气候变化领域集成服务门户(CCPortal): A novel distributed energy system using high-temperature proton exchange membrane fuel cell integrated with hybrid-energy heat pump

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DOI	10.1016/j.enconman.2021.113990
	A novel distributed energy system using high-temperature proton exchange membrane fuel cell integrated with hybrid-energy heat pump
	Wu W.; Zhai C.; Sui Y.; Zhang H.
发表日期	2021
ISSN	1968904
卷号	235
英文摘要	Distributed energy systems based on proton exchange membrane fuel cell (PEMFC) pave a promising technological pathway to achieve carbon neutrality. The waste heat from PEMFC can be well recovered for cooling/heating, but additional systems are required if the available waste heat is not enough to meet the building cooling/heating demands. To achieve a dynamic supply–demand match efficiently and flexibly, this study proposes a novel PEMFC distributed energy system integrated with a hybrid-energy heat pump (HEHP). It can flexibly switch between a single absorption heat pump under sufficient waste heat and a hybrid absorption-compression heat pump under deficient waste heat. The integrated PEMFC-HEHP system is characterized and optimized using a validated model under different working conditions and hybrid configurations. The equivalent power density and fuel cell efficiency can be improved by 18.5% and 7.9% with supply temperatures of −10–10 °C for cooling, and be improved by 54.8% and 20.3% with supply temperatures of 40–60 °C for heating. Optimization yields a maximum equivalent power density of 4.341 kW/m2 in cooling mode and 5.357 kW/m2 in heating mode, compared to 3.290 kW/m2 of the individual PEMFC system. A higher absorption fraction enhances the PEMFC equivalent power while a higher compression fraction improves the HEHP cooling/heating capacity, the hybrid configuration needs to be determined by comprehensively considering the required cooling/heating loads and the available waste heat. The results can facilitate the better development of PEMFC distributed energy systems. © 2021 Elsevier Ltd
英文关键词	Absorption-compression cycle; Distributed energy; Heat recovery; Hybrid-energy heat pump; Proton exchange membrane fuel cell
scopus关键词	Absorption cooling; Cooling systems; Heat pump systems; Proton exchange membrane fuel cells (PEMFC); Waste heat; Absorption-compression cycle; Distributed energies; Distributed energy systems; Heat pumps; Hybrid configurations; Hybrid energy; Hybrid-energy heat pump; Power densities; Proton-exchange membranes fuel cells; Supply temperatures; Waste heat utilization
来源期刊	Energy Conversion and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/177063
作者单位	School of Energy and Environment, City University of Hong Kong, Hong Kong, Hong Kong; Department of Microelectronic Science and Engineering, Ningbo University, Ningbo, 315211, China
推荐引用方式 GB/T 7714	Wu W.,Zhai C.,Sui Y.,et al. A novel distributed energy system using high-temperature proton exchange membrane fuel cell integrated with hybrid-energy heat pump[J],2021,235.
APA	Wu W.,Zhai C.,Sui Y.,&Zhang H..(2021).A novel distributed energy system using high-temperature proton exchange membrane fuel cell integrated with hybrid-energy heat pump.Energy Conversion and Management,235.
MLA	Wu W.,et al."A novel distributed energy system using high-temperature proton exchange membrane fuel cell integrated with hybrid-energy heat pump".Energy Conversion and Management 235(2021).