Flat plate type thermoelectric generator with shunting fins, and fin angle determination method thereof

A technology for thermoelectric generators and determination methods, which is applied in the direction of generators/motors, electrical components, engine components, etc., and can solve problems such as uneven temperature distribution on the wall surface of the hot end of TEG, inconsistent output of a single thermoelectric power generation module, and influence on TEG output power, etc. , to achieve the effect of improving the output performance and reducing the overall temperature difference

Active Publication Date: 2018-08-10
JIANGSU UNIV
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Problems solved by technology

However, there is heat loss during the flow of exhaust gas, resulting in uneven temperature distribution on the hot end wall of the

Method used

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  • Flat plate type thermoelectric generator with shunting fins, and fin angle determination method thereof
  • Flat plate type thermoelectric generator with shunting fins, and fin angle determination method thereof
  • Flat plate type thermoelectric generator with shunting fins, and fin angle determination method thereof

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Embodiment Construction

[0036] Such as Figure 1-3 As shown, a flat-plate thermoelectric generator with shunt fins includes a heat collection box 9, a heat conduction fin 2, a flow splitter, a thermoelectric power generation module 3, and a temperature sensor 4; the heat conduction fin 2 is attached to the set On the wall a20 on both sides of the heat box and the wall a'21 of the heat collection box; the splitter fins are connected to the upper wall b18 and the lower wall b'19 inside the heat collection box, including the first splitter fin 5, the second splitter fin Fins 6, third splitter fins 7; the thermoelectric power generation modules 3 are evenly distributed on both side walls outside the heat collecting box, including thermoelectric power generation module 1 zone 10, thermoelectric power generation module 2 zone 11, thermoelectric power generation module Zone 3 12 and zone 4 of thermoelectric power generation module 13, the inlet end cover 1 of the heat collector box is close to zone 1 of the...

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Abstract

The invention discloses a flat plate type thermoelectric generator with shunting fins, and a fin angle determination method thereof. Three columns of shunting fins are arranged in an air flow direction, including a first shunting fin (mounted in the middle part of a heat collection box with a fixed angle of 45 degrees), a second shunting fin (mounted between the first and third shunting fins witha variable angle of <alpha>), and a third shunting fin (mounted on the tail part of the heat collection box with a fixed angle of 90 degrees). When tail gas flows from an inlet to the heat collectionbox, the tail gas flows to the two ends attached with heat conducting fins under the shunting effect of the shunting fins, so that the wall surface temperature of a hot end is increased; and meanwhile, the second shunting fin is designed with a reasonable angle of <alpha>, so that the overall temperature distribution on the wall surface can be more uniform, and the outputs of the modules are consistent. The flat plate type thermoelectric generator is capable of improving efficiency, simple in structure and wide in application prospect.

Description

technical field [0001] The invention belongs to the field of thermoelectric power generation, and is a flat-plate thermoelectric generator with shunt fins and a method for determining the angle of the fins. The invention can effectively increase the temperature of the wall surface at the rear end of the heat collection box, so that the overall temperature distribution of the wall surface is even , thereby improving the output performance of the thermoelectric generator. Background technique [0002] China is a country with a large number of automobiles. At the end of 2016, the number of civil automobiles in the country reached 194.4 million, and the vast majority of automobile engines are gasoline engines or diesel engines. About 65% of the energy of fuel combustion is lost in the form of heat, causing huge losses. of energy waste. [0003] The thermoelectric generator (TEG) is an energy recovery technology developed based on the Seebeck effect. When there is a temperature ...

Claims

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Application Information

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IPC IPC(8): H02N11/00F28F21/08F28F21/00F02G5/02
CPCF02G5/02F28F21/00F28F21/081H02N11/002Y02T10/12
Inventor 汪若尘罗丁余未孟祥鹏孙泽宇
Owner JIANGSU UNIV
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