Thermoelectric power generating component performance measuring device and method thereof

Abstract

The invention relates to a detection device and the method for the thermoelectric electric power generation performance. The detection device is made up of the thermal resource, the cooling end, the DC, the standard load resistance, the multicenter data collector, the computer ,the thermocouple and the vacuum pump. The method is to install the two thermoelectric power generation devices between the thermal resource and the cooling end at the same time, the output of which is connected with the standard load resistance, so it can get the output power by changing the standard load resistance which contrasts to the input power to get the energy conversion efficiency. The invention can avoid the heat loss of the input measurement system by using the double detection symmetrical thermal resource, comparing to the present method, the device has the simple structure and high efficiency, and also it can detect the energy conversion efficiency directly.

Description

technical field [0001] The invention relates to a device for measuring the performance of thermoelectric power generation components and a method thereof, belonging to the technical field of thermoelectric conversion. Background technique [0002] Thermoelectric power generation is a technology that uses the Seebeck effect of semiconductor materials to directly convert thermal energy into electrical energy. It has the characteristics of high system reliability, long life, and wide adaptability. As a special power source, the isotope thermoelectric generator with isotope as the heat source and thermoelectric power generation technology as the core has important applications in space exploration and special military occasions; at the same time, as a green energy technology, thermoelectric Waste heat power generation has broad application prospects and potential economic and social benefits, and has attracted extensive attention from developed countries in recent years. [000...

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Problems solved by technology

U.S. Patent (PCT / US03 / 14771) "A thermoelectric device teststructure", document "Radioisotope Thermoelectric Generators Basedon Segmented BiTe / PbTe-BiTe / TAGS / PbSnTe" (Malachy McAlonan, etal, "Space Technology and Applications InternationalForum-STAIF2006", edited by M.S.El-Genk, p573-580), "TestResults and Performance Comparison sons of Coated and Un-coated Skutterudite Based Segmented Unicouple" (M.S.El-Genk, et al, "Energy Conversion and Management", 2006, volume 47, p174- 200) introduced some methods for measuring the open circuit voltage, output power and energy conversion efficiency of thermoelectric power generation components; these methods have a common feature, that is, a single-sided heat source is used to provide heat to a pair or a group of components. The thermal insulation material wraps the heat source. Because it is difficult to prevent heat conduction and heat radiation, the method of unilateral heat source causes a large loss of heat input into the measurement system; The heat of components is calibrated, and the energy conversion efficiency of components is calculated by semi-analytical method, which not only increases the complexity of the measurement system, but also cannot be directly and effectively measured

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