CAJ | 학술논문

对以R32为工质带经济器的中间补气压缩空气源热泵系统进行了试验研究与分析。结果表明：在蒸发温度为－2～－15℃范围内，该系统的相对补气量、制热量和耗功均随着补气压力的升高而增大；当蒸发温度为－15℃时，最大相对补气量约为33％，同时排气温度可降低11℃；当蒸发温度为－6℃时，系统COP达到最大值时所对应的最佳补气压力范围是1．50～1．54 MPa。在蒸发温度低于－6℃的条件下，带经济器的中间补气压缩空气源热泵系统的制热性能具有明显的优势。
대이R32위공질대경제기적중간보기압축공기원열빙계통진행료시험연구여분석。결과표명：재증발온도위－2～－15℃범위내，해계통적상대보기량、제열량화모공균수착보기압력적승고이증대；당증발온도위－15℃시，최대상대보기량약위33％，동시배기온도가강저11℃；당증발온도위－6℃시，계통COP체도최대치시소대응적최가보기압력범위시1．50～1．54 MPa。재증발온도저우－6℃적조건하，대경제기적중간보기압축공기원열빙계통적제열성능구유명현적우세。
The performance of the EVI heat pump system using refrigerant R 32 is investigated experimentally under the condi-tions of the evaporating temperature ranged from -2℃to -15℃.The experimental results indicate that the injection ratio ,heat capacity and power consumption of the EVI heat pump system increase with the injection pressure .The max injection ratio of the EVI heat pump system is about 33% under the evaporating temperature of -15℃.For the EVI heat pump system , the system COP achieves the maximum value as the evaporating temperature is about -6℃,and the optimum injection pressure ranges from 1.50 MPa to 1.54 MPa.The discharge temperature of the EVI heat pump system drops by 11℃under the evaporating temperature of -15℃.As the evaporating temperature is below -6℃,the COP of the EVI heat pump system is higher than that of the tradi-tional single stage heat pump .