EP3163036A1 - Synergies fonctionnelles de cycles thermodynamiques et de sources de chaleur - Google Patents
Synergies fonctionnelles de cycles thermodynamiques et de sources de chaleur Download PDFInfo
- Publication number
- EP3163036A1 EP3163036A1 EP16191660.6A EP16191660A EP3163036A1 EP 3163036 A1 EP3163036 A1 EP 3163036A1 EP 16191660 A EP16191660 A EP 16191660A EP 3163036 A1 EP3163036 A1 EP 3163036A1
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- EP
- European Patent Office
- Prior art keywords
- cooling fluid
- branch
- heat
- fluid circuit
- heat source
- 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.)
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Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000008569 process Effects 0.000 title description 10
- 239000012809 cooling fluid Substances 0.000 claims abstract description 161
- 238000001816 cooling Methods 0.000 claims abstract description 55
- 239000012530 fluid Substances 0.000 claims abstract description 14
- 238000001704 evaporation Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000002485 combustion reaction Methods 0.000 claims description 14
- 238000012546 transfer Methods 0.000 claims description 12
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000005057 refrigeration Methods 0.000 claims description 3
- 239000007858 starting material Substances 0.000 claims description 3
- 230000008016 vaporization Effects 0.000 claims description 2
- 239000002028 Biomass Substances 0.000 claims 1
- 239000000446 fuel Substances 0.000 claims 1
- 238000005086 pumping Methods 0.000 claims 1
- 239000003570 air Substances 0.000 description 22
- 239000000498 cooling water Substances 0.000 description 14
- 238000011161 development Methods 0.000 description 14
- 230000018109 developmental process Effects 0.000 description 14
- 230000008901 benefit Effects 0.000 description 8
- 239000003990 capacitor Substances 0.000 description 8
- 230000017525 heat dissipation Effects 0.000 description 8
- 239000002918 waste heat Substances 0.000 description 7
- 239000002826 coolant Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
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- 230000002528 anti-freeze Effects 0.000 description 1
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
- F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
- F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
- F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K13/00—General layout or general methods of operation of complete plants
- F01K13/02—Controlling, e.g. stopping or starting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K15/00—Adaptations of plants for special use
- F01K15/02—Adaptations of plants for special use for driving vehicles, e.g. locomotives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
- F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
- F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
- F01K23/065—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle the combustion taking place in an internal combustion piston engine, e.g. a diesel engine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
- F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/04—Units comprising pumps and their driving means the pump being fluid-driven
Definitions
- the invention relates to a system for heat utilization comprising a heat source and a cooling device for removing heat from the heat source, the cooling device comprising: a cooler for transferring heat to an ambient medium, in particular wherein the cooler is an air cooler and the surrounding medium is air; and a thermodynamic cycle apparatus, particularly an ORC apparatus, having a working medium, an evaporator for evaporating the working medium by transferring heat of the heat source to the working medium, an expansion device for generating mechanical energy, and a condenser for condensing the working medium expanded in the expansion device. Furthermore, the invention relates to a corresponding method for removing heat from a heat source with a cooling device.
- a force-generating process such as the Organic Rankine Cycle (ORC), operated in the environment of an internal combustion engine
- ORC Organic Rankine Cycle
- the expansion engine of the ORC system can support the combustion engine drive
- the motors for drive or generators for downforce also costs and the compactness can be increased, both of which are critical factors for the integration of a force-generating process in the said environment.
- the expansion machine can also drive a generator, wherein the electrical energy generated thereby can be used to drive one or more components in the environment of the internal combustion engine.
- the hybridization is called, so the direct or indirect use of electrical energy generated in the drive train of the engine.
- one or more electric motors supplied with the generated electrical energy may be provided in a truck for driving one or more drive shafts.
- the object of the invention is to provide synergies in the use of heat from heat sources.
