摘要
本文根据气体动力学方法和定压混合理论,以Visual Basic为工作平台编制了太阳能热虹吸自喷射制冷系统的喷射器喷射系数的计算程序。计算出了以水为制冷工质的各种工况下喷射器的喷射系数。根据计算结果分析得出:喷射系数随发生温度升高而增大,发生温度每升高1℃,喷射系数增加0.007;随蒸发温升高而增大,蒸发温度每升高1℃,喷射系数增加0.031;随冷凝温度的升高而减小,冷凝温度每升高1℃,喷射系数减少0.033。这为提高制冷系统喷射系数提供了有效的途径。
Based of gas dynamics and constant pressure mixing theories, the entrainment ratios of the solar thermo-siphon self-injection refrigeration system are calculated by Visual Basic. The entrainment ratios of the refrigerant water have been gained in different conditions. The calculation results show: the entrainment ratio will increase with the increasing of evaporator temperature. The entrainment ratio increasing is 0.007 at increase of 1℃. It will increase with the increasing of generator temperature. The ratio increasing is 0.031 at increase of 1℃. And it will decrease with the increasing of condenser temperature. The ratio decreasing is 0.033 at increase of 1 ℃. It offers the effective way to higher entrainment ratio of the refrigeration system.
出处
《应用能源技术》
2012年第11期37-40,共4页
Applied Energy Technology
基金
安徽省级自然科学研究项目热虹吸自喷射封闭式制冷系统研究((KJ2011Z040)
安徽工业大学SRTP项目低温热源热管喷射式制冷系统的数据模拟(2012003)
关键词
喷射器
制冷
喷射系数
温度
VB
Ejector
Refrigeration
Entrainment
Temperature
Ratio
VB