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Optimization system and method for balancing system output efficiency and NOx emission of SOFC system

A technology of output efficiency and optimization method, applied in electrochemical generators, fuel cells, electrical components, etc., can solve problems such as adverse human health

Active Publication Date: 2020-12-18
HUAZHONG UNIV OF SCI & TECH
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  • Claims
  • Application Information

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Problems solved by technology

However, during the experiment, it was found that the exhaust gas discharged from the combustion chamber components will contain a certain amount of NO x , which is detrimental to the environment, human health, etc.

Method used

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  • Optimization system and method for balancing system output efficiency and NOx emission of SOFC system
  • Optimization system and method for balancing system output efficiency and NOx emission of SOFC system
  • Optimization system and method for balancing system output efficiency and NOx emission of SOFC system

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Embodiment Construction

[0034] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0035] The invention provides a method to balance the system output efficiency and NO of the SOFC system x Emission optimization systems such as figure 1 As shown, the optimized system includes SOFC stack, combustion chamber, blower, bypass valve, heat exchanger and nitrogen and oxygen sensor based on SOFC principle. The nitrogen and oxygen sensor consists of two parts: a measurement module and a control module. The high-temperature air and hydrogen through the heat exchanger are sent to the SOFC stack for reaction, and the low-temperature air sent through the bypass valve is used to take away the...

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Abstract

The invention discloses an optimization system and method for balancing system output efficiency and NOx emission of an SOFC system. The system comprises an SOFC electric pile, a combustion chamber, an air blower, a bypass valve, a heat exchanger and a nitrogen and oxygen sensor based on an SOFC principle. The method comprises the following steps: establishing a relationship among thermal characteristic parameters, system output efficiency, NOx content and system operation variables to obtain a solution set which meets thermal stability requirements and has the highest system output efficiencyand the lowest NOx content, and screening out an optimal system operation variable for balancing the system output efficiency and NOx emission of the SOFC system from the solution set. When the system operates stably, certain system output efficiency can be guaranteed, NOx emission is reduced as much as possible, and environmental friendliness is achieved.

Description

technical field [0001] The invention belongs to the field of solid oxide fuel cells, and more specifically relates to a method for balancing the system output efficiency and NO of an SOFC system. x System and method for optimizing emissions. Background technique [0002] Energy issues have always been an important issue in the development of human society, and thermal power is still the most widely used at this stage. There are many problems in thermal power generation, such as coal, oil, etc. cannot be regenerated, and the combustion of coal will emit a lot of pollutants, resulting in increased acid rain, environmental pollution and other problems. In this context, various new power generation methods have emerged, and Solid Oxide Fuel Cell (SOFC, Solid Oxide Fuel Cell) is one of them. It has the characteristics of high power generation efficiency, quiet and noiseless, clean and pollution-free, and diversified fuels. Therefore, fuel cells are known as one of the most attr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/0432H01M8/0438H01M8/04746H01M8/04858H01M8/04992
CPCH01M8/0432H01M8/04402H01M8/04761H01M8/0494H01M8/04992Y02E60/50
Inventor 李曦于洋李怡曹昱洋辛捷林伟勋赵松蒋建华
Owner HUAZHONG UNIV OF SCI & TECH
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