JP2009085060A - Rankine cycle system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a Rankine cycle system increase the system efficiency independently of an outside air temperature. <P>SOLUTION: The Rankine cycle system (10) mounted on a vehicle (1) is provided with: a media path (11) to circulate a medium therein; an evaporator (12) to vaporize the medium by exhaust heat of an engine mounted on the vehicle; an expander (13) to generate a rotational energy from the vaporized medium; a condenser (14) to condense and liquefy the vaporized medium; and a pump (15) to circulate the liquefied medium, wherein the condenser is disposed rearward of the vehicle interior to perform heat exchange using the air in the vehicle interior. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a configuration of a condenser in a Rankine cycle system that generates energy using waste heat of a vehicle engine.

  Conventionally, a Rankine cycle heat engine (Rankine cycle system) is known in which a liquid as a medium is vaporized by heat, and energy is extracted by the vaporized medium. There is also known a system in which this Rankine cycle system is mounted on a vehicle and energy is extracted using exhaust heat from the engine of the vehicle. The exhaust heat from the engine uses cooling water or the like to acquire heat from the engine or the exhaust pipe, and supplies the heat to the evaporator to heat the medium. In addition, heat is exchanged by cooling the condenser using traveling air outside the passenger compartment, and the medium is liquefied.

On the other hand, in an automotive air conditioner that adjusts the air conditioning in the passenger compartment by means of a refrigeration cycle, the automotive air configured to use not only the traveling wind but also the exhaust of the passenger compartment for cooling the heat exchanger that performs heat exchange of the medium Harmonic devices are known (see Patent Document 1 and Patent Document 2).
JP 2005-225330 A JP 2005-162158 A

  As described above, when the Rankine cycle system is mounted on the vehicle, the condenser is cooled by air outside the passenger compartment. In this case, since the heat exchange efficiency of the condenser depends on the outside air temperature, especially when the outside air temperature is high, such as in summer, the heat exchange of the condenser is not sufficiently performed, and the efficiency of the Rankine cycle system becomes low. There was a problem.

  The present invention has been made paying attention to such problems, and an object of the present invention is to provide a Rankine cycle system that can increase the efficiency of the system without depending on fluctuations in the temperature of the outside air.

  In the Rankine cycle system mounted on a vehicle, the invention according to claim 1 includes a medium path through which the medium circulates, an evaporator that vaporizes the medium by exhaust heat of an engine mounted on the vehicle, and the vaporized medium. An expander that generates rotational energy; a condenser that condenses and liquefies the vaporized medium; and a pump that circulates the liquefied medium. The heat exchange is performed using the air in the passenger compartment.

  The invention according to claim 2 is the invention according to claim 1, wherein the condenser is arranged on the rear side of the passenger compartment, and at least one of air in the passenger compartment and traveling wind outside the passenger compartment is converted into a condenser. It arrange | positions at the ventilation duct comprised so that it may ventilate, It is characterized by the above-mentioned.

  According to a third aspect of the present invention, in the first aspect of the invention, the evaporator, the expander, the condenser and the pump are arranged as one unit on the rear side of the vehicle compartment and in the vicinity of the condenser. It is characterized by that.

  According to a fourth aspect of the present invention, in the first aspect of the present invention, the vehicle includes an air conditioner that adjusts an air temperature in the passenger compartment, and the air conditioner cools the air temperature at the rear side of the passenger compartment of the vehicle. An evaporator is provided, and the condenser is disposed on a rear side of the passenger compartment of the vehicle, and is disposed in a blower duct configured to blow air that has passed through the evaporator to at least one of the passenger compartment and the condenser. Features.

