIT. |
DK160218C (en) * | 1987-04-06 | 1991-07-15 | Soeby As Henry | SOLAR COLLECTOR ABSORPTION COOLING SYSTEM |
JPH04353371A (en) * | 1991-05-30 | 1992-12-08 | Matsushita Refrig Co Ltd | Absorption type refrigerator |
IT1290117B1 (en) * | 1997-03-18 | 1998-10-19 | Selnor | HEAT EXCHANGER AS A CONDENSER AND / OR EVAPORATOR FOR A COLD GENERATOR |
IT1305868B1 (en) * | 1998-12-15 | 2001-05-21 | Ocean Spa | CONDENSER FOR A REFRIGERATOR, A FREEZER, THEIR SIMILAR COMBINATIONS |
IT1305877B1 (en) * | 1998-12-18 | 2001-05-21 | Ocean Spa | EVAPORATOR FOR A REFRIGERATOR AND SIMILAR |
BR0100723A (en) * | 2001-02-16 | 2002-11-12 | Multibras Eletrodomesticos Sa | Condenser for refrigeration appliance |
US6517607B2 (en) * | 2001-06-04 | 2003-02-11 | Gas Technology Institute | Method and apparatus for selective removal of a condensable component from a process stream with latent heat recovery |
WO2007018994A2 (en) * | 2005-08-04 | 2007-02-15 | Liebert Corporation | Electronic equipment cabinet with integrated, high capacity, cooling system, and backup ventilation system |
-
2008
- 2008-03-28 GB GB0805661A patent/GB2449523A/en not_active Withdrawn
- 2008-03-28 GB GB0805660A patent/GB2449522A/en not_active Withdrawn
- 2008-05-22 US US12/601,140 patent/US20100154466A1/en not_active Abandoned
- 2008-05-22 US US12/601,122 patent/US20100242530A1/en not_active Abandoned
- 2008-05-22 BR BRPI0811899-0A2A patent/BRPI0811899A2/en not_active Application Discontinuation
- 2008-05-22 WO PCT/GB2008/001742 patent/WO2008142412A1/en active Application Filing
- 2008-05-22 WO PCT/GB2008/001746 patent/WO2008142414A1/en active Application Filing
- 2008-05-22 RU RU2009147441/06A patent/RU2431088C2/en not_active IP Right Cessation
- 2008-05-22 EP EP08750669A patent/EP2167888A1/en not_active Withdrawn
Patent Citations (59)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2664716A (en) * | 1954-01-05 | Refrigeration apparatus and method employing | ||
US1549990A (en) * | 1921-01-19 | 1925-08-18 | Keiths Ltd | Refrigerating apparatus |
US1788392A (en) * | 1924-04-30 | 1931-01-13 | Frigidaire Corp | Refrigerating apparatus |
US1778322A (en) * | 1926-12-13 | 1930-10-14 | Frigidaire Corp | Refrigerating apparatus |
US1914222A (en) * | 1928-04-24 | 1933-06-13 | Electrolux Servel Corp | Refrigeration |
US2027571A (en) * | 1931-10-20 | 1936-01-14 | Siemens Ag | Method for the transformation of heat |
US1946467A (en) * | 1932-03-14 | 1934-02-13 | Electrolux Servel Corp | Condenser for refrigerating apparatus |
US2044951A (en) * | 1933-02-28 | 1936-06-23 | Servel Inc | Refrigeration |
US2064233A (en) * | 1933-06-01 | 1936-12-15 | Servel Inc | Refrigeration |
US2261682A (en) * | 1937-08-10 | 1941-11-04 | Servel Inc | Refrigeration |
US2361792A (en) * | 1940-08-23 | 1944-10-31 | Nash Kelvinator Corp | Refrigerating apparatus |
US2330916A (en) * | 1940-08-23 | 1943-10-05 | Nash Kelvinator Corp | Refrigerating apparatus |
US2405392A (en) * | 1941-11-08 | 1946-08-06 | Gen Electric | Refrigerating apparatus |
US2380121A (en) * | 1942-07-09 | 1945-07-10 | Robertson Mabel Nixon | Food storage equipment |
US2589550A (en) * | 1943-07-14 | 1952-03-18 | Admiral Corp | Two temperature refrigerator |
US2649696A (en) * | 1944-12-22 | 1953-08-25 | Electrolux Ab | Evaporating-condensing heat transfer system |
US2690058A (en) * | 1945-04-17 | 1954-09-28 | Electrolux Ab | Condenser arrangement for absorption refrigeration apparatus |
US2455182A (en) * | 1946-11-01 | 1948-11-30 | Vallee Oscar A La | Refrigerator drawer |