- the system according to the invention comprises a heat source and a cooling device for removing heat from the heat source, the cooling device comprising: a cooler for transferring heat to an ambient medium, in particular wherein the cooler is an air cooler and the surrounding medium is air; and a thermodynamic cycle device, particularly an ORC device, having a working fluid, an evaporator for evaporating the working fluid by transferring heat from the heat source to the working fluid, an expansion device for generating mechanical energy, and a condenser for condensing the working fluid expanded in the expansion device; wherein the cooling device further comprises a condenser cooling fluid circuit for removing heat from the condenser thermodynamic cycle apparatus via the radiator.
- This embodiment of the system according to the invention allows the shared use of the existing radiator for the heat dissipation from the condenser of the thermodynamic cycle device, in particular for the heat removal from the ORC capacitor.
- the cooling fluid may in particular be or comprise water, preferably with a proportion of antifreeze.
- the heat source may be, for example, an internal combustion engine.
- the system according to the invention can be further developed in that the cooling device further comprises a heat source cooling fluid circuit, wherein a first branch of the heat source cooling fluid circuit through the evaporator for transferring heat to the working medium. In this way, the heat in the cooling circuit of the heat source can be introduced into the thermodynamic cycle.
- the heat source cooling fluid circuit in the direction of flow of a cooling fluid upstream of the evaporator comprises a first branch into a second branch of the heat source cooling fluid circuit for bypassing the evaporator and a merging of the second branch with the first branch after the evaporator second branch comprises a first valve, preferably a controlled valve.
- the exit temperature of the cooling fluid is set to a higher value via the valve than in the usual operation according to the prior art. The increase in temperature results in a higher power of the thermodynamic cycle.
- the heat source cooling fluid circuit in the flow direction of the cooling fluid in front of the evaporator comprises a second branch into a third branch of the heat source cooling fluid circuit, and wherein the third branch is adapted to cooling fluid through the radiator and back into the first branch to lead, wherein the second branch preferably a second valve, in particular a three-way valve comprises.
- the second branch preferably a second valve, in particular a three-way valve comprises.
- cooling fluid can be passed directly to the radiator via the second valve. As a result, the temperature of the cooling fluid supplied to the radiator increases, the logarithmic temperature difference increases, and more heat is transferred.
- the heat source cooling fluid circuit in the flow direction of the cooling fluid downstream of the evaporator may comprise a third branch into a fourth branch of the heat source cooling fluid circuit, the fourth branch being adapted to guide cooling fluid through the cooler and back into the first branch.
- the third branch preferably comprises a third valve, in particular a three-way valve, wherein a combination of the fourth branch is provided in the third branch in combination with the previous development.
- the heat source cooling fluid circuit in the flow direction of the cooling fluid in front of the radiator comprises a merging of the third and fourth branch with the condenser cooling fluid circuit.
- a simple interconnection of the heat source cooling fluid circuit with the condenser cooling fluid circuit is provided.
- the condenser of the thermodynamic cycle device is also flowed through by relatively hot cooling fluid, which has a negative effect on the performance of the expansion device.
- the radiator may include an input header, an output header, and intermediate channels interconnecting respective opposite portions of the input header and the output header, one input of the condenser cooling fluid loop into the input header and an input of the third and fourth Branches of the heat source cooling fluid circuit are spaced apart in the input header, in particular at respective end portions of the input header are arranged, and wherein an output of the condenser cooling fluid circuit from the output collector and an output of the third and fourth branch of the heat source cooling fluid circuit from the output collector are spaced from each other, in particular at respective End regions of the output collector are arranged, wherein the input and output of the condenser cooling fluid circuit and the heat source cooling fluid circuit are arranged at respectively opposite areas of the input collector and the output collector.
- the capacitor as low as possible temperature can be made available and the discharge of excess heat of the cooling fluid of the heat source to a high temperature level happen, which has a positive effect on the heat dissipation through the radiator to the environment.
- the distribution of the mass flows in partial mass flows to the terminals of the input collector and thus also through the radiator surface is preferably carried out via the second and / or third valve. Adjusting the proportions of the hot or cold radiator surface takes place automatically in this interconnection depending on the partial mass flows.