  According to a fifth aspect of the present invention, in the first aspect of the present invention, the vehicle introduces at least one of air inside the vehicle interior and air outside the vehicle interior, and heats or cools the introduced air to front the vehicle. A first air conditioner for adjusting the air temperature in the vehicle interior of the vehicle and at least one of air in the vehicle interior of the vehicle and air outside the vehicle interior, and heating or cooling the introduced air to A second air conditioner that adjusts the indoor air temperature, and the condenser is disposed on the rear side of the passenger compartment and is cooled by the second air conditioner to at least one of the passenger compartment and the condenser. It arrange | positions at the ventilation duct which ventilates, It is characterized by the above-mentioned.

  According to the first aspect of the present invention, the condenser is disposed on the rear side of the passenger compartment and performs heat exchange using the air in the passenger compartment. Therefore, by using the exhaust from the passenger compartment, A large temperature difference from the medium to be cooled can be obtained, and the heat exchange efficiency of the condenser can be increased.

  According to the second aspect of the present invention, since at least one of the air in the passenger compartment and the traveling wind outside the passenger compartment is blown to the condenser, the air in the passenger compartment having a large temperature difference and the traveling wind outside the passenger compartment having a large flow rate are supplied. Thus, the heat exchange efficiency of the condenser can be increased.

  According to the third aspect of the present invention, the evaporator, the expander, the condenser, and the pump are arranged as one unit on the rear side of the passenger compartment, so that the use efficiency of the vehicle space can be improved.

  According to the invention described in claim 4, since the air that has passed through the evaporator is blown to at least one of the vehicle interior and the condenser, the air having a large temperature difference that has passed through the evaporator and the air outside the vehicle compartment having a large flow rate, The heat exchange efficiency of the condenser can be increased.

  According to the invention described in claim 5, since the air cooled by the second air conditioner is blown to at least one of the passenger compartment and the condenser, the air cooled by the second air conditioner and having a large temperature difference; The heat exchange efficiency of the condenser can be increased by the air outside the passenger compartment having a large flow rate.

<First Embodiment>
Below, Rankine cycle system 10 carried in vehicles 1 of a 1st embodiment of the present invention is explained using a drawing.

  FIG. 1 is a configuration diagram of a Rankine cycle system 10 according to a first embodiment of this invention.

  The Rankine cycle system 10 includes a medium path 11 through which the medium circulates, an evaporator 12 that vaporizes the medium using heat from the cooling water of the vehicle, an expander 13 that generates rotational energy by the vaporized medium, and a vaporization The condenser 14 that condenses and liquefies the liquefied medium, and the pump 15 that circulates the liquefied medium. In this embodiment, R134a is used as the medium, but other mediums may be used.

  In FIG. 1, the medium path 11 shows a path through which the vaporized medium circulates as a chain line and a path through which the liquefied medium circulates as a solid line.

  The expander 13 shares its rotating shaft with the generator 16. Thereby, the rotational energy of the expander 13 is transmitted to the generator 16, and the generator 16 is generated.

  With this configuration, Rankine cycle system 10 of the present embodiment converts thermal energy obtained from engine exhaust heat of vehicle 1 into rotational energy, and converts this rotational energy into electrical energy. Electric energy is stored in a capacitor (not shown). Note that the capacitor is constituted by, for example, a battery or a capacitor.

  The engine cooling system 20 centering on the engine 25 that drives the vehicle 1 is configured by a cooling water path 21 through which cooling water circulates and a radiator 22 that releases heat to the atmosphere. The radiator 22 is provided with a fan 29.

  Further, in the cooling water path 21, a part of the cooling water passes through the exhaust heat recovery unit 26 provided between the catalyst 25 of the exhaust pipe 23 and the silencer 27 from the engine 25, and the evaporator 12 of the Rankine cycle system 10. Configured to send to. That is, the cooling water that has absorbed the heat generated by the engine 25 and the heat generated in the exhaust pipe 23 is sent to the evaporator 12. The evaporator 12 heats the medium by the heat of the cooling water, whereby the medium is vaporized.

  Further, a part of the cooling water passage 21 is configured to send the cooling water that has absorbed the heat of the engine 25 to the heater 28.

