It is found that the results are influenced greatly by specific heat of air.
建模过程中发现,空气定压比热对压气机性能计算有较大的影响。
Calculation and analysis on isobaric specific heat for refrigerants;
制冷剂比定压热容的计算分析
Estimation of isobaric specific heat for mixing refrigerant;
混合制冷剂比定压热容的理论推算
And it notices that under different work conditions the average specific heat at constant pressure of water side of heater is different,and comes up with a more accurate calculation method of the average specific heat at constant pressure of water side of heater.
考虑了运行工况变化时加热器入口水温的变化对传热系数的影响,同时还注意到不同工况下的加热器水侧的平均定压比热是不同的,并用较为准确的计算方法计算了加热器水侧平均定压比热,定义了加热器换热面积变化系数Φ,为加热器工况变化时准确求取凝结段的换热面积提供了方法和依据,最后通过建立能量平衡方程和传热效能方程,求得了加热器出口水温,从而确定了加热器端差的基准值。