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Experimental investigation of effect of refrigerant gases,compressor lubricant and operating conditions on performance of a heat pump

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Journal of Central South University 2021年第11期28卷 3556-3568页

作者： AFSHARI Faraz SÖZEN Adnan KHANLARI Ataollah TUNCER Azim Doğuş ALI Hafiz Muhammad Department of Mechanical Engineering Erzurum Technical UniversityErzurumTurkey Department of Energy Systems Engineering Gazi UniversityAnkaraTurkey Department of Mechanical Engineering Faculty of EngineeringTarsus UniversityMersinTurkey Department of Energy Systems Engineering Burdur Mehmet Akif Ersoy UniversityBurdurTurkey Natural and Applied Science Institute Gazi UniversityAnkaraTurkey Mechanical Engineering Department King Fahd University of Petroleum and MineralsDhahran 31261Saudi Arabia Interdisciplinary Research Center for Renewable Energy and Power Systems(IRC-REPS) King Fahd University of Petroleum and MineralsDhahran 31261Saudi Arabia

In the field of heat pumps,there are a number of parameters that affect the performance and efficiency of the apparatus,which have been the subject of studies by individual researchers in the *** study describes an experimental method in order to investigate the effects of some significant parameters on heat pump *** this regard,a laboratory heat pump setup has been utilized to operate in different working conditions for achieving an appropriate estimation to find out effects of mentioned parameters such as refrigerant type and charge amount,compressor oil viscosity,compressor cooling fan,secondary fluids temperature and flow *** refrigerants have been selected and used as circulating fluid in the installed heat *** this work has been devoted to a detailed attempt to recognize the effects of various parameters on the coefficient of performance(COP) value,an appropriate method has been carried out to survey the obtained results by using economic *** was revealed that one of the main parameters is refrigerant charge amount which has a notable effect on *** temperature of the heat source was also tested and the performance of the system increased by more than 11% by employing mentioned modifications and various operating *** addition,by selecting a low viscosity compressor oil,the system performance increased by 18%.This improvement is more than 6% for the case that cooling fan is installed to cool the compressor element.

关键词： heat pump efficiency coefficient of performance(COP) performance compressor oil charge amount

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