US2561305A (en) * | 1947-04-21 | 1951-07-17 | Alexander S Limpert | Secondary heat exchanger in refrigeration system |
US2473730A (en) * | 1947-04-23 | 1949-06-21 | John F Saye | Refrigerating means |
US2613509A (en) * | 1948-09-22 | 1952-10-14 | Nash Kelvinator Corp | Refrigerating apparatus |
US2702457A (en) * | 1949-02-26 | 1955-02-22 | Electrolux Ab | Evaporator structure in absorption refrigeration |
US2663159A (en) * | 1949-07-12 | 1953-12-22 | Electrolux Ab | Refrigerator employing secondary refrigeration system |
US2625378A (en) * | 1950-03-25 | 1953-01-13 | Gen Electric | Heat transfer assembly |
US2697916A (en) * | 1953-06-03 | 1954-12-28 | Seeger Refrigerator Co | Multiple temperature household refrigerator and method of refrigeration |
US2856163A (en) * | 1954-04-15 | 1958-10-14 | Illinois Mcgraw Electric Compa | Refrigerator condenser |
US2958210A (en) * | 1957-11-14 | 1960-11-01 | Gen Motors Corp | Refrigerating apparatus |
US2962183A (en) * | 1957-11-14 | 1960-11-29 | Gen Motors Corp | Refrigerator cabinet |
US3091946A (en) * | 1958-03-27 | 1963-06-04 | Gen Motors Corp | Cabinet and process for making same |
US2960058A (en) * | 1958-05-19 | 1960-11-15 | Magnani Enrico | Propelling device for a boat and the like |
US3468369A (en) * | 1967-04-10 | 1969-09-23 | Freez Porter Systems Inc | Process and apparatus for handling perishable materials |
US3683640A (en) * | 1969-12-04 | 1972-08-15 | Electrolux Ab | Inert gas type absorption refrigeration apparatus employing secondary refrigeration system |
US3912005A (en) * | 1971-12-01 | 1975-10-14 | Kelvinator Inc | Liner assembly |
US3866431A (en) * | 1972-10-12 | 1975-02-18 | Electrolux Ab | Method of and means for freezing by a cooling arrangement embodying a secondary refrigeration system and primary absorption refrigeration apparatus associated therewith |
US3866429A (en) * | 1973-10-10 | 1975-02-18 | Electrolux Ab | Method of freezing with the aid of a cooling arrangement having a secondary refrigeration system and primary absorption refrigeration apparatus associated therewith |
US4296613A (en) * | 1978-10-18 | 1981-10-27 | Nicholas Eber | Absorption refrigerator |
US4223535A (en) * | 1978-12-22 | 1980-09-23 | Kumm Emerson L | Absorption solar powered air conditioning system with storage capacity |
US4485639A (en) * | 1982-07-19 | 1984-12-04 | Tokyo Shibaura Kenki Kabushiki Kaisha | Cooling device for a refrigerator compressor |
US4586345A (en) * | 1983-05-18 | 1986-05-06 | Kaptan Aps | Solar energy powered system for the production of cold |
US4870735A (en) * | 1987-07-31 | 1989-10-03 | White Consolidated Industries, Inc. | Refrigeration cabinet construction |
US4922730A (en) * | 1988-02-03 | 1990-05-08 | Sibir Ag | Absorption refrigerating unit |
US5038581A (en) * | 1988-11-08 | 1991-08-13 | Zeo-Tech (Zeolith Technologie Gmbh) | Sorption cooling system |
US5142872A (en) * | 1990-04-26 | 1992-09-01 | Forma Scientific, Inc. | Laboratory freezer appliance |
US5038750A (en) * | 1990-07-25 | 1991-08-13 | Carrier Corporation | Air heating apparatus |
US5799502A (en) * | 1995-08-01 | 1998-09-01 | Sanyo Electric Co., Ltd. | Absorption type refrigerating apparatus |
US20040211214A1 (en) * | 1995-10-06 | 2004-10-28 | Katsumi Mabuchi | Absorption refrigerator and production method thereof |
US6092381A (en) * | 1997-11-08 | 2000-07-25 | Hsinlon A/C Systems Limited | Refrigerator for a motor vehicle |
