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Output power regulation method of solid oxide fuel cell

A technology of solid oxide and output power, which is applied in the direction of fuel cells, circuits, electrical components, etc., can solve the problems of wasting electric energy and waste, and achieve the effects of reducing fuel consumption, improving effective utilization rate, and extending effective service life

Active Publication Date: 2017-08-25
FOSHAN SUOFUKE HYDROGEN ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] At present, SOFC battery technology does not control the working state of the battery. The supply of fuel gas, air, and water vapor is only fixed according to the empirically set values. Regardless of the load, the fuel cell always maintains the rated value for power generation, causing unnecessary waste.
[0019] When the load is not working, the battery may stop generating power, and it will take a long time to start the project when restarting the power generation, or the battery will continue to generate power, wasting power

Method used

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  • Output power regulation method of solid oxide fuel cell
  • Output power regulation method of solid oxide fuel cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Such as figure 1 and figure 2 As shown, it is a method for adjusting the output power of a solid oxide fuel cell, including a solid oxide fuel cell and a control unit, and the solid oxide fuel cell includes a combustion processing chamber, a gas channel 12 and an SOFC stack 15, wherein The combustion processing chamber includes a gas storage chamber 13, a combustion chamber 8 and a reforming chamber 10, the gas storage chamber 13, the combustion chamber 8 and the reforming chamber 10 are sequentially connected in series, and between the gas storage chamber 13 and the combustion chamber 8 A first air-permeable partition 14 is provided, a second air-permeable partition 9 is provided between the combustion chamber 8 and the reforming chamber 10, the gas inlet of the gas channel 12 communicates with the gas outlet of the reforming chamber 10, and the gas channel 12 The gas outlet of the gas outlet communicates with the gas inlet of the SOFC stack 15; in the present embodi...

Embodiment 2

[0066] Such as figure 1 and figure 2As shown, it is a method for adjusting the output power of a solid oxide fuel cell, including a solid oxide fuel cell and a control unit, and the solid oxide fuel cell includes a combustion processing chamber, a gas channel 12 and an SOFC stack 15, wherein The combustion processing chamber includes a gas storage chamber 13, a combustion chamber 8 and a reforming chamber 10, the gas storage chamber 13, the combustion chamber 8 and the reforming chamber 10 are sequentially connected in series, and between the gas storage chamber 13 and the combustion chamber 8 A first air-permeable partition 14 is provided, a second air-permeable partition 9 is provided between the combustion chamber 8 and the reforming chamber 10, the gas inlet of the gas channel 12 communicates with the gas outlet of the reforming chamber 10, and the gas channel 12 The gas outlet of the gas outlet communicates with the gas inlet of the SOFC stack 15; in the present embodim...

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Abstract

The invention relates to an output power adjustment method for a solid oxide fuel cell. The method comprises the solid oxide fuel cell and a control unit. The method is characterized by comprising: according to different fuels, controlling a first electromagnetic valve and a third electromagnetic valve to ensure that a set ratio B1 of fuel gases in a combustion chamber and a reforming chamber is within a range from 1:3+ / -5% to 1:8+ / -5%; controlling output flow of a second electromagnetic valve to ensure that a set ratio B2 of air to fuel gas in the combustion chamber is within a range from 2.8+ / -10% to 7.5+ / -10% and more CO2, CO1 and H2 in the combustion chamber permeate the reforming chamber; and controlling output flow of a fourth electromagnetic valve to ensure that a set ratio B3 of steam to fuel gas in the reforming chamber is within a range from 2.5+ / -10% to 10+ / -10% and more CO2, CO and H22 flowing into the reforming chamber are transformed into CO and H2. The method has the advantages that unnecessary fuel consumption is reduced, effective service cycle of fuel is prolonged, fuel utilization rate is increased, and operation cost is lowered.

Description

technical field [0001] The invention relates to a method for adjusting the output power of a solid oxide fuel cell, which uses single-chip microcomputer technology and according to the output power of the battery to control the fuel supply flow of the battery to achieve the purpose of adjusting the output power of the battery. Background technique [0002] Over the years, people have been trying to find an energy utilization method that has high energy utilization efficiency and does not pollute the environment, and fuel cells are an ideal power generation technology. The fuel cell has the following characteristics: 1) High energy conversion efficiency, it directly converts the chemical energy of the fuel into electrical energy without the combustion process in the middle, so it is not limited by the Carnot cycle. The fuel-to-electricity conversion efficiency of the fuel cell system is 45% to 60%, while the conversion efficiency of thermal power and nuclear power is 30% to 4...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/04858
CPCH01M8/0494Y02E60/50
Inventor 梁波吴钢徐盛南
Owner FOSHAN SUOFUKE HYDROGEN ENERGY CO LTD
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