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http://dx.doi.org/10.5916/jkosme.2011.35.2.238

The Characteristic Study of Capacity Control of an Industrial Cooler Using an Invertor Compressor with Varing the Ambient Temperatures  

Baek, Seung-Moon (부경대학교 냉동공조공학과)
Moon, Choon-Geun ((주)대일)
Kim, Eun-Pil (부경대학교 냉동공조공학과)
Jeong, Seok-Kwon (부경대학교 냉동공조공학과)
Yoon, Jung-In (부경대학교 냉동공조공학과)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.35, no.2, 2011 , pp. 238-243 More about this Journal
Abstract
The ambient temperature of the experimental conditions changes by varying the speed of the compressor and the electronic expansion valve opening. The effects of changing valve opening to the entire system has been investigated. The results show that the ambient temperatures of $35^{\circ}C$ and $30^{\circ}C$ controlled at 30Hz must be avoided. The capacity control range of the control compressor with changing speed is about 43~100% at $35^{\circ}C$, 43~100% at $25^{\circ}C$ and 48~100% at $10^{\circ}C$, respectively. The results show the capacity control range decreases with decreasing ambient temperature.
Keywords
Industrial cooler; Inverter; Electronic expansion valve; Superheat; Capacity control;
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