- the cooling device further comprises at least one heat exchanger for transferring heat in exhaust gas of the heat source to the heat source cooling fluid circuit.
- the heat in the exhaust gas of the heat source can be used.
- the sound-absorbing property of a Abgasebenstedtragers can be used to reduce the actual muffler or completely replace.
- Other sources of heat that can be used are other heat fluxes bound to mass flows, such as e.g. hot gas mass flows.
- the system further comprises a generator, with the mechanical energy generated by the expansion device in electrical Energy is convertible.
- the generated electrical energy may be used to operate electrical components in the system or to be fed into an electrical grid.
- mechanical energy generated by the expansion device can be used via a respective electrical, mechanical or hydraulic coupling for (a) driving a fan of the condenser and / or a fan of the radiator; and / or (b) driving a circulation pump in the heat source cooling fluid circuit and / or a feed pump of the thermodynamic cycle device and / or a circulation pump in the condenser cooling fluid circuit and / or a water pump and / or a hydraulic pump and / or an oil pump; and / or (c) driving an alternator and / or starter of the system; and / or (d) driving a refrigeration compressor of an air conditioner; and or (e) coupling the mechanical energy generated by the expansion device in a drive train of an internal combustion engine as a heat source, in particular directly to a drive shaft.
- This will provide further synergies in the system.
- a partial flow of the vaporized working medium can be used by means of a further expansion machine for driving a fan of the condenser and / or a fan of the radiator. This minimizes conversion losses.
- heat from condensed working medium and / or from the heat source cooling fluid circuit can be decoupled for feeding into a further heat sink.
- heat can be coupled out, for example, in heating networks, particularly advantageous are low-temperature heat sinks, such as dryers, floor or surface heating or air heaters.
- the method according to the invention is suitable for removing waste heat from a heat source with a cooling device
- the cooling device comprises a cooler, a thermodynamic cycle device, in particular an ORC device with a working medium, an evaporator, an expansion device and a condenser and a condenser cooling fluid circuit
- the method comprises the steps of: transferring heat to an ambient medium with the radiator, wherein in particular the radiator is an air cooler and the surrounding medium is air; Vaporizing the working medium with the evaporator by transferring waste heat from the heat source to the working medium; Generating mechanical energy with the expansion device; and condensing the working medium expanded in the expansion device with the condenser; and the method is characterized by removing heat from the condenser of the thermodynamic cycle apparatus via the radiator.
- the following further steps are carried out: passing a first branch of a heat source cooling fluid circuit through the evaporator for transferring heat to the working medium; and first branching a cooling fluid in the heat source cooling fluid circuit upstream of the evaporator into a second branch of the heat source cooling fluid circuit for bypassing the evaporator and merging the second branch with the first branch after the evaporator.
- Another development is that the following further steps are performed: second branching of the cooling fluid upstream of the evaporator into a third branch of the heat source cooling fluid circuit, the third branch leading cooling fluid through the radiator and back into the first branch; and / or third branching the cooling fluid downstream of the evaporator into a fourth branch of the heat source cooling fluid circuit, the fourth branch carrying cooling fluid through the radiator and back into the first branch; the cooler comprising an input header, an output header, and intermediate channels each having interconnecting opposite portions of the input header and the output header, and wherein an input of the condenser cooling fluid circuit into the input header and an input of the third and fourth branch of the heat source cooling fluid circuit are spaced from each other in the input header, in particular at respective end portions an input of the condenser cooling fluid circuit are spaced from the output collector and an output of the third and fourth branch of the heat source cooling fluid circuit from the output collector, in particular at respective end portions of the output collector, wherein the input and output the condenser cooling fluid circuit and the heat source cooling fluid circuit
- the invention further provides a cooling device and a corresponding method for operating the cooling device.
