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http://dx.doi.org/10.5916/jkosme.2007.31.6.723

Performance Analysis for CO2 System with Sub-cooling loop  

Kim, Jin-Man (㈜대주기계 유체기계기술연구소)
Ko, Sung-Gyu (인제대학교 대학원 기계공학과)
Kim, Moo-Geun (인제대학교 기계자동차공학부)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.31, no.6, 2007 , pp. 723-728 More about this Journal
Abstract
In order to evaluate the performance of carbon dioxide cycle with a sub-cooling loop. a simulation system was developed to predict the steady state of $CO_2$ trans-critical cycle. Mathematical models are derived to describe the relationships between the system's coefficient of performance and other operating parameters The mathematical models are based entirely on the basic mass and energy conservation law and thermodynamic and transport properties of carbon dioxide A parametric study has been conducted in order to investigate the effect of sub-cooling loop and various operating conditions on the cycle performance. An optimal mass fraction of a refrigerant flowing through sub-cooling cycle existed for the given evaporating temperature, high pressure and air inlet temperature through gas cooler.
Keywords
Carbon dioxide; Sub-cooling; Optimal; Modelling; Trans-critical;
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