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Heat management device used for fuel cell

A fuel cell and thermal management technology, used in fuel cell heat exchange, fuel cell additives, sustainable manufacturing/processing, etc. The effect of stable phase transition process, high phase transition enthalpy, and simple thermal management device

Inactive Publication Date: 2009-07-08
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology uses a very complex structure and control system to ensure the normal operation of the battery. This method undoubtedly increases the cost of the fuel cell. In addition, due to the use of a complex system, this method makes the fuel cell safe and reliable. greatly affected

Method used

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  • Heat management device used for fuel cell
  • Heat management device used for fuel cell
  • Heat management device used for fuel cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The phase change material (SPCM) of the present invention is prepared according to the following formula and process: take by weighing the solid erythritol of 56 mol% in molar percentage, and the solid trimethylolethane of 44 mol% in molar percentage, after being ground into fine powder, Mix well by mechanical method, heat to 200°C, and cool to room temperature.

Embodiment 2

[0024] The phase change material (SPCM) of the present invention is prepared according to the following formula and process: take by weighing the solid xylitol with a molar percentage of 90 mol%, and the solid neopentyl glycol with a molar percentage of 10 mol%, after being ground into a fine powder, mechanically Mix well, heat to 130°C, cool to room temperature and serve.

Embodiment 3

[0026] The phase change material (SPCM) of the present invention is prepared according to the following formula and process: take by weighing the solid sorbitol with a molar percentage of 45 mol%, and the solid 2-amino 2-methyl 1.3 propanediol with a molar percentage of 55 mol%, after being ground into a fine powder , Mix well by mechanical method, heat to 110 ℃, cool to room temperature and serve.

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Abstract

The invention discloses a heat management device used for a fuel cell. The fuel cell heat management device is made of a phase-change material, which has such characteristics that the phase-change material can release heat at low-temperature segment and absorb heat at high-temperature segment in the time rising process. The characteristics of the phase-change material can completely meet the requirement for the heat management device of the fuel cell. The heat management device made of the phase-change material has the advantages of simple structure, low cost, high safety, etc., and can overcome the disadvantages of the prior fuel cell heat management device, such as complex structure, high cost and poor reliability.

Description

technical field [0001] The invention relates to a thermal management device. Background technique [0002] Fuel cell (FC, FUEL CELL) is an electrochemical power generation device, which can directly convert chemical energy into electrical energy isothermally, without going through a heat engine process, and is not limited by the efficiency of the Carnot cycle. The energy conversion efficiency is as high as 40-60%. , At the same time, the battery also has the advantages of being environmentally friendly, hardly emitting nitrogen oxides and sulfur oxides, and reducing carbon dioxide emissions by more than 40% compared with conventional power plants. At present, fuel cell technology has become an important energy technology for energy saving and emission reduction. Proton exchange membrane fuel cell (PEMFC) is an earlier developed fuel cell, which has the advantages of low operating temperature and no electrolyte loss, etc., and has broad application prospects. [0003] Howev...

Claims

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Application Information

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IPC IPC(8): H01M8/04H01M8/04007
CPCY02E60/50Y02P70/50
Inventor 朱津裘
Owner SUN YAT SEN UNIV