- the cooling device comprises: a first cooling fluid circuit, a second cooling fluid circuit and a cooler having an input collector, an output collector, and intermediate channels connecting respective opposite regions of the input collector and the output collector, wherein an input of the first cooling fluid circuit into the input collector and an input of the second cooling fluid circuit is spaced from the input manifold, in particular at respective end portions of the input manifold, and wherein an output of the first cooling fluid circuit from the output manifold and an output of the second cooling fluid circuit are spaced from the output manifold, particularly at respective end portions of the output manifold are arranged, wherein the input and output of the first cooling fluid circuit and the second cooling fluid circuit at respective opposite portions of the matterssa mmlers or the output collector are arranged.
- a controllable valve is provided in the first cooling fluid circuit and / or a controllable valve in the second cooling fluid circuit.
- the radiator may preferentially receive heat from the first and second cooling fluid circuits Transfer cooling medium, wherein the cooling medium may include, for example, water or air.
- the method according to the invention for operating the cooling device comprises performing the following steps: guiding a first cooling fluid in the first cooling fluid circuit into the inlet of the first cooling fluid circuit into the inlet header of the cooler; Passing a second cooling fluid in the second cooling fluid circuit into the inlet of the second cooling fluid circuit into the inlet header of the radiator; Guiding the first cooling fluid out of the exit of the first cooling fluid circuit from the radiator; and directing the second cooling fluid out of the exit of the first cooling fluid circuit from the radiator.
- the first and second cooling fluids have the same composition.
- the existing radiator surface into a high-temperature region (cooling fluid of the first cooling fluid circuit) and a low-temperature region (cooling fluid of the second cooling fluid circuit) is made possible.
- the distribution of the mass flows in partial mass flows to the terminals of the input collector (ie the respective inputs of the first and second cooling fluid circuit) and thus the distribution of (partial) mass flows through the radiator surface is preferably carried out via one or more valves in the first and / or second cooling fluid circuit.
- the adaptation of the proportions of the hot or cold radiator surface takes place independently as a function of the partial mass flows.
- thermodynamic cycle device - such as an ORC system -
- an ORC system for heat removal from the ORC capacitor.
- moderate load such as moderate outside temperatures
- Moderate load operation has the largest amount of time in most cooling systems.
- cooling fluid cooling water
- the cooler is provided by way of example only as an air cooler, so that waste heat is transferred to air.
- another medium such as water
- Fig. 1 shows a first embodiment of the system according to the invention in the form of a drive system.
- the drive system 100 comprises in this embodiment an internal combustion engine 10 and a cooling device for removing waste heat from the internal combustion engine, the cooling device comprising: an air cooler 20 for transferring heat to air; and an ORC device 30 with a working medium, an evaporator 31 for evaporating the working medium by transferring waste heat of the internal combustion engine 10 to the working medium, an expansion device 32 for generating mechanical energy (which is converted here by way of example via a generator G into electrical energy) and a condenser 33 for condensing the working medium expanded in the expansion device 32; wherein the cooling device further comprises a condenser cooling fluid circuit 40 for removing heat from the condenser 33 of the thermodynamic cycle apparatus via the radiator 20.
- the cooling device further comprises a condenser cooling fluid circuit 40 for removing heat from the condenser 33 of the thermodynamic cycle apparatus via the radiator 20.
- the cooling device further includes an engine cooling fluid circuit 50, wherein a first branch 51 of the engine cooling fluid circuit 50 is through the Evaporator 31 leads to the transfer of heat to the working medium.
- the engine cooling fluid circuit comprises, in the flow direction of the cooling water before the evaporator, a first branch 81 into a second branch 52 of the engine cooling fluid circuit 50 for bypassing the evaporator 31 and a merging 91 of the second branch 52 with the first branch 51 downstream of the evaporator 31, wherein the second branch 52 comprises a controlled valve 71, for example with a thermostat.
- the outlet temperature of the engine cooling water (MKW) via the controlled valve (in particular thermostatic valve) 71 is driven to about 110 ° C.
- the MKW outlet temperature is lower, in the range of 80 ° C.
- the coupling of the energy can also be done directly (mechanically or hydraulically), as with all subsequent interconnections.
- the system 100 has no run-flat capability in the event of ORC failure or insufficient heat dissipation.
