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System and method for cold start and heat preservation of fuel cell by using solar energy

A fuel cell and heat preservation system technology, applied in the direction of fuel cells, fuel cell control, fuel cell additives, etc., can solve the problems of energy waste and low efficiency, and achieve the effects of reducing power consumption, avoiding energy conversion devices, and simple structure

Active Publication Date: 2022-04-19
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both of these methods have intermediate energy conversion, which is easy to cause energy waste and low efficiency

Method used

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  • System and method for cold start and heat preservation of fuel cell by using solar energy
  • System and method for cold start and heat preservation of fuel cell by using solar energy
  • System and method for cold start and heat preservation of fuel cell by using solar energy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] In one or more embodiments, a fuel cell cold start and heat preservation system using solar energy is disclosed, referring to figure 1 , including:

[0043] The fuel cell 8 is provided with a heat-absorbing shell 9 outside;

[0044] The solar module includes a telescopic bracket 7, and a lens group connected to the telescopic bracket 7 for focusing solar energy; a plane mirror 10 is arranged below the lens group, and the plane mirror 10 is used to reflect the focused radiant energy of the lens group to On the heat-absorbing casing 9 of the fuel cell;

[0045] The control unit is used to calculate the target heating temperature of the fuel cell heat absorbing housing 9 according to the required heat absorption of the fuel cell; based on the heating temperature, predict the required moving distance of the telescopic support 7 relative to the initial position. Wherein, the initial position of the telescopic bracket 7 is the position where the focal plane 4 of the lens gr...

Embodiment 2

[0064] In one or more embodiments, a fuel cell cold start and heat preservation system using solar energy is disclosed, referring to Figure 5 The difference between this embodiment and the system in Embodiment 1 is that the fuel cell is placed on the battery placement platform 12, and the ground is not blocked.

[0065] In this embodiment, the structures of the telescopic bracket 7 and the lens group are the same as those in Embodiment 1, and a plane mirror 10 and a curved mirror 11 are arranged below the lens group; wherein, the plane mirror 10 is arranged on both sides of the fuel cell, which can Reflect sunlight to the side of the fuel cell; curved mirrors 11 are arranged on both sides of the battery placement platform 12 to reflect sunlight to the bottom of the fuel cell 8 .

[0066] combine Image 6 , when the stack temperature is lower than 0°C for cold start, it enters the cold start working condition, at this time, the maximum concentration mode is turned on; at this...

Embodiment 3

[0070] On the basis of the fuel cell cold start and heat preservation system utilizing solar energy disclosed in Embodiment 1 or Embodiment 2, a fuel cell cold start and heat preservation method utilizing solar energy is disclosed. Figure 9 , including the following process:

[0071] (1) Obtain the ambient temperature where the fuel cell 8 to be tested is located;

[0072] (2) Determine whether the stack temperature is lower than the set temperature, if so, enter (3); otherwise, enter (4);

[0073] (3) Control the telescopic support 7 to be in the initial position, and enter the operating condition after the fuel cell is started successfully;

[0074] (4) According to the required heat absorption of the fuel cell, calculate the target heating temperature of the fuel cell heat-absorbing housing 9; according to the heating temperature, obtain the required moving distance of the telescopic support 7 through the neural network prediction model, and control the telescopic support...

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PUM

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Abstract

The invention discloses a fuel cell cold start and heat preservation system and method using solar energy, and the system comprises a fuel cell which is externally provided with a heat absorption housing; the solar module comprises a telescopic bracket and a lens group which is connected to the telescopic bracket and is used for focusing solar energy; a reflecting mirror is arranged below the lens group and is used for reflecting energy focused by the lens group to a heat absorption shell of the fuel cell; the control unit is used for calculating the target heating temperature of the heat absorption shell of the fuel cell according to the heat absorption amount required by the fuel cell; and based on the heating temperature, obtaining the required moving distance of the telescopic bracket through a neural network prediction model. According to the invention, solar incident light is concentrated by the Fresnel lens at high power to generate radiant heat energy to heat the fuel cell, the material price of the lens is low, the concentrating system is simple in structure and convenient to disassemble and assemble, and can be permanently used after being installed, and when a heat source is not needed, the fuel cell can be disassembled or replaced by a photovoltaic cell or a solar heat collector for use.

Description

technical field [0001] The invention relates to the technical field of proton exchange membrane fuel cells, in particular to a fuel cell cold start and heat preservation system and method utilizing solar energy. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] Proton exchange membrane fuel cell is a device that can directly convert hydrogen fuel and chemical energy in the air into electrical energy. It has the advantages of high efficiency, no noise, and no pollution. The optimum operating temperature range of proton exchange membrane fuel cells is 60-80°C, within which the fuel cells can reach the maximum rated power. [0004] When the fuel cell is started in a low temperature environment, water, as a product of the electrochemical reaction, is produced on the cathode of the proton exchange membrane. Affected by the low temperature enviro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04225H01M8/04302H01M8/0432H01M8/04701H01M8/1004H01M8/04298H01M8/04992
CPCH01M8/04268H01M8/1004H01M8/04302H01M8/04701H01M8/0432H01M8/04365H01M8/04305H01M8/04992Y02E60/50
Inventor 高明张慧颖王宇航韩奎华程星星齐建荟何锁盈
Owner SHANDONG UNIV