US6158242A (en) * | 1999-07-12 | 2000-12-12 | Lu; Yingzhong | Gas dehydration method and apparatus |
US6442959B1 (en) * | 2000-06-28 | 2002-09-03 | Twinbird Corporation | Thermosiphon for refrigerating machine |
US6550255B2 (en) * | 2001-03-21 | 2003-04-22 | The Coca-Cola Company | Stirling refrigeration system with a thermosiphon heat exchanger |
US6581389B2 (en) * | 2001-03-21 | 2003-06-24 | The Coca-Cola Company | Merchandiser using slide-out stirling refrigeration deck |
US7013954B2 (en) * | 2002-01-23 | 2006-03-21 | Twinbird Corporation | Thermosiphon |
US6845631B1 (en) * | 2003-07-15 | 2005-01-25 | Dometic Sweden Ab | Absorption refrigerator |
US20050063158A1 (en) * | 2003-09-16 | 2005-03-24 | Sgl Carbon Ag | Cooling device for electronic and electrical components |
US20050067137A1 (en) * | 2003-09-26 | 2005-03-31 | Flair Corporation | Refrigeration-type dryer apparatus and method |
US20080060371A1 (en) * | 2006-09-08 | 2008-03-13 | John David Jude | Compact refrigeration apparatus |
US20100293989A1 (en) * | 2007-03-13 | 2010-11-25 | Sortech Ag | Compact sorption cooling unit |
US20100242530A1 (en) * | 2007-05-22 | 2010-09-30 | 4Energy Ltd. | Condenser heatsink |
US7995342B2 (en) * | 2008-09-30 | 2011-08-09 | Sanyo Electric Co., Ltd. | Display device |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20190178558A1 (en) * | 2017-12-11 | 2019-06-13 | Global Cooling, Inc. | Independent Auxiliary Thermosiphon For Inexpensively Extending Active Cooling To Additional Freezer Interior Walls |
US10718558B2 (en) * | 2017-12-11 | 2020-07-21 | Global Cooling, Inc. | Independent auxiliary thermosiphon for inexpensively extending active cooling to additional freezer interior walls |
Also Published As
Publication number | Publication date |
---|---|
GB0805660D0 (en) | 2008-04-30 |
EP2167888A1 (en) | 2010-03-31 |
GB2449523A (en) | 2008-11-26 |
US20100242530A1 (en) | 2010-09-30 |
BRPI0811899A2 (en) | 2014-11-18 |
RU2009147441A (en) | 2011-06-27 |
RU2431088C2 (en) | 2011-10-10 |
GB0805661D0 (en) | 2008-04-30 |
WO2008142414A1 (en) | 2008-11-27 |
GB2449522A (en) | 2008-11-26 |
WO2008142412A1 (en) | 2008-11-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6604999B2 (en) | Electronic system cooled | |
US8369090B2 (en) | Cooled electronic system | |
US9863718B2 (en) | Explosion-proof enclosures with active thermal management by heat exchange | |
US20100154466A1 (en) | Temperature-controlled cabinet | |
US11184996B1 (en) | Double sided heat exchanger cooling unit | |
JP2013015295A (en) | Cooling device and air conditioner with same | |
US20220146122A1 (en) | Passive heat exchanger with single microchannel coil | |
JP2015127622A (en) | Electric component unit | |
US7100385B2 (en) | Thermal management system for electrical enclosures | |
US20200292213A1 (en) | Magnetocaloric device | |
JP2008163767A (en) | Electric compressor | |
JP2014207294A (en) | Electrical equipment | |
RU2474889C1 (en) | Closed system of heat-dissipating equipment cooling | |
GB2456741A (en) | Thermosiphon Enclosure Surrounding an Evaporator Pipe | |
KR100477947B1 (en) | Cooling apparatus for electronic equipment | |
JP2008175068A (en) | Electric compressor | |
CN217902325U (en) | Constant temperature device and temperature control system | |
KR200309398Y1 (en) | Cooling apparatus for electronic equipment | |
JP2008163766A (en) | Electric compressor | |
BG110877A (en) | A telecommunications cabinet with a built-in thermal chamber |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |