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Foam metal composite phase change material heat storage temperature-difference power generation device

A composite phase change material and metal foam technology, which is applied in the field of metal foam composite phase change material heat storage and thermoelectric power generation devices, to achieve the effects of easy acquisition, improved thermal stability, and improved efficiency

Inactive Publication Date: 2014-11-05
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The field of thermoelectric power generation in China is currently at the stage of introduction, and the development and application of metal foam composite phase change energy storage materials combined with thermoelectric power generation is almost blank

Method used

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  • Foam metal composite phase change material heat storage temperature-difference power generation device
  • Foam metal composite phase change material heat storage temperature-difference power generation device

Examples

Experimental program
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Effect test

Embodiment 1

[0027] The present invention provides a metal foam composite phase change material heat storage thermoelectric power generation device, such as figure 1 , figure 2 shown.

[0028] The outer wall of the high-temperature flue gas carbon steel pipeline 1 is equipped with a small partition sealed carbon steel container 2, and the small partition sealed carbon steel container 2 is filled with a foamed metal composite phase change energy storage material 3, which is a foam metal Cu as a skeleton, and the phase change material for KHF 2 , the phase transition temperature is 196°C. The small partition sealed container 2 is closely connected with the hot end of the thermoelectric power generation module 5 through the thermal conductive glue 4 , and the cold end of the thermoelectric power generation module 5 is connected with the heat dissipation block 6 . The heat dissipation block 6 is connected with cooling circulating water 7 , and its outer side is connected with heat dissipat...

Embodiment 2

[0032] This embodiment applies a metal foam composite phase change material heat storage temperature difference power generation device provided in Example 1. The difference is that the small partition sealed container 2 is made of aluminum alloy material; the small partition sealed aluminum alloy container 2 is filled with foam metal composite The phase change energy storage material 3 is Al foam metal as the skeleton, the phase change material is AlCl3, and the phase change temperature is 192°C; the AlCl3 phase change material accounts for 85% of the total weight; the high temperature flue gas aluminum alloy pipe 1 is equipped with aluminum alloy fins 9. The working engineering of embodiment 2 is identical with embodiment 1.

Embodiment 3

[0034] This embodiment applies a metal foam composite phase change material heat storage temperature difference power generation device provided in Example 1. The difference is that the small partition sealed container 2 is made of copper alloy material; the small partition sealed copper alloy container 2 is filled with foam metal composite The phase change energy storage material 3 is made of Cu foam metal as the skeleton, the phase change material is 50% LiF / 50% LiOH, and the phase change temperature is 427°C; the phase change material accounts for 80% of the total weight; the internal assembly of the high temperature flue gas copper alloy pipe 1 There are copper alloy ribs 9. The working engineering of embodiment 3 is identical with embodiment 1.

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Abstract

The invention relates to a foam metal composite phase change material heat storage temperature-difference power generation device. The device comprises a plurality of small separated sealed containers arranged on the outer wall of a high-temperature flue gas pipeline in a sleeved mode. The small separated sealed containers are filled with foam metal composite phase change materials. The outer sides of the small separated sealed containers are closely connected with the hot end of a temperature-difference thermoelectric power generation module through a thermally-conductive adhesive. The shape of the inner sides of the small separated sealed containers is the same as the shape of the outer wall of the high-temperature flue gas pipeline, and the inner sides of the small separated sealed containers make close contact with the outer wall of the high-temperature flue gas pipeline; the outer sides of the small separated sealed containers are planes connected with the hot end of the temperature-difference thermoelectric power generation module, and the cold end of the temperature-difference thermoelectric power generation module is connected with a radiating block. The radiating block is filled with circulating cooling water, and the outer side of the radiating block is connected with radiating fins. According to the device, the foam metal composite phase change heat storage materials are combined with temperature-difference thermoelectric power generation devices to generate power, and therefore the efficiency of temperature-difference thermoelectric power generation can be effectively improved. The device can be conveniently installed on a boiler pipeline or an automobile exhaust pipeline and is reliable in power generation performance.

Description

technical field [0001] The invention relates to the utilization technology of boiler flue gas waste heat and automobile tail gas waste heat, and more specifically relates to a foam metal composite phase change material heat storage temperature difference power generation device. Background technique [0002] At present, industrial boilers can be divided into three types: coal-fired, oil-fired and gas-fired boilers. More than 60% of my country's coal is consumed in power generation, and more than 50% of the energy generated by fuel in heat engines such as internal combustion engines and steam turbines is wasted in the form of heat energy. In the field of petroleum refining, the light hydrocarbon steam reforming hydrogen production unit is equipped with a reformer, and the heat source is released in the radiation chamber of the reformer to generate high-temperature flue gas with a temperature of about 1050-1150°C; the convection section of the conventional hydrogen production ...

Claims

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Application Information

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IPC IPC(8): H02N11/00
Inventor 袁曦明袁一楠
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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