Study on heat transfer coupling mechanism of direct thermoelectric conversion with regenerative cooling for supersonic combustor applications

doi:10.1016/j.applthermaleng.2023.122218

	Study on heat transfer coupling mechanism of direct thermoelectric conversion with regenerative cooling for supersonic combustor applications
	Gao EK(高尔康); Zhong FQ(仲峰泉)
通讯作者	Zhong, Fengquan(fzhong@imech.ac.cn)
发表期刊	APPLIED THERMAL ENGINEERING
	2024-02-01
卷号	238 页码:15
ISSN	1359-4311
摘要	Direct thermoelectric conversion is a promising technology that converts aerodynamic and combustion heat into electric energy for thermal management of supersonic combustors. However, the heat transfer process of direct thermoelectric conversion coupled with regenerative cooling of supersonic combustors is rarely studied and the coupling mechanism is not clear. In this paper, a novel "SANDWICH" thermoelectric/cooling integrated model (TCIM) proposed by the present work based on Skutterudite (SKD) or Half-Heusler (HH) thermoelectric conversion devices is analytically studied. The energy conversion and heat transfer mechanism of the direct thermoelectric conversion coupled with regenerative cooling are revealed. Using the analytical model, the effects of structural parameters of thermoelectric conversion device and the heat transfer coefficient of regenerative cooling on the energy conversion efficiency and output power are investigated for two typical thermal conditions corresponding to the isolation part and the combustion part of a Mach 2.5 supersonic combustor. The analytical results showed that larger size of the thermoelectric conversion device can effectively improve the conversion efficiency and output power per unit area. Increasing the heat transfer coefficient of regenerative cooling can lower the structural temperature and increase the output power per unit area by more than 12%. Furthermore, with a multi-parameter optimization method based on Genetic Algorithm, optimization for the output power per unit area is conducted with variations of the structural parameters of TCIM under constraints of the tolerance temperature and the types of thermoelectric conversion devices. A more than 10% increase in the output power per unit area for both SKD and HH TCIMs are achieved via the optimization.
关键词	Direct thermoelectric conversion Regenerative cooling Supersonic combustor Analytical model Genetic algorithm
DOI	10.1016/j.applthermaleng.2023.122218
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001140171100001
关键词[WOS]	AVIATION KEROSENE ; POWER-GENERATION ; HYDROCARBON FUEL
WOS研究方向	Thermodynamics ; Energy & Fuels ; Engineering ; Mechanics
WOS类目	Thermodynamics ; Energy & Fuels ; Engineering, Mechanical ; Mechanics
资助项目	Natural Science Foundation of China[12272381]
项目资助者	Natural Science Foundation of China
论文分区	一类
力学所作者排名	1
RpAuthor	Zhong, Fengquan
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/94184
专题	高温气体动力学国家重点实验室
推荐引用方式 GB/T 7714	Gao EK,Zhong FQ. Study on heat transfer coupling mechanism of direct thermoelectric conversion with regenerative cooling for supersonic combustor applications[J]. APPLIED THERMAL ENGINEERING,2024,238:15.
APA	高尔康,&仲峰泉.(2024).Study on heat transfer coupling mechanism of direct thermoelectric conversion with regenerative cooling for supersonic combustor applications.APPLIED THERMAL ENGINEERING,238,15.
MLA	高尔康,et al."Study on heat transfer coupling mechanism of direct thermoelectric conversion with regenerative cooling for supersonic combustor applications".APPLIED THERMAL ENGINEERING 238(2024):15.