Theoretical performance analysis of hydrate-based refrigeration system

R. Matsuura, K. Watanabe, Y. Yamauchi, H. Sato, and R. Ohmura



This paper reports theoretical performance analysis of the hydrate-based refrigeration system. The hydrate-based refrigerator transfers thermal energy through the cycle of following processes: adiabatic compression of guest compounds and water, hydrate formation, adiabatic expansion of hydrates, hydrate dissociation. The theoretical analyses and COP calculations were performed in the each of the following hydrate-forming systems: HFC-32+cyclopentane(CP) +water, Kr+CP+water, and HFC-41+CP+water system. Practical utilityof hydrate-based refrigerator is discussed based on the comparison with the Carnot cycle.

Published in: Renewable Energy & Power Quality Journal (RE&PQJ, Nº. 17)
Pages: 118-122 Date of Publication: 2019/07/15
ISSN: 2172-038X Date of Current Version:2019/04/10
REF: 238-19 Issue Date: July 2019
DOI:10.24084/repqj17.238 Publisher: EA4EPQ

Authors and affiliations

R. Matsuura, K. Watanabe, Y. Yamauchi, H. Sato, and R. Ohmura
Department of Mechanical Engineering Keio University. Kouhoku-ku,Yokohama, 223-8522 (Japan)

Key words

Clathrate hydrates, Refrigeration system, Heat pump, Renewable energy


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