Studies of Heat Pumps Using Direct Expansion Type Solar Collectors

[+] Author and Article Information
Sadasuke Ito, Naokatsu Miura, Yasushi Takano

Department of System Design Engineering, Kanagawa Institute of Technology, Atsugi, 243-0292 Japane-mail: ito@sd.kanagawa-it.ac.jp

J. Sol. Energy Eng 127(1), 60-64 (Feb 07, 2005) (5 pages) doi:10.1115/1.1824102 History: Received October 21, 2003; Revised July 30, 2004; Online February 07, 2005
Copyright © 2005 by ASME
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Grahic Jump Location
Variation of evaporation temperature
Grahic Jump Location
Relation between COP and evaporation temperature
Grahic Jump Location
Variation of the temperatures at various locations when the feeler bulb was set at the location 0.6 m apart from the outlet of the evaporator
Grahic Jump Location
Relation between COP and the temperatures at the outlet of the expansion valve
Grahic Jump Location
Experimental results of the system using Type 2 panels
Grahic Jump Location
Experimental results of the system using Type 1 panels
Grahic Jump Location
Variation of COP and heat gain of water
Grahic Jump Location
Variation of temperatures at various locations, tw,1=40°C
Grahic Jump Location
Panels used as evaporators




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