  In the present embodiment, the cooling water that has absorbed the heat of the engine 25 is configured to absorb the heat of the exhaust pipe 23 by the exhaust heat recovery device 26 and send it to the evaporator 12, but this configuration may not be used. . For example, only the cooling water that has absorbed the heat of the engine 25 may be sent to the evaporator 12. Further, a cooling water flow path different from the engine cooling system 20 may be provided, and only the heat of the exhaust heat recovery unit 26 may be sent to the evaporator 12 using a pump or the like.

  Here, in the Rankine cycle system 10, the condenser 14 condenses the vaporized medium by exchanging heat with the medium to liquefy the refrigerant. Conventionally, the condenser 14 is disposed on the front side of the vehicle similarly to the radiator 22 of the engine cooling system 20, and performs heat exchange by releasing heat to the atmosphere by traveling wind or the like. However, the outside air temperature varies depending on the season. In the engine room, the heat of the engine convects. Therefore, when the outside air temperature becomes high such as in summer, there is a problem that heat exchange of the condenser 14 is not sufficiently performed, heat exchange efficiency is lowered, and Rankine cycle efficiency is lowered.

  Therefore, in the first embodiment of the present invention, the condenser 14 is configured as described below.

  FIG. 2 is a configuration diagram of the vehicle 1 equipped with the Rankine cycle system according to the first embodiment of the present invention.

  The vehicle 1 is equipped with a Rankine cycle system 10, an engine cooling system 20, and a refrigeration cycle system 30.

  The refrigeration cycle system 30 includes a compressor 32, a condenser 33, a liquid tank 34, an expansion valve 35, and an evaporator 36 provided on the vehicle front side in a circulation path 31 through which the refrigerant is circulated. These constitute an air conditioner 30a that adjusts the air temperature on the front side of the vehicle. In general, R134a is used as the refrigerant.

  The compressor 32 compresses the refrigerant and sends it to the capacitor 33 as a high-temperature and high-pressure refrigerant. The condenser 33 condenses and liquefies the refrigerant. The liquid tank 34 gas-liquid separates the refrigerant and sends only the liquid phase refrigerant to the expansion valve 35. The expansion valve 35 vaporizes the liquid-phase refrigerant by expanding it and sends it to the evaporator 36 as a low-temperature and low-pressure refrigerant. The evaporator 36 heat-exchanges the delivered low-temperature refrigerant and the air passing through the evaporator 36 to cool the air. The blower fan 37 sends the air outside the vehicle interior or the air inside the vehicle interior to the vehicle interior via the evaporator 36 by the air conditioning duct 38. The switching damper 39 switches between sending air inside the vehicle compartment to the evaporator 36 and sending air outside the vehicle compartment to the evaporator 36.

  In addition, the air conditioning duct 38 is provided with a heater 28 through which cooling water heated by the engine 25 passes.

  Generally, the air conditioner configured by the refrigeration cycle system 30 includes a ventilation passage for exhausting air in the vehicle on the rear side of the passenger compartment.

  In the present embodiment, the condenser 14 of the Rankine cycle system 10 is arranged on the rear side of the passenger compartment. A blower duct 40 that sends air in the passenger compartment to the condenser 14 is provided around the condenser 14.

  The air duct 40 communicates with the vehicle interior or the exterior of the vehicle interior, and a switching damper 41 that switches between sending air in the vehicle interior to the condenser 14 or sending air outside the vehicle interior (for example, traveling wind) to the condenser 14 is provided. Is provided. The condenser 14 is provided with a fan 42. The fan 42 is configured to discharge the air that has passed through the air duct 40 and the condenser 14 to the outside of the passenger compartment.

  Thus, in this Embodiment, it provided with the ventilation duct 40 which discharges the air of a vehicle interior in the vehicle back side, and was comprised so that the air of a vehicle interior might be sent to the condenser 14 of Rankine cycle system 10. FIG. With this configuration, the air in the passenger compartment with relatively little temperature fluctuation with respect to seasonal changes can be sent to the condenser 14. Also, traveling wind outside the passenger compartment with a relatively large flow rate can be sent to the condenser 14. Thereby, the heat exchange efficiency of the condenser 14 can be increased and the efficiency of the Rankine cycle system 10 can be prevented from decreasing.

