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Solid oxide fuel cell and internal combustion engine combined power system and operation method thereof

A solid oxide, fuel cell technology, used in fuel cells, fuel cell additives, fuel cell heat exchange, etc., can solve the problems of high output power, poor dynamic characteristics, poor start-stop performance, etc., and achieve low output power. , less emission, good dynamic effect

Active Publication Date: 2019-08-02
XI AN JIAOTONG UNIV
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Problems solved by technology

In addition, the SOFC-gas turbine system reported in the past has large components, high output power, poor start-stop performance, and poor dynamic characteristics.

Method used

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  • Solid oxide fuel cell and internal combustion engine combined power system and operation method thereof

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Embodiment Construction

[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings; the present invention discloses a solid oxide fuel cell and internal combustion engine combined power system and its operating method; the system mainly includes a natural gas source 1, a pre-reforming reactor 6, and an SOFC device 7 And hydrogen storage reactor 13; The system also includes water tank 2, water pump 3, first heat exchanger 4, gas mixer 5, compressor 8, HCCI internal combustion engine 9, tail gas collection device 10, DC / AC converter 11, with Electric equipment 12 , second heat exchanger 14 , third heat exchanger 15 , fourth heat exchanger 16 and mixing device 17 .

[0032] The first heat exchanger 4 is provided with two input ends and two output ends, and the two input ends are input end 1 and input end 2 respectively, and the two output ends are output end 1 and output end 2 respectively; The fourth heat exchanger 16 is connected, and the fourth ...

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Abstract

The invention discloses a solid oxide fuel cell and internal combustion engine combined power system and an operation method thereof. According to the system, a solid oxide fuel cell (SOFC) device anda homogeneous charge compression ignition (HCCI) internal combustion engine are combined together to form the combined power system, the HCCI internal combustion engine can generate electricity by utilizing exhaust of the SOFC device, energy in the fuel is used fully, exhaust heat and waste heat emissions are reduced, and an ideal way of comprehensive utilization of the energy is achieved. The HCCI internal combustion engine and the SOFC device are combined together. A pre-reforming reactor is placed in front of the SOFC device, the reforming reaction of fuel gas can be carried out in advance, the utilization rate of the fuel can be improved, and the electrochemical reaction inside the SOFC device is more complete. According to the solid oxide fuel cell and internal combustion engine combined power system, comprehensive use of the fuel is carried out, and the needs of various large power equipment can met; and compared with traditional energy supply equipment, the efficiency is higher, emission is less, and the economic value is higher.

Description

[0001] 【Technical field】 [0002] The invention belongs to the technical field of energy system design optimization, and in particular relates to a combined power system of a solid oxide fuel cell and an internal combustion engine and an operation method thereof. [0003] 【Background technique】 [0004] As a kind of high-temperature fuel cell, solid oxide fuel cell (SOFC device), and the hybrid system composed of other systems are also constantly researched and developed. Most electricity today is provided by conventional power generation technologies that rely heavily on the burning of fossil fuels. However, this will make the already serious environmental problems such as global warming and air pollution worse. In order to improve this traditional power generation method, many scholars have proposed SOFC-GT (gas turbine), SOFC-internal combustion engine and other combined power generation methods. This SOFC cogeneration technology takes advantage of SOFC's high power genera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/32B60K6/24H01M8/0612H01M8/04007
CPCB60K6/24B60K6/32H01M8/04067H01M8/0618Y02E60/50Y02T10/62Y02T90/40
Inventor 吴震朱鹏飞张早校尧兢
Owner XI AN JIAOTONG UNIV
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