CN112786916A - Fuel cell water and heat production utilization system, rail transit vehicle and method - Google Patents
Fuel cell water and heat production utilization system, rail transit vehicle and method Download PDFInfo
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- CN112786916A CN112786916A CN202110082497.6A CN202110082497A CN112786916A CN 112786916 A CN112786916 A CN 112786916A CN 202110082497 A CN202110082497 A CN 202110082497A CN 112786916 A CN112786916 A CN 112786916A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04052—Storage of heat in the fuel cell system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D27/00—Heating, cooling, ventilating, or air-conditioning
- B61D27/0036—Means for heating only
- B61D27/0063—Means for heating only the heat being derived from independent means, i.e. autonomous devices, e.g. stoves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D35/00—Sanitation
- B61D35/005—Toilet facilities
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04291—Arrangements for managing water in solid electrolyte fuel cell systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
The invention discloses a system, a rail transit vehicle and a method for utilizing water and heat produced by a fuel cell, which solve the problems of water production waste of the fuel cell and easy occurrence of rail surface icing in the prior art, have the beneficial effects of fully utilizing water resources and fully utilizing the heat of water produced by a fuel cell stack, and have the following specific schemes: a fuel cell water and heat production utilization system comprises a fuel cell stack for generating electricity; the heat exchange device is respectively and independently connected with the fuel cell stack and an air conditioning system of rail transit, and is used for receiving water generated by the reaction of the fuel cell stack and recovering the heat of the received water to heat gas for heating the air conditioning system; the heat exchange device is connected with the water storage device and used for sending water generated by the reaction of the fuel cell to the water storage device for water storage; a first temperature sensor installed indoors; and the control unit is respectively and independently connected with the first temperature sensor, the heat exchange device and the air conditioning system.
Description
Technical Field
The invention relates to the field of rail transit, in particular to a fuel cell water and heat production utilization system, a rail transit vehicle and a method.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
Due to the advantages of no pollution, high energy density and the like of the hydrogen fuel cell, the hydrogen fuel cell has great potential in the field of train standby power supply or main power, has high conversion efficiency, no pollution and zero emission, and is the development direction of future vehicle-mounted energy.
The fuel cell configured in the hydrogen energy train generates electricity and water by taking hydrogen and oxygen as reactants, is a high-power fuel cell generally above hundred kW level, and continuously works, so that the water yield of the fuel cell is high.
The inventor finds that water produced by the traditional hydrogen energy train fuel cell is generally directly discharged under the train, so that the problem of water resource waste exists; and the produced water makes the train operation track be wetted very easily, and when being in the low temperature environment, the water that fuel cell discharged can cause the rail face to freeze by a large scale, leads to the train to slide, even the braking is invalid, has certain potential safety hazard.
Disclosure of Invention
Aiming at the defects in the prior art, the first purpose of the invention is to provide a fuel cell water and heat production utilization system, which can fully utilize the heat and water of the fuel cell stack water production, reduce the waste of water resources, avoid the icing of a low-temperature rail surface and effectively reduce the power consumption of an air conditioning system.
The second purpose of the invention is to provide a rail transit vehicle, which can reduce the weight of the rail transit vehicle and reduce the energy consumption by fully utilizing the water produced by the fuel cell galvanic pile.
The third purpose of the invention is to provide a using method of the water and heat production utilization system of the fuel cell, which fully utilizes heat energy and reduces the power consumption of an air conditioning system.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a fuel cell water and heat production and utilization system comprising:
a fuel cell stack for generating electricity;
the heat exchange device is respectively and independently connected with the fuel cell stack and an air conditioning system of rail transit, and is used for receiving water generated by the reaction of the fuel cell stack and recovering the heat of the received water to heat gas for heating the air conditioning system;
the heat exchange device is connected with the water storage device and used for sending water generated by the reaction of the fuel cell to the water storage device for water storage;
a first temperature sensor installed indoors;
and the control unit is respectively and independently connected with the first temperature sensor, the heat exchange device and the air conditioning system.
In the utilization system, the heat of the water produced by the fuel cell stack is utilized to heat the carriage, so that the power consumption of the air-conditioning system is effectively reduced; the fuel cell galvanic pile is used for producing water, so that the volume of the existing water storage tank can be effectively reduced, and the water adding frequency and water amount are reduced; the first temperature sensor measures the indoor temperature and sends the indoor temperature to the control unit, and the control unit controls the actions of the heat exchange device and the air conditioning system according to the indoor temperature.
