SUN JinFei1; ZHU DongSheng1; YIN YingDe1; LI XiuZhen1
Source Publication中国科学技术科学英文版
AbstractA single cylinder rotary compressor was applied in the refrigerant injection air-source heat pump to improve the heating performance in cold regions. In this study, the performance of an R410A single cylinder rotary compressor vapor injection (SCRCVI) system was measured and analyzed by varying the compressor frequency f and injection pressure P inj at the ambient temperature T od =–10°C.The experimental results indicated that an optimum injection pressure to gain the maximum COP h (coefficient of performance) existed in the SCRCVI cycle. However, the maximum COP h of the SCRCVI system decreased as the increase of the frequency, and the maximum COP h was even lower than that of the CSVC system at high compressor frequency. Therefore, in view of the energy saving and emission reduction, the SCRCVI system should be switched to single stage compression system when the heating capacity demand could be satisfied at high compressor frequency f. Compared to the conventional single-stage vapor compression (CSVC) system, refrigerant injection could enhance the heating capacities and COP h by 28.2% and 7.91%, respectively. The average total mass flow rate of the SCRCVI system was 24.68% higher than that of the CSVC system. As the SCRCVI system worked at the optimum injection pressure, the variation trends of the different system parameters were investigatedin detail. These trends were reliably used tooptimize the refrigerant injection system design and the control strategy. The parameter of (Pinj–Ps) could be adopted as the signals to control the opening of the upper stage electronic expansion valve EEV1.
Funding Project[South Wisdom Valley Innovative Research Team Program] ; [Shunde District of Foshan City Government Office] ; [Guangzhou Collaborative Innovation Major Projects]
Document Type期刊论文
3.Guangdong Key Laboratory of New and Renewable Energy Research and Development
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
SUN JinFei,ZHU DongSheng,YIN YingDe,et al. experimentalresearchontheheatingperformanceofasinglecylinderrefrigerantinjectionrotarycompressorheatpumpwithflashtank[J]. 中国科学技术科学英文版,2018,061(012):1814.
APA SUN JinFei,ZHU DongSheng,YIN YingDe,&LI XiuZhen.(2018).experimentalresearchontheheatingperformanceofasinglecylinderrefrigerantinjectionrotarycompressorheatpumpwithflashtank.中国科学技术科学英文版,061(012),1814.
MLA SUN JinFei,et al."experimentalresearchontheheatingperformanceofasinglecylinderrefrigerantinjectionrotarycompressorheatpumpwithflashtank".中国科学技术科学英文版 061.012(2018):1814.
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