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分析了描述螺杆压缩机压缩过程的定质量过程简化方程式的不正确性;讨论了由变质量热力学基本关系式所导得的过程简化式。具体的计算实例表明:本文提出的用当量传热量来求子过程指数n,最能反映实际压缩过程的本质。
Inaccuracies of simplified equations describing the mass-quality process of the compression process of screw compressors are analyzed. Process simplifications obtained from the basic relationship of variable mass thermodynamics are discussed. The concrete calculation example shows that the equivalent heat transfer is used to find the sub-process index n, which can reflect the essence of the actual compression process.