  Although not shown in FIG. 2, the evaporator 12, the expander 13, and the pump 15 of the Rankine cycle system 10 are disposed on the vehicle front side (for example, the engine room). A part of the medium path 11 is configured to communicate with the condenser 14 disposed on the vehicle rear side.

  FIG. 3 is an example of a specific configuration of the air duct 40 in the vehicle 1 according to the first embodiment of the present invention.

  3A is a cross-sectional view of the vehicle 1, and FIGS. 3B and 3C are enlarged views of the main part of the air duct 40.

  As described above, the condenser 14 of the Rankine cycle system 10 is provided on the vehicle rear side. And it was comprised by the ventilation duct 40 so that the air in a vehicle interior and / or the running wind outside a vehicle interior might be sent.

  As shown in FIG. 3A, in a vehicle 1 (for example, a sedan type, a station wagon type, etc.), a luggage compartment 44 exists on the rear side of the compartment. An air duct 40 is formed in a part of the cargo chamber 44, and the condenser 14 is disposed on the rear side of the air duct 40. For example, the condenser 14 and the fan 42 are disposed in a space between the rear side of the luggage compartment 44 and the rear bumper facial. A switching damper 41 that switches whether the air in the vehicle compartment is sent to the condenser 14 from the rear side of the rear seat or the air outside the vehicle compartment is sent to the condenser 14 from the lower part of the vehicle 1 is sent to the air duct 40. Is provided.

  FIG. 3B shows a state in which the switching damper 41 is switched so as to send air in the passenger compartment to the condenser 14. In this state, the air in the vehicle compartment, which has been appropriately conditioned, is sent to the condenser 14, so that, for example, when the outside air temperature is high, such as in the summer, or when the outside air temperature is low, such as in the winter, an appropriate temperature for the condenser 14 is obtained. Air can be sent, and the heat exchange efficiency of the condenser 14 is increased.

  FIG. 3C shows a state where the switching damper 41 is switched so as to send air outside the passenger compartment to the condenser. In this state, since the traveling wind outside the passenger compartment is sent to the condenser 14, air having a larger flow rate than the air inside the passenger compartment can be sent to the condenser 14, and the heat exchange efficiency of the condenser 14 is increased.

  In particular, when the outside air temperature is an appropriate temperature for cooling the condenser 14, the fuel consumption of the vehicle 1 is reduced due to the loss of the refrigeration cycle system 30 caused by sending the air in the passenger compartment to the condenser 14. It can also be prevented.

  In the example shown in FIGS. 3B and 3C, the switching damper 41 is switched to either the vehicle interior or the vehicle interior. By adjusting, the air which mixed the air in a vehicle interior and the air outside a vehicle interior can be sent to the condenser 14. FIG. For example, the opening degree of the switching damper 41 can be controlled so as to send air that is mixed with 30% of the air inside the passenger compartment and 70% of the air outside the passenger compartment to the condenser 14.

  FIG. 4 is another example of a specific configuration of the air duct 40 in the vehicle 1 according to the first embodiment of the present invention.

  4A is a cross-sectional view of the vehicle 1, and FIGS. 4B and 4C are enlarged views of the main part of the air duct 40. FIG.

  As described above, the condenser 14 of the Rankine cycle system 10 is disposed on the vehicle rear side together with the air duct 40. And it was comprised by this ventilation duct 40 so that the air in a vehicle interior could be ventilated.

  In the example shown in FIG. 4, unlike the example shown in FIG. 3, the condenser 14 and the switching damper 41 are arranged on the front side of the luggage compartment 44 in the air duct 40 on the vehicle rear side.

  Even with this configuration, the same effect as described with reference to FIG. 3 can be obtained.

