摘要
根据泡露点的特性使用3种计算非共沸混合工质冷凝温度和蒸发温度的计算方法,建立应用于R236fa/R32混合工质制冷系统设计计算和性能测试的计算模型,并通过对该混合工质制冷系统的变组分试验,对制冷系统的性能测试数据进行对比分析。结果表明泡露点法不适用于大滑移温度混合工质的计算,中点法和平均值法均适用。相对于平均值法,采用中点法计算最准确,但计算过程最复杂。
According to the characteristics of the bubble point and the dew point,three calculation methods are used to calculate the condensing temperature and evaporating temperature.A computational model is established for the design calculation and performance testing of the R236fa/R32 mixed refrigerant system.The performance test data of the refrigeration system are compared and analyzed by the experiment of the variable component of the mixed refrigerant system.The results show that each of the bubble point and the dew point method is not suitable for the design calculation of large glide temperature mixture refrigerants.Both of the midpoint method and the average value method may be used.And the midpoint method is the most accurate,but the calculation process is the most complex,compared with the average value method.
出处
《制冷与空调》
2016年第11期38-42,共5页
Refrigeration and Air-Conditioning
基金
"十二五"国家科技支撑计划项目"夏热冬冷地区建筑节能关键技术研究与示范"(2011BAJ03B05)
南京工程学院校级科研基金项目"基于非共沸混合工质变温制冷系统的研究"(272340326301306)
江苏省大学生实践创新训练项目"非共沸混合工质在双蒸发器制冷系统中的应用研究"(201511276050X)