- the ORC process 30 is at the limit of its heat absorption or is not operating, the water circuit 50 heats up and the engine 10 overheats or is downshifted by an engine control.
- Fig. 2 shows a second embodiment of the drive system according to the invention.
- Like reference numerals designate the same components as in FIG Fig. 1 , In the following, only the additional components will be described.
- the engine cooling fluid circuit 50 includes, in the flow direction of the cooling fluid upstream of the evaporator 31, a second branch 82 into a third branch 53 of the engine cooling fluid circuit 50, the third branch 53 being adapted to provide cooling fluid through the radiator 20 and back into the radiator first branch 51, wherein the second branch 82 comprises a second valve 72, for example a three-way valve 72. If the heat transfer capacity of the radiator 20 is insufficient, water can be passed directly to the radiator 20 via the second valve 72.
- the engine cooling fluid circuit 50 has, in the flow direction of the cooling fluid downstream of the evaporator 31, a third branch 83 into a fourth branch 54 of the engine cooling fluid circuit 50, the fourth branch 54 leading cooling water through the radiator 20 and back into the first branch 51 the third branch 83 has a third valve 73, in particular a three-way valve 73, wherein a junction 94 of the fourth branch 54 is provided in the third branch 53.
- the engine cooling fluid circuit 50 comprises in the flow direction of the cooling fluid in front of the radiator 20 a merging 95 of the third and fourth branches 53, 54 with the condenser cooling fluid circuit 40.
- An emergency running capability is provided via the 3-way valves 72 and 73, respectively.
- the average temperature at the entrance of the radiator 20 decreases (due to the merging 95 of the engine cooling fluid circuit 50 and the condenser cooling fluid circuit 40), which adversely affects the heat transfer capacity resulting from the logarithmic temperature difference between the heat absorber and the heat dissipator Medium is determined. If the heat transfer capacity of the radiator 20 is insufficient and / or if there is no or insufficient cooling of the engine cooling water in the evaporator 31, then Motokühlwasser is passed directly to the radiator 20 via one of the two valves 72 or 73 or by the actuation of both valves.
- Fig. 3 shows one opposite Fig. 2 modified embodiment 210 of the system according to the invention.
- a pump P4 instead of the second valve 72 is here a pump P4 and instead of the third valve 73, a pump P5 is provided. Both pumps serve to control the mass flow to the radiator 20 and are thus controllable pumps.
- the pump P3 can be made adjustable. This can be regulated depending on the pump P4, the pump P5 or the corresponding 3-way valve. The aim of this measure is to improve the heat dissipation of the heat exchanger 20 and / or to minimize the auxiliary energy expenditure for the pumps.
- control can be realized, for example, by maps or parametric tables are stored in the plant control that control the speed of the pump P3.
- the ORC process including the pump P3 is switched off.
- a backstop can be provided in front of the pump P3.
- Fig. 4 shows a third embodiment of the drive system according to the invention.
- Like reference numerals designate the same components as in FIG Fig. 1 and 2 , In the following, only the additional components will be described.
- the cooler 20 has an input header 21, an output header 25, and has intermediate channels connecting respective opposite portions of the input header 21 and the output header 25, one input 22 of the condenser cooling fluid circuit 40 are arranged in the input header 21 and an inlet 23 of the third branch 53 of the engine cooling fluid circuit 50 in the input header 21 at respective end portions of the input header 21, and wherein an output 26 of the condenser cooling fluid circuit 40 from the output header 25 and an output 27 of third branch 53 of the engine cooling fluid circuit 50 from the output manifold 25 are disposed at respective end portions of the output manifold 25, wherein the input 22, 23 and output 26, 27 of the condenser cooling fluid circuit 40 and the engine cooling fluid circuit 50 at respectively s opposite areas of the input collector 21 and the output collector 25 are arranged.
- MKW engine cooling water
- ORC capacitor return to the ORC capacitor
- a portion of the MKW mass flow may be passed through the ORC 30 and a portion cooled directly against air, as described for the second embodiment.