  That is, as shown in FIG. 4B, in the state in which the switching damper 41 is switched so as to send the air in the passenger compartment to the condenser, the air in the passenger compartment appropriately air-conditioned is sent to the condenser 14. For example, when the outside air temperature is high such as in the summer or when the outside air temperature is low such as in the winter, air having an appropriate temperature can be sent to the condenser 14, and the heat exchange efficiency of the condenser 14 is increased.

  Further, as shown in FIG. 4C, in the state where the switching damper 41 is switched so as to send the air outside the passenger compartment to the condenser, the traveling wind outside the passenger compartment is sent to the condenser 14, so As a result, a large amount of air can be sent to the condenser 14, and the heat exchange efficiency of the condenser 14 is increased. In particular, when the outside air temperature is an appropriate temperature for cooling the condenser 14, the fuel consumption of the vehicle 1 is reduced due to the loss of the refrigeration cycle system 30 caused by sending the air in the passenger compartment to the condenser 14. It can also be prevented.

  Note that, as described above with reference to FIG. 3, by adjusting the opening degree of the switching damper 41, air in which the air in the vehicle interior and the air outside the vehicle interior are mixed can be sent to the condenser 14.

  FIG. 5 is still another example of the specific configuration of the air duct 40 in the vehicle 1 according to the first embodiment of the present invention.

  3 and 4, the evaporator 12, the expander 13, and the pump 15 of the Rankine cycle system 10 are arranged in the engine room on the front side of the vehicle, and only the condenser 14 is arranged on the rear side of the vehicle. did. On the other hand, in the configuration example shown in FIG. 5, the evaporator 12, the expander 13, and the pump 15 of the Rankine cycle system 10 are arranged as one unit 10 a on the vehicle rear side and in the vicinity of the condenser 14.

  There is generally a space for mounting spare tires on the vehicle rear side. In recent years, spare tires have become unnecessary due to the use of run-flat tires and the like. On the other hand, in the engine room, because of various accessories such as the engine 25, the space for placing the Rankine cycle system 10 is reduced. Therefore, the unit 10a of the Rankine cycle system 10 is arranged in the space for mounting the spare tire.

  As shown in FIG. 5, the unit 10 a of the Rankine cycle system 10 is arranged on the vehicle rear side. By comprising in this way, the space in a vehicle can be used effectively.

  5, the exhaust heat recovery device 26 is provided on the vehicle rear side of the exhaust pipe 23, and a part of the cooling water passage 21 is provided from the engine 25 to the vehicle rear side. It is preferable to configure the cooling water path 21 so as to communicate with the recovery unit 26 and to return to the engine 25 side from the exhaust heat recovery unit 26 via the evaporator 12. With this configuration, it is not necessary to extend the medium path 11 from the front side of the vehicle, so that the medium path 11 can be greatly shortened and heat loss in the medium flow path 11 can be reduced.

  As described above, in the first embodiment of the present invention, in the Rankine cycle system 10 mounted on the vehicle 1, the condenser 14 is disposed on the rear side of the vehicle, and the air and / or the vehicle in the passenger compartment is disposed in the condenser 14. By sending outdoor traveling wind, the heat exchange efficiency of the condenser 14 can be increased, and the efficiency of the Rankine cycle system 10 can be increased.

  Moreover, since the heat exchange efficiency of the condenser 14 can be improved, the condenser 14 can be reduced in size and space efficiency can be improved.

Second Embodiment
Next, a second embodiment of the present invention will be described. Unlike the above-described first embodiment, the second embodiment is an embodiment in the case where the present invention is applied to a vehicle 1 including an air conditioner (second air conditioner) on the vehicle rear side. In addition, the same code | symbol is attached | subjected to the structure same as 1st Embodiment, and the description is abbreviate | omitted.

  FIG. 6 is a configuration diagram of the vehicle 1 on which the Rankine cycle system 10 according to the second embodiment of the present invention is mounted.

