A thermoelectric generator for scavenging gas-heat: From module optimization to prototype test

Cheng, Fuqiang; Hong, Yanji; Li, Weiping; Guo, Xiaohong; Zhang, Hailong; Fu, Feng; Feng, Bingqing; Wang, Gang; Wang, Chao; Qin, Haibing

doi:10.1016/j.energy.2017.01.025

Cited by 32 publications

(11 citation statements)

References 31 publications

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“…Therefore, the conventional thermoelectric energy harvesters are used in space stations, spacecraft, satellites, missiles, etc., where the Δ T is large enough to generate decent electricity, even when the ZT values of the thermoelectric materials are not high. They are also proposed to be used to harvest the waste heat in automobiles' engines/exhausting system and heat pipes . This is despite the fact that their development has not been very successful due to their inability to generate suitable output power to match the rapid progress of the electrification of vehicles .…”

Section: Development Of Single‐source Energy Harvestersmentioning

confidence: 99%

Energy Harvesting Research: The Road from Single Source to Multisource

2018

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Energy harvesting technology may be considered an ultimate solution to replace batteries and provide a long-term power supply for wireless sensor networks. Looking back into its research history, individual energy harvesters for the conversion of single energy sources into electricity are developed first, followed by hybrid counterparts designed for use with multiple energy sources. Very recently, the concept of a truly multisource energy harvester built from only a single piece of material as the energy conversion component is proposed. This review, from the aspect of materials and device configurations, explains in detail a wide scope to give an overview of energy harvesting research. It covers single-source devices including solar, thermal, kinetic and other types of energy harvesters, hybrid energy harvesting configurations for both single and multiple energy sources and single material, and multisource energy harvesters. It also includes the energy conversion principles of photovoltaic, electromagnetic, piezoelectric, triboelectric, electrostatic, electrostrictive, thermoelectric, pyroelectric, magnetostrictive, and dielectric devices. This is one of the most comprehensive reviews conducted to date, focusing on the entire energy harvesting research scene and providing a guide to seeking deeper and more specific research references and resources from every corner of the scientific community.

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Section: Development Of Single‐source Energy Harvestersmentioning

confidence: 99%

Energy Harvesting Research: The Road from Single Source to Multisource

2018

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“…Results revealed that the maximum power output density decreases as leg length increase. Similarly, Cheng et al [15] performed an experiment study on thermoelectric leg area and length effects on module performance. They found that optimizing the leg length and area enabled the achievement of maximum power output.…”

Section: Introductionmentioning

confidence: 99%

Analysis of thermoelectric geometry in a concentrated photovoltaic-thermoelectric under varying weather conditions

Shittu

Tang

et al. 2020

Energy

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This study presents a detailed three-dimensional numerical investigation of the optimum thermoelectric geometry in a hybrid concentrated photovoltaicthermoelectric system under varying weather conditions. Four different thermoelectric leg geometries are considered and their effects on the performance of the hybrid system are studied. The effects of thermoelectric leg height, cross-sectional area and ceramic height on the hybrid system performance are investigated. Furthermore, the effect of convective heat transfer coefficient on the hybrid system performance is studied. The performance of the hybrid system with optimized thermoelectric geometry is compared with that of the hybrid system with original geometry for summer climatic conditions in London, United Kingdom for a duration of 24 h. Results show that thermoelectric geometry optimization can reduce significantly, the negative impacts of the variable weather conditions on the hybrid system performance. Furthermore, results show that the maximum hybrid system power output density with the optimized thermoelectric geometry decreased by 48.29% when the original geometry is used. This study will provide useful insights into thermoelectric geometry optimization in a hybrid system and optimum thermoelectric geometry for performance enhancement.

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“…In addition, it was found that decreasing contact resistances (electrical and thermal) could significantly increase the TEG performance. Cheng et al [43] presented a structural optimization of thermoelectric modules and the effect of TE leg area on the module performance was studied experimentally. The designed thermoelectric generator was for applications requiring low temperature such as waste heat recovery in hypersonic vehicles which has high heat flux from the scramjets.…”

Section: Leg Cross-sectional Areamentioning

confidence: 99%