- the third embodiment provides a solution to realize the simplest possible way a division of the two partial streams on the surface of the radiator and adjust this distribution depending on the operating state advantageous.
- the requirements here are that most of the heat is conducted through the ORC in order to maximize the efficiency of the overall system. Furthermore, it is particularly advantageous to use the lowest temperature for cooling the capacitor in order to ensure a higher efficiency of the ORC process. In addition, suitable return temperatures for the engine must be maintained. Although this would be realized by structurally or hydraulically separate cooler, but then available for the respective mass flows areas are fixed, but this does not fit to different load points.
- the distribution of the mass flow in the branch 82 and 83 takes place by means of the valve 72 or 73. This passes depending on the temperature or another characteristic value a partial flow of the MKW to the radiator 20.
- the temperature limit depends on whether the variant with valve 72 or 73 is present. For example, upon reaching a maximum cooling water temperature, valve 72 would switch the flow toward radiator 20 and bypass the ORC.
- the valve 73 directs the cooling water in the direction of the radiator 20 when a required cooling is not achieved.
- Fig. 5 shows a fourth embodiment of the drive system according to the invention.
- Like reference numerals designate the same components as in FIG Fig. 1 to 3 , In the following, only the additional components will be described.
- a further branch is provided in front of the radiator 20 in relation to the third embodiment 300 to pass hot cooling fluid over a heat sink 110 to otherwise utilize a portion of the heat, for example for heating purposes.
- a further cooling circuit at a further temperature level eg cooling circuit for the intercooler, LLK
- a heat exchanger W heat dissipation of the charge air cooling circuit
- the heat exchanger W can be connected in series with the heat exchanger 20 on the air side ( Fig. 6 ), and the cooling air or other cooling medium can first passed through the heat exchanger W and then through the heat exchanger 20.
- a parallel flow is possible ( Fig. 7 ).
- ORC circuit is not shown here for simplicity, a connection with the ORC circuit is only hinted at in this variant.
- Another advantage is that only one pump is needed to flow through the condenser and the radiator 20.
- the channels are connected via the collector, the same pressure loss prevails over all channels, so that the volume flow increases through the channels through which the second mass flow flows.
- the second mass flow remains constant, then the number of channels must be reduced, so that more area is available for the larger first mass flow and the pressure losses are correspondingly adjusted.
- the available heat exchanger surface of the cooler 20 is advantageously used in the best possible way. Compared to the (previously described) mixing of the temperatures of two partial streams significantly lower temperatures can be achieved on the cold side.
- This has advantages in the operation of an ORC but also for all other applications where two temperature levels are to be recooled via a circuit, as is the case, for example, with stationary engines for cooling the engine cooling water and the charge air.
- the proposed interconnection can heat at the highest possible Temperature difference are dissipated to the environment, resulting in a reduction of the auxiliary energy demand, and the lower-temperature flow rate is cooled to lower temperatures than when mixing the two volume flows.
- the device can be provided as shown in a cooler but also by the connection of any number of coolers by means of pipelines.
- FIGS. 11 and 12 explain the operation and advantages of the interconnection according to the third and fourth embodiments in comparison with the second embodiment in TQ diagrams (T: temperature, Q: heat flow).
- Fig. 11 shows an example of the cooling of the water mass flow of 90 ° C, the hotter of the two heat sources allows a temperature of 115 ° C. It is achieved a recooling temperature of the water of 70 ° C.
- the first 115 ° C mass flow enters the radiator and is cooled down to 88 ° C in this example, which temperature is set when 20% of the total mass flow passing through the radiator is at a high temperature level.
- this amount of heat can be transmitted with a flow temperature of hot water of 84 ° C and a return temperature of 65 ° C, which means a lower by 5 K return temperature.
- This is accompanied by performance enhancement of the ORC or improvement of heat transfer in other components (charge air cooler etc.).
- the propulsion system can be further developed with regard to further synergies associated with Fig. 13 and each of which can be used individually or in combination.
