干旱区生态环境知识资源中心(Arid): High Power Density Thermal Energy Storage With Phase Change Material in Enhanced Compact Heat Exchangers

Arid

DOI	10.1115/1.4064710
	High Power Density Thermal Energy Storage With Phase Change Material in Enhanced Compact Heat Exchangers
	Kannan, Sarath; Jog, Milind A.; Manglik, Raj M.
通讯作者	Manglik, RM
来源期刊	ASME JOURNAL OF HEAT AND MASS TRANSFER
ISSN	2832-8450
EISSN	2832-8469
出版年	2024
卷号	146 期号:5
英文摘要	Performance of a novel ultracompact thermal energy storage (TES) heat exchanger, designed as a microchannel finned-tube exchanger is presented. With water as the heating-cooling fluid in the microchannels, a salt hydrate phase change material (PCM), lithium nitrate trihydrate (LiNO3.3H(2)O), was encased on the fin side. To establish the hypothesis that small-length-scale encasement (<3 mm) of PCM substantially enhances heat transfer to yield very high power-density energy storage, heat exchanger designs with 10 and 24 fins/inch were considered. They were subjected to thermal cycling, or repeated heating (melting) and cooling (freezing), with inlet fluid flow mimicking diurnal variation between 42 degrees C and 25 degrees C (representing typical arid-region conditions) over an accelerated time period. By employing salt self-seeding to obviate subcooling during cooling or recrystallization, the TES was found to exhibit stable long-term (100 heating-cooling cycles) operation with very high PCM-side heat transfer coefficients (similar to 100-500 W/m(2) K) and storage power density (similar to 160-175 kW/m(3)). In fact, with optimization of heating-cooling fluid flowrate for given charging-discharging time period and exchanger size, power density >300 kW/m(3) can be achieved. The results clearly establish that highly compact heat exchangers used as TES units can provide very high-performance alternatives to conventional ones.
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001203430400003
WOS关键词	PERFORMANCE ; SYSTEMS
WOS类目	Thermodynamics ; Engineering, Mechanical
WOS研究方向	Thermodynamics ; Engineering
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/402960
推荐引用方式 GB/T 7714	Kannan, Sarath,Jog, Milind A.,Manglik, Raj M.. High Power Density Thermal Energy Storage With Phase Change Material in Enhanced Compact Heat Exchangers[J],2024,146(5).
APA	Kannan, Sarath,Jog, Milind A.,&Manglik, Raj M..(2024).High Power Density Thermal Energy Storage With Phase Change Material in Enhanced Compact Heat Exchangers.ASME JOURNAL OF HEAT AND MASS TRANSFER,146(5).
MLA	Kannan, Sarath,et al."High Power Density Thermal Energy Storage With Phase Change Material in Enhanced Compact Heat Exchangers".ASME JOURNAL OF HEAT AND MASS TRANSFER 146.5(2024).