The system for utilizing water and heat produced by the fuel cell further comprises a second temperature sensor, wherein the second temperature sensor is installed at the air inlet of the air conditioning system and used for measuring the outdoor temperature, and the second temperature sensor is used for measuring the outdoor temperature and controlling the opening of the air conditioning system by the control unit and starting the air conditioning system to supply heat.
According to the system for utilizing water and heat produced by the fuel cell, the first temperature sensor is arranged at the air return inlet of the air conditioning system, so that the indoor temperature can be effectively measured.
According to the system for utilizing water and heat produced by the fuel cell, the proportional valve is arranged between the heat exchange device and the air conditioning system to control the gas flow entering the air conditioning system through the heat exchange device, the opening degree of the proportional valve can be controlled according to the indoor temperature, the gas flow of the heat exchange device is regulated and controlled, and the indoor temperature is ensured to be close to the set value.
According to the system for utilizing water and heat produced by the fuel cell, the fan is arranged on the side part of the heat exchange device, the fan is connected with the control unit, and the heat produced by the fuel cell stack can be reduced through the arrangement of the fan.
The system for utilizing the produced water and the heat of the fuel cell further comprises a water purifier, wherein the water purifier is connected with the water storage device, and the water stored in the water storage device can be used for drinking and washing after being purified by the water purifier.
The system for producing water and heat and utilizing heat of the fuel cell further comprises a toilet water tank, the water storage device is connected with the toilet water tank, the water purifier is provided with a recovery pipe, and the recovery pipe is connected with the toilet water tank.
The system for utilizing the produced water and the produced heat of the fuel cell further comprises a washbasin, wherein the water storage device and the water purifier are respectively connected with a development valve arranged at the washbasin;
the washbasin is provided with a pipeline which is connected with the toilet water tank, so that waste water generated by washing is gathered into the toilet water tank.
In a second aspect, the invention further provides a rail transit vehicle, which comprises the fuel cell water-producing and heat-generating utilization system.
In a third aspect, the present invention further provides a method for using a system for utilizing water and heat produced by a fuel cell, including the following steps:
water generated by the fuel cell stack passes through a heat exchange device, and the heat exchange device receives heat of the water to heat gas for heating of an air conditioning system;
when the first temperature sensor detects that the indoor temperature is lower than a set first temperature, the fuel cell stack generates water through the heat exchange device to heat and supply heat, and the air conditioning system heats and supplies heat;
when the first temperature sensor detects that the indoor temperature is higher than a set second temperature, the heat exchange device heats and heats water produced by the fuel cell stack, and the air conditioning system is turned off;
wherein the first temperature is less than the second temperature.
The beneficial effects of the invention are as follows:
1) the fuel cell water and heat production utilization system fully utilizes the heat of the fuel cell stack water production, and can heat a carriage at about 60 ℃, thereby effectively reducing the power consumption of an air conditioning system; the system measures the indoor temperature through the first temperature sensor and sends the indoor temperature to the control unit, and the control unit controls the actions of the heat exchange device and the air conditioning system according to the indoor temperature.
2) The fuel cell stack water production and heat production utilization system stores the fuel cell stack water through the water storage device, and the fuel cell stack can produce water all the time during working, so long as the volume of the water storage device is allowed, the water storage device can supply water and can continuously feed water, the volume of the existing water storage tank is effectively reduced, and the water adding frequency and water amount are reduced; the quality of the water storage device is reduced, the weight of the rail transit vehicle can be effectively reduced, and the energy consumption is fully reduced.
3) According to the invention, the proportional valve is arranged between the heat exchange device and the air conditioning system, so that the proportional valve can be controlled according to the indoor temperature, the regulation and control of the gas flow of the heat exchange device are realized, the indoor temperature is ensured to be close to a set value, and the condition of overheating in the room is avoided.
4) The water purifier can be used for purifying the water produced by the fuel cell stack, the purified water can be directly used for drinking or washing, and the water after washing can be discharged into a toilet water tank, so that the water resource is fully utilized.
5) According to the invention, the second temperature sensor is arranged, and the second temperature sensor is used for measuring the outdoor temperature, so that the control unit can be used for controlling the opening of the air conditioning system and starting the air conditioning system to supply heat.
