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Theoretical Study on the Rankine-Rankine Refrigeration Cycle System Driven by Heavy Truck Waste Heat
Received date: 2013-12-11
Revised date: 2014-01-22
Online published: 2014-02-28
The paper established a Rankine-Rankine refrigeration cycle system driven by heavy truck engine coolant waste heat, which uses R245fa as working medium. The basic principle and structural characteristics of the system are analyzed. According to the system analysis, the mathematical model is established. The effects of generating temperature, condensation temperature and evaporation temperature on the system performance are investigated. The COP (coefficient of performance) reaches 0.254, when the generating temperature is 85oC, the condensation temperature is 50oC and the evaporation temperature is 5oC. The Rankine-Rankine refrigeration cycle system has the advantages of small size, easy to control and fast response, although the COP is lower than that of the absorption refrigeration under the same condition. We can believe that Rankine-Rankine refrigeration cycle system is feasible to recovery engine coolant waste heat.
Key words： Rankine-Rankine cycle; R245fa; automobile waste heat; refrigeration
WANG Ling-bao , BU Xian-biao , LI Hua-shan , MA Wei-bin . Theoretical Study on the Rankine-Rankine Refrigeration Cycle System Driven by Heavy Truck Waste Heat[J]. Advances in New and Renewable Energy, 2014 , 2(1) : 76 -81 . DOI: 10.3969/j.issn.2095-560X.2014.01.013
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