高功率便携式生物质燃烧驱动温差发电机的研发  

Development of a High-Capacity Portable Biomass-Combustion-Powered Thermoelectric Generator

作　　者：Guoneng Li Jie Ying Minbo Yi Youqu Zheng Yuanjun Tang Wenwen Guo 

机构地区：[1]Department of Energy and Environment System Engineering,Zhejiang University of Science and Technology,Hangzhou 310023,China

出　　处：《Engineering》2023年第5期192-201,I0005,共11页工程（英文）

基　　金：supported by the Key Program of the Natural Science Foundation of Zhejiang Province(LZ21E060001);the Key Research and Development Plan of Zhejiang Province(2020C03115)。

摘　　要：利用生物质燃烧产生电力是贫困地区解决照明、通讯和医疗等基本需求的重要方式。本文开发和测试了一种高功率便携式生物质燃烧驱动的温差发电机(biomass-combustion-powered thermoelectric generator,BCP-TEG),详细研究了其温差分布、功率负载特性和不同层级的效率,并开展了现场应用测试。研究结果发现该温差发电机在自身重量为7.6 kg的条件下可同时产生750 W的热力和23.4 W的电力,热电联供效率达到32.3%。温差发电机的发电净功率密度为2.41 W·kg^(-1),均高于所有基于闭式循环冷却的文献报道结果。此外,利用本文开发的温差发电机燃烧1 kg的木条所发出的电能可充满1个容量为6.2 A·h的3.7 V锂电池。最后,论文详细讨论了BCP-TEG研究领域存在的问题和未来可研究的方向。Generating electricity from biomass combustion is an essential means of supporting basic demands in deprived regions,including lighting,communication,and medical care.In this work,a high-capacity portable biomass-combustion-powered thermoelectric generator(BCP-TEG)is developed and tested.Temperature distribution,power load feature,efficiencies at different levels,and a field test are comprehensively explored.The results show that the proposed 7.6 kg BCP-TEG can cogenerate a heating power of 750 W and an electric power of 23.4 W,corresponding to a combined heat and power(CHP)efficiency of 32.3%.The net power density of 2.41 W·kg^(-1)is much greater than those in previous reports based on water closed-loop cooling.Furthermore,this study demonstrates that a 3.7 V battery of 6.2 Ah can be fully charged by burning 1 kg of wood sticks.Finally,we provide a comprehensive discussion identifying existing issues and future opportunities in this field.

关 键 词：温差发电机 热电联供 闭式循环 锂电池 负载特性 应用测试 功率密度 BCP 

分 类 号：TM913[电气工程—电力电子与电力传动]