6) The rail transit vehicle provided by the invention can fully utilize the heat of the water produced by the fuel cell stack, fully utilize the water produced by the fuel cell stack, realize the full utilization of water resources, prevent the produced water from being discharged on a rail, and avoid the phenomenon of rail surface icing, thereby reducing potential safety hazards; and the fuel cell stack continuously produces water in the operation process and is stored by the water storage device, and the water storage device has smaller volume and smaller water storage amount compared with the traditional water tank, thereby being beneficial to reducing the weight of the train and reducing the energy consumption.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a schematic diagram of a method for using a fuel cell water and heat generation system according to one or more embodiments of the present invention.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, unless the invention expressly state otherwise, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
for convenience of description, the words "up", "down", "left" and "right" in the present invention, if any, merely indicate correspondence with the directions of up, down, left and right of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.
Term interpretation section: the terms "mounted," "connected," "fixed," and the like in the present invention are to be understood in a broad sense, and for example, the terms "mounted," "connected," and "fixed" may be fixed, detachable, or integrated; the two components can be connected mechanically or electrically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and the terms used in the present invention should be understood as having specific meanings to those skilled in the art.
As introduced in the background art, the problems of water resource waste and easy icing of rail surfaces exist in the prior art, and in order to solve the technical problems, the invention provides a system for utilizing water and heat produced by a fuel cell, a rail transit vehicle and a method.
Example one
In an exemplary embodiment of the present invention, a system for utilizing water and heat generated by a fuel cell includes:
a fuel cell stack for generating electricity;
the heat exchange device is respectively and independently connected with the fuel cell stack and an air conditioning system of rail transit, and is used for receiving water generated by the reaction of the fuel cell stack and recovering the heat of the received water to heat gas for heating the air conditioning system;
the heat exchange device is connected with the water storage device and used for sending water generated by the reaction of the fuel cell to the water storage device for water storage;
a first temperature sensor installed indoors;
and the control unit is respectively and independently connected with the first temperature sensor, the heat exchange device and the air conditioning system.
The air conditioning system is an indoor existing air conditioning system, and can regulate and control indoor temperature, including cooling and heating; the air conditioning system is provided with an air inlet and an air outlet, wherein the water inlet is communicated with the outside, and the air outlet is communicated with the inside.
Furthermore, the system for utilizing the water and heat produced by the fuel cell also comprises a second temperature sensor, wherein the second temperature sensor is arranged at an air inlet of the air conditioning system and is used for measuring the outdoor temperature, and the second temperature sensor is used as a condition for starting the air conditioning system to heat when the outdoor temperature is lower than a set temperature, such as 12 ℃; the second temperature sensor is arranged at the air inlet, so that the second temperature sensor is prevented from being damaged by the external environment, and the service life of the second temperature sensor is ensured; of course, in other examples, the second temperature sensor may be mounted at other locations outside of the vehicle cabin.
In some examples, the first temperature sensor is mounted to a return air inlet of the air conditioning system; it will be readily appreciated that the first temperature sensor may also be mounted at other locations within the room, such as the interior wall of the room.
In order to further control the degree of heating the water produced by the fuel cell stack through the heat exchange device, a proportional valve is arranged between the heat exchange device and the air conditioning system to control the gas flow entering the air conditioning system through the heat exchange device, the opening degree of the proportional valve can be controlled according to the indoor temperature, the regulation and control of the gas flow of the heat exchange device are realized, and the indoor temperature is ensured to be close to a set value.
It should be noted that, the side of the heat exchange device is provided with one or more fans, the fans are connected with the control unit, when the indoor temperature is high, such as summer, the proportional valve is closed, the heat exchange device does not need to supply air to the air conditioning system, but considering that the water produced by the fuel cell stack is hot, in order to control the temperature of the produced water, the temperature of the produced water of the fuel cell stack is properly reduced by the blowing direction of the fans.
Here, the heat exchanging device constitutes auxiliary heating equipment together with the fan.
The air outlet side of the fan is arranged towards the water pipe of the heat exchange device, and the water pipe of the heat exchange device is used for realizing the flow of the water produced by the fuel cell stack to the water storage device; because the heat exchange device needs to supply heat when the temperature is lower, the water pipe of the heat exchange device is a multi-section bent pipe so as to ensure the heat exchange area and fully utilize the heat of the water produced by the fuel cell stack.
Furthermore, because the water produced by the fuel cell galvanic pile is pure water and has impurities, the system for utilizing the water produced by the fuel cell and the heat produced by the fuel cell also comprises a water purifier which is connected with the water storage device, and the water produced by the fuel cell galvanic pile is filtered by the water purifier and can be directly used for drinking or washing and gargling and other purposes.
It should be explained that the water purifier is a water purifier which is commercially available.
