Optimization model of single stage vapour compression refrigeration systems

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Dept. of Applied Thermodynamics, University Politehnica of Bucharest, Romania [1 ]
不详 [2 ]
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UPB Sci Bull Ser D | 2012年 / 3卷 / 91-106期
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The paper presents an optimization model of single stage vapour compression refrigeration systems (VCRS) based on the thermodynamics of irreversible processes. The targeted operation regime is the economical one, corresponding to optimum design conditions of VCRS and which leads to a maximum cooling efficiency (COPmax) for a certain nominal cooling capacity. The model allows determining the optimum constructive and functional parameters which lead to COPmax depending on the refrigerant type. A numerical simulation has been carried out with respect to the cooled space temperature for R134a. Taking into consideration a VCRS system optimumly designed, in function of the cooling capacity, the cooling efficiency has a maximum maximorum value corresponding to an optimum cooling capacity lower than the nominal one.
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