- the mechanical energy generated by the expansion device may be usable via a respective electrical, mechanical or hydraulic coupling for (a) driving a fan of the condenser 30 and / or a fan of the radiator; and / or (b) driving a circulation pump 101 in the engine cooling fluid circuit and / or a feed pump 102 of the thermodynamic cycle device and / or a circulation pump 103 in the condenser cooling fluid circuit and / or a water pump and / or a hydraulic pump and / or an oil pump; and / or (c) driving an alternator 105 and / or a starter of the drive system; and / or (d) driving a refrigeration compressor 106 of an air conditioner.
- a partial flow of the vaporized working medium may be used to drive a fan of the condenser and / or a fan 107 of the radiator. This minimizes conversion losses. Furthermore, heat may be extracted from condensed working fluid and / or from the engine cooling fluid circuit for delivery to a heater.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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CN201680075472.0A CN108431376B (zh) | 2015-10-21 | 2016-10-06 | 热力循环和热源的功能协同效应 |
US15/767,930 US10577984B2 (en) | 2015-10-21 | 2016-10-06 | Functional synergies of thermodynamic cycles and heat sources |
BR112018007922-7A BR112018007922B1 (pt) | 2015-10-21 | 2016-10-06 | Sistema de utilização de calor, e método de descarga de calor de uma fonte de calor por meio de um dispositivo de resfriamento |
PCT/EP2016/073846 WO2017067790A1 (fr) | 2015-10-21 | 2016-10-06 | Synergies fonctionnelles de cycles thermodynamiques et de sources de chaleur |
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EP15190780.5A EP3159506B1 (fr) | 2015-10-21 | 2015-10-21 | Synergies fonctionnelles lors de l'integration de systeme orc dans des moteurs a combustion interne |
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EP3163036A1 true EP3163036A1 (fr) | 2017-05-03 |
EP3163036B1 EP3163036B1 (fr) | 2018-09-26 |
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EP16191660.6A Active EP3163036B1 (fr) | 2015-10-21 | 2016-09-30 | Synergies fonctionnelles de cycles thermodynamiques et de sources de chaleur |
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US (1) | US10577984B2 (fr) |
EP (2) | EP3159506B1 (fr) |
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WO (1) | WO2017067790A1 (fr) |
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EP3530890B1 (fr) * | 2018-02-27 | 2022-10-12 | Orcan Energy AG | Entraînement pourvu d'un orc intégré |
JP7099392B2 (ja) * | 2019-04-03 | 2022-07-12 | トヨタ自動車株式会社 | 車載温調装置 |
SE543339C2 (en) | 2019-04-11 | 2020-12-08 | Scania Cv Ab | Waste Heat Recovery System, Powertrain, and Vehicle |
WO2020213773A1 (fr) * | 2019-04-17 | 2020-10-22 | 비아이피 주식회사 | Système de production d'énergie de navire utilisant un cycle de rankine organique ayant un rendement de production d'énergie amélioré |
SE543454C2 (en) * | 2019-06-13 | 2021-02-23 | Scania Cv Ab | Thermal Management System, Method of Cooling a Condenser of a Waste Heat Recovery System, and Related Devices |
CN111810268B (zh) * | 2020-08-11 | 2024-06-07 | 四川大学 | 热端恒温导热型余热发电装置 |
FR3121554B1 (fr) | 2021-03-31 | 2023-03-03 | Ifp Energies Now | Système et procédé de refroidissement d’une pile à combustible |
CN113107622B (zh) * | 2021-04-27 | 2022-07-12 | 中国能源建设集团广东省电力设计研究院有限公司 | 一种高效布雷顿-朗肯循环柔性发电系统 |
CN115013220B (zh) * | 2022-06-30 | 2023-10-13 | 中国电建集团华东勘测设计研究院有限公司 | 基于中深层干热岩的紧凑型地热能压缩空气储能系统、方法 |