It should be noted that the water storage device is a water collection tank, and because the fuel cell can produce uninterrupted water during use, the water collection tank can be filled with continuous water flow, and the water collection tank body has a smaller volume and smaller water storage amount compared with the traditional water tank, thereby being beneficial to reducing the weight of the train and reducing the energy consumption.
Considering that the water collecting tank is continuously injected with water flow, the water quantity needs to be supplemented outside the train, and the supplementing frequency is reduced. A water level monitoring sensor is arranged in the water collecting tank and is connected with a control unit, the control unit is connected with an alarm lamp or a buzzer, and if the water level is lower than the set water level, a driver or a crew member is prompted to need external water supplement; if the water level is higher than the set water level, the control unit controls the water pipe of the heat exchange device to stop supplying water;
the control unit is specifically a controller, and the controller may be a PLC controller, or another type of controller.
Example two
The difference between this embodiment and the first embodiment is:
the water pipe of heat exchange device sets up the bleeder, the exit end of bleeder extends to outdoors, the bleeder sets up the valve, the valve is closed under the normality, when water level was higher than the setting value in the header tank, control unit control this valve and open, make water flow from the bleeder to outdoors, when a fuel cell produced water heat production and utilizes the system to be applied to rail transit vehicle, locate outdoors because of the exit end of bleeder, and the width direction of rail transit vehicle is located to the bleeder, avoid fuel cell galvanic pile to produce water flow direction track, avoid the rail face to freeze.
EXAMPLE III
The difference between this embodiment and the first embodiment is:
the water collecting tanks are provided with a plurality of water collecting tanks, when a fuel cell water production and heat production utilization system is applied to rail transit vehicles, each carriage is respectively provided with a plurality of water collecting tanks, so that water can be supplied to the next water collecting tank by the water pipe of the heat exchange device after the water level of one water collecting tank is higher than a set height, the water pipes of each water collecting tank and the heat exchange device are respectively provided with a control switch, and all the control switches are respectively and independently connected with the control unit.
Example four
The embodiment provides a rail transit vehicle, which comprises the water and heat production and utilization system of the fuel cell, and the indoor space of the embodiment is the inside of the carriage of the rail transit vehicle.
In order to further fully utilize a water source, the fuel cell water production and heat production utilization system further comprises a toilet water tank, the water storage device is connected with the toilet water tank, the toilet water tank is also a toilet water tank, a recovery pipe is arranged below a water outlet of the water purifier and is connected with the toilet water tank, and water in the toilet water tank is used for a closestool, namely a toilet bowl.
It is easy to understand that, in order to meet the requirements of users, the fuel cell water production and heat production utilization system further comprises a washbasin, and the water storage device and the water purifier are respectively connected with a development valve arranged at the washbasin;
the bottom of the washbasin is provided with a pipeline which is connected with a water tank of a toilet, so that water is fully utilized.
Alternatively, in other examples, the water purifier is mounted directly adjacent to the washbasin, and the water flowing from the water outlet of the water inlet device can flow to the washbasin, so that the purified water can be directly utilized at the washbasin.
It is necessary to supplement that the washbasin is also available on the market and is installed inside the carriage of the rail transit vehicle.
Of course, in other examples, the water collecting tank is also connected with the toilet water tank, and particularly, a one-way throttle valve is arranged on a connecting pipeline of the water collecting tank and the toilet water tank; thus, a part of water in the water collecting tank flows to the water purifier, and the other part of water flows to the toilet water tank.
Example four
The embodiment provides a method for using a system for utilizing water and heat produced by a fuel cell, which is shown in fig. 1 and comprises the following steps:
water generated by the fuel cell stack passes through a heat exchange device, and the heat exchange device receives heat of the water to heat gas for heating of an air conditioning system;
when the first temperature sensor detects that the indoor temperature is lower than a set first temperature, the fuel cell stack generates water through the heat exchange device to heat and supply heat, and the air conditioning system heats and supplies heat;
when the first temperature sensor detects that the indoor temperature is higher than a set second temperature, the heat exchange device heats and heats water produced by the fuel cell stack, and the air conditioning system is turned off;
wherein the first temperature is less than the second temperature.
Specifically, in some examples, the first temperature set point is 12 ℃ and the second temperature set point is 16 ℃.
