摘要
建立了往复压缩机压缩过程中伴有气体泄漏和不稳定传热耦合作用下的变质量系统气体压缩热力过程的数学模型,应用龙格-库塔法对其进行数值求解,并分别讨论了传热、质量泄漏及其耦合作用对气体压缩热力过程的影响。结果表明:气体质量泄漏对压缩热力过程影响较大,延长了压缩进程,在示功图上其过程线较为平坦。通过数值计算结果与实验测试结果的比较证实了所建立的压缩过程数学模型的正确性,所得到的压缩热力过程更符合往复压缩机的实际工作过程。
Mathematical model of gas compression process for reciprocating compressor with gas leakage and unsteady heat transfer in a variable mass system is established, and the Runge-Kutta numerical method is used to solve the mathematical model. Effects of heat transfer and gases leakage on the compression process are discussed respectively. The study results show that： the unsteady heat transfer has a greater impact on the thermodynamic process, extending the compression process. The comparison of calculation data and experimental data prove the correctness of the compression process mathematical model. The compression process is more closely to the actual working process for reciprocating compressor.
出处
《流体机械》
CSCD
北大核心
2008年第1期22-25,共4页
Fluid Machinery
关键词
往复压缩机
压缩热力过程
数学模型
质量泄漏
reciprocating compressor
compression thermodynamic process
mathematical model
mass leakage