  Similar to the first embodiment described above, the vehicle 1 is mounted with the Rankine cycle system 10, the engine cooling system 20, and the refrigeration cycle system 30.

  As described above, the refrigeration cycle system 30 includes the compressor 32, the condenser 33, the liquid tank 34, the expansion valve 35, and the evaporator 36 disposed on the vehicle front side in the circulation path 31 through which the refrigerant is circulated. In order to adjust the air temperature on the front side of the vehicle, the blower fan 37, the air conditioning duct 38, the switching damper 39, the heater 28, and the like provided around the evaporator 36 constitute a first air conditioner 30a.

  Here, in the present embodiment, the vehicle 1 is provided with a rear air conditioning duct 50 for air conditioning on the vehicle rear side. The rear air conditioning duct 50 is provided with an evaporator 51, a blower fan 52, a heater 55, and the like, similar to the air conditioning duct 38 described above. These constitute the second air conditioner 30b that adjusts the air temperature on the vehicle rear side.

  The first air conditioner 30a and the second air conditioner 30b share the circulation path 31, the compressor 32, the condenser 33, the liquid tank 34, the expansion valve 35, and the evaporator 36, and use a common refrigerant to drive the vehicle front side. The air temperature of the vehicle or the air temperature on the rear side of the vehicle is adjusted.

  A switching damper 53 that switches whether the air sent by the blower fan 52 is sent to the vehicle interior via the heater 55 or to the vehicle interior without going through the heater 55 is supplied to the rear air conditioning duct 50. Is provided.

  In FIG. 6, the left side of the rear air conditioning duct 50 indicates the air intake side from the vehicle interior, and the right side of the rear air conditioning duct 50 indicates the air exhaust side to the vehicle interior.

  The rear air conditioning duct 50 is provided with a switching damper 54 for switching whether the air that has passed through the evaporator 51 by the blower fan 52 is sent into the passenger compartment or to the condenser 14.

  A switching damper 41 is provided near the condenser 14 of the rear air conditioning duct to switch between sending air in the vehicle compartment to the condenser 14 and sending air outside the vehicle compartment to the condenser 14.

  With this configuration, the air cooled by the evaporator 51 provided in the rear air conditioning duct 50 can be sent directly to the condenser 14, so that the heat exchange efficiency of the condenser 14 is increased, and the Rankine cycle system 10 Efficiency can be increased. Further, since not only the cooled air but also the traveling air outside the passenger compartment can be sent to the condenser 14, the condenser 14 can be appropriately cooled without lowering the efficiency of the refrigeration cycle system 30. While improving the efficiency of the cycle system 10, the fuel consumption of the vehicle 1 can be improved.

  FIG. 7 is an example of a specific configuration of the air duct 40 in the vehicle 1 according to the second embodiment of the present invention.

  As shown in FIG. 7, the second air conditioner is disposed on the vehicle rear side, more specifically, between the rear seat and the luggage compartment 44. The condenser 14 of the Rankine cycle system 10 is configured to send air cooled by the evaporator 51 of the second air conditioner and / or traveling air outside the passenger compartment.

  As described above, in the second embodiment of the present invention, the condenser 14 is arranged on the vehicle rear side in the Rankine cycle system 10 mounted on the vehicle 1 as in the first embodiment. And the heat exchange efficiency of the condenser 14 can be improved by sending the air which passed the evaporator 51 with which the back side air-conditioning duct 50 was equipped, and / or the driving | running | working wind outside a compartment to the condenser 14, Rankine cycle The efficiency of the system 10 can be increased.

  Moreover, since the heat exchange efficiency of the condenser 14 can be improved, the condenser 14 can be reduced in size and space efficiency can be improved.

  In the second embodiment, as shown in FIG. 6, the condenser 14 is disposed between the rear seat and the luggage compartment 44, but the configuration is not limited thereto. That is, as shown in FIG. 3 of the first embodiment described above, the condenser 14 may be disposed on the vehicle rear end side. Further, as shown in FIG. 5, the evaporator 12, the expander 13, and the pump 15 of the Rankine cycle system 10 may be arranged as one unit along with the air duct 40 and the condenser 14 on the vehicle rear side.