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WO2011128360A1 (fr) * | 2010-04-13 | 2011-10-20 | Behr Gmbh & Co. Kg | Moteur à combustion interne |
US20130312418A1 (en) * | 2011-02-25 | 2013-11-28 | Zoltan Kardos | System for converting thermal energy to mechanical energy in a vehicle |
DE102012021327A1 (de) * | 2012-10-26 | 2014-01-23 | Voith Patent Gmbh | Förderanlage für Öl oder Gas |
DE102012022648A1 (de) * | 2012-11-20 | 2014-05-22 | Daimler Ag | Vorrichtung zum Schmieren einer Einrichtung eines Kraftfahrzeugs mit einer ionischen Flüssigkeit als Schmiermittel und Verfahren zum Betrieb einer solchen Vorrichtung |
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WO2008106774A1 (fr) * | 2007-03-02 | 2008-09-12 | Victor Juchymenko | Système à cycle de rankine organique commandé pour récupérer et convertir de l'énergie thermique |
EP2284458A4 (fr) * | 2008-05-01 | 2011-11-23 | Sanden Corp | Dispositif d'utilisation de la chaleur residuelle pour moteur a combustion interne |
US20100326076A1 (en) * | 2009-06-30 | 2010-12-30 | General Electric Company | Optimized system for recovering waste heat |
JP5621721B2 (ja) * | 2011-06-30 | 2014-11-12 | 株式会社豊田自動織機 | ランキンサイクル |
US20150252692A1 (en) | 2012-08-03 | 2015-09-10 | Tri-O-Gen Group B.V. | System for Recovering Through an Organic Rankine Cycle (ORC) Energy From a Plurality of Heat Sources |
DE102013011519A1 (de) | 2013-07-09 | 2015-01-15 | Volkswagen Ag | Wärmetauschvorrichtung und Antriebseinheit für ein Kraftfahrzeug |
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2015
- 2015-10-21 EP EP15190780.5A patent/EP3159506B1/fr active Active
-
2016
- 2016-09-30 EP EP16191660.6A patent/EP3163036B1/fr active Active
- 2016-10-06 WO PCT/EP2016/073846 patent/WO2017067790A1/fr active Application Filing
- 2016-10-06 US US15/767,930 patent/US10577984B2/en active Active
- 2016-10-06 CN CN201680075472.0A patent/CN108431376B/zh active Active
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WO2011128360A1 (fr) * | 2010-04-13 | 2011-10-20 | Behr Gmbh & Co. Kg | Moteur à combustion interne |
US20130312418A1 (en) * | 2011-02-25 | 2013-11-28 | Zoltan Kardos | System for converting thermal energy to mechanical energy in a vehicle |
DE102012021327A1 (de) * | 2012-10-26 | 2014-01-23 | Voith Patent Gmbh | Förderanlage für Öl oder Gas |
DE102012022648A1 (de) * | 2012-11-20 | 2014-05-22 | Daimler Ag | Vorrichtung zum Schmieren einer Einrichtung eines Kraftfahrzeugs mit einer ionischen Flüssigkeit als Schmiermittel und Verfahren zum Betrieb einer solchen Vorrichtung |
EP2789812A1 (fr) * | 2013-04-08 | 2014-10-15 | FPT Motorenforschung AG | Système turbo-combiné |
US20150276284A1 (en) * | 2014-03-31 | 2015-10-01 | Mtu Friedrichshafen Gmbh | Cooling device for a condenser of a system for a thermodynamic cycle, system for a thermodynamic cycle, arrangement with an internal combustion engine and a system, vehicle, and a method for carrying out a thermodynamic cycle |
Also Published As
Publication number | Publication date |
---|---|
EP3159506B1 (fr) | 2020-08-19 |
BR112018007922A2 (pt) | 2018-10-30 |
CN108431376A (zh) | 2018-08-21 |
EP3163036B1 (fr) | 2018-09-26 |
WO2017067790A1 (fr) | 2017-04-27 |
US10577984B2 (en) | 2020-03-03 |
EP3159506A1 (fr) | 2017-04-26 |
US20180313234A1 (en) | 2018-11-01 |
CN108431376B (zh) | 2020-06-16 |
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