Study of performance characteristics of a small Stirling refrigerator

Autor:	Toshio Otaka, Masahiro Ota, Moriyoshi Sakamoto, Kazuhiko Murakami
Rok vydání:	2002
Předmět:	Fluid Flow and Transfer Processes Stirling engine Materials science Nuclear engineering Refrigerator car Thermodynamics Refrigeration Coefficient of performance Condensed Matter Physics Cooling capacity law.invention Volume (thermodynamics) law Stirling cycle Working fluid
Zdroj:	Heat Transfer?Asian Research. 31:344-361
ISSN:	1523-1496 1099-2871
DOI:	10.1002/htj.10033
Popis:	A prototype Stirling cycle refrigerator employing helium as a working fluid was investigated to determine whether a freon-free machine was a viable alternative for the current household refrigerator. A displacer-type or β-type Stirling cycle machine of 100-W capacity was designed and tested using varying design parameters such as dead volume ratio, working fluids, the ratio of the compression volume to the expansion volume, and the phase difference between a power piston and displacer. The detrimental effect of the dead space on the refrigeration capacity was confirmed. The refrigeration produced by nitrogen in an expansion space was 28% less than that produced by helium. The optimum volume ratio and the phase difference for maximum refrigeration was determined under the design operation conditions. Moreover, the refrigeration correlation formula as a function of these parameters was obtained. © 2002 Wiley Periodicals, Inc. Heat Trans Asian Res, 31(5): 344–361, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/htj.10033
Databáze:	OpenAIRE
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