  In the second embodiment, the second air conditioner configured by the evaporator 51, the blower fan 52, and the heater 55 is provided for the purpose of adjusting the air temperature on the vehicle rear side, but is not limited thereto. There is nothing. For example, in a hybrid vehicle, a large battery is generally disposed on the rear side of the vehicle, but this battery may be cooled by a second air conditioner. Also in this case, the condenser 14 can be cooled by the air cooled by the second air conditioner.

It is a lineblock diagram of a Rankine cycle system of a 1st embodiment of the present invention. It is a lineblock diagram of vehicles carrying a Rankine cycle system of a 1st embodiment of the present invention. It is an example of the concrete structure of the ventilation duct in the vehicle 1 of the 1st Embodiment of this invention. It is another example of the concrete structure of the ventilation duct in the vehicle 1 of the 1st Embodiment of this invention. It is a further another example of the concrete structure of the ventilation duct in the vehicle 1 of the 1st Embodiment of this invention. It is a block diagram of the vehicle carrying the Rankine cycle system of the 2nd Embodiment of this invention. It is an example of the specific structure of the ventilation duct in the vehicle 1 of the 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle 10 Rankine cycle system 11 Medium path 12 Evaporator 13 Expander 14 Condenser 15 Pump 20 Engine cooling system 26 Waste heat recovery device 30 Refrigeration cycle system 36 Evaporator 40 Air duct 50 Rear air conditioning duct 51 Evaporator

Claims (5)

In the Rankine cycle system (10) mounted on the vehicle (1),
A medium path (11) through which the medium circulates, an evaporator (12) that vaporizes the medium by exhaust heat of an engine mounted on the vehicle (1), and an expander that generates rotational energy by the vaporized medium ( 13), a condenser (14) for condensing and liquefying the vaporized medium, and a pump (15) for circulating the liquefied medium,
The Rankine cycle system, wherein the condenser (14) is disposed on the rear side of the vehicle compartment of the vehicle (1) and performs heat exchange using air in the vehicle compartment. The Rankine cycle system according to claim 1,
The condenser (14) is arranged on the rear side of the vehicle compartment of the vehicle (1) so as to blow at least one of air inside the vehicle compartment and traveling wind outside the vehicle compartment to the condenser (14). The Rankine cycle system, wherein the Rankine cycle system is arranged in a configured air duct (40). The Rankine cycle system according to claim 1,
The evaporator (12), the expander (13), the condenser (14), and the pump (15) are arranged as one unit on the rear side of the passenger compartment and in the vicinity of the condenser (14). Rankine cycle system characterized by being arranged. The Rankine cycle system according to claim 1,
The vehicle (1) includes an air conditioner that adjusts the air temperature in the passenger compartment, and the air conditioner includes an evaporator (51) that cools the air temperature on the rear side of the passenger compartment.
The condenser (14) is arranged on the rear side of the passenger compartment of the vehicle (1) and blows air that has passed through the evaporator (51) to at least one of the passenger compartment and the condenser (14). It is arrange | positioned at the ventilation duct (40) comprised by this, Rankine cycle system characterized by the above-mentioned. The Rankine cycle system according to claim 1,
The vehicle (1)
A first air conditioner that introduces at least one of air in the vehicle interior and air outside the vehicle interior, and adjusts the air temperature in the vehicle front side of the vehicle by heating or cooling the introduced air;
A second air conditioner that introduces at least one of air inside the vehicle interior and air outside the vehicle interior, and adjusts the air temperature in the vehicle rear side by heating or cooling the introduced air;
With
The condenser (14) blows air cooled by the second air conditioner disposed on the rear side of the passenger compartment of the vehicle (1) to at least one of the passenger compartment and the condenser (14). The Rankine cycle system, wherein the Rankine cycle system is disposed in the air duct (40).