Further, a proportional valve is arranged between the air conditioning system and the heat exchange device, when the indoor temperature is higher than the second temperature, the flow of the heating gas of the heat exchange device is controlled by the proportional valve so as to avoid the indoor temperature from increasing too fast, and the gas quantity is controlled by the proportional valve so as to maintain the temperature of the carriage at about 18 ℃; the first temperature sensor is used for detecting the indoor temperature and feeding back the indoor temperature to the control unit, and the control unit is used for controlling the opening of the proportional valve according to the temperature of the carriage and controlling the on-off of the air conditioning system.
In addition, when the first temperature sensor detects that the indoor temperature is higher than a third temperature, such as 20 ℃, the control unit controls the proportional valve to be automatically turned off, and stops heating water produced by the fuel cell stack through the heat exchange device;
when the first temperature sensor detects that the indoor temperature is lower than 16 ℃, the control unit controls the proportional valve to open.
In addition, the outdoor temperature is detected by the second temperature sensor, and when the outdoor temperature detected by the second temperature sensor is lower than the set temperature, such as 12 ℃, during the operation of the rail transit vehicle, the control unit controls the air conditioning system to start heating to heat the interior of the carriage; further, the control unit controls the heat exchange device to heat and supply water produced by the fuel cell stack, and specifically controls the fuel cell stack by fully opening the proportional valve.
The use method of the fuel cell water and heat production utilization system provided by the invention solves the problem of water production and discharge of the fuel cell galvanic pile, avoids large-area freezing of a low-temperature rail surface, reduces the volume of a water storage tank of a train, reduces the water adding frequency and water quantity of the train, reduces the train weight and reduces the energy consumption. When the air conditioning heating needs to be started in a low-temperature environment in winter, the heat of water produced by the fuel cell can be fully utilized, the heating efficiency of the train is increased, and the power consumption of the air conditioner is reduced.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A system for utilizing water and heat produced by a fuel cell, comprising:
a fuel cell stack for generating electricity;
the heat exchange device is respectively and independently connected with the fuel cell stack and an air conditioning system of rail transit, and is used for receiving water generated by the reaction of the fuel cell stack and recovering the heat of the received water to heat gas for heating the air conditioning system;
the heat exchange device is connected with the water storage device and used for sending water generated by the reaction of the fuel cell to the water storage device for water storage;
a first temperature sensor installed indoors;
and the control unit is respectively and independently connected with the first temperature sensor, the heat exchange device and the air conditioning system.
2. The system as claimed in claim 1, further comprising a second temperature sensor installed at the air inlet of the air conditioning system for measuring the outdoor temperature.
3. The system as claimed in claim 1, wherein the first temperature sensor is installed at an air return inlet of the air conditioning system.
4. The system as claimed in claim 1, wherein a proportional valve is disposed between the heat exchanging device and the air conditioning system to control the flow rate of the gas from the heat exchanging device to the air conditioning system.
5. The system for utilizing heat generated by water and heat of a fuel cell as claimed in claim 1, wherein a fan is disposed at a side of the heat exchanging device, and the fan is connected to the control unit.
6. The system for utilizing heat generated by water produced by fuel cell as claimed in claim 1, further comprising a water purifier connected to said water storage device.
7. The system for producing water and heat and utilizing heat of the fuel cell as claimed in claim 6, further comprising a toilet water tank, wherein the water storage device is connected with the toilet water tank, and the water purifier is provided with a recovery pipe connected with the toilet water tank.
8. The system for producing and utilizing water and heat of the fuel cell according to claim 7, further comprising a washbasin, wherein the water storage device and the water purifier are respectively connected with a development valve arranged at the washbasin;
the washbasin is provided with a pipeline which is connected with the toilet water tank.
9. A rail transit vehicle comprising a fuel cell water and heat generation system as claimed in any one of claims 1 to 8.
10. Use of a system for producing water and heat from fuel cells according to any one of claims 1 to 8, characterized in that it comprises the following:
water generated by the fuel cell stack passes through a heat exchange device, and the heat exchange device receives heat of the water to heat gas for heating of an air conditioning system;
when the first temperature sensor detects that the indoor temperature is lower than a set first temperature, the fuel cell stack generates water through the heat exchange device to heat and supply heat, and the air conditioning system heats and supplies heat;
when the first temperature sensor detects that the indoor temperature is higher than a set second temperature, the heat exchange device heats and heats water produced by the fuel cell stack, and the air conditioning system is turned off;
wherein the first temperature is less than the second temperature.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023208504A1 (en) * | 2022-04-29 | 2023-11-02 | Siemens Mobility GmbH | Vehicle having a fuel cell system and a treatment device for treating the process water |
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Application publication date: 20210511 |