摘要
制冷系统在实际运行时其工作状况是大幅度变化的,针对压缩机变工况运行时机理模型难以全面反映实际运行的复杂因素而造成精度不高问题,依据变质量系统热力学理论,采用机理分析和实验拟合相结合的灰箱方法,将控制模型中的主要参数多项式化,提出制冷压缩机的主要热力性能(制冷量和功耗)与热力参数(吸气和排气压力)之间的模型结构和定量关系。理论计算结果与实验测试结果的吻合性较好,证明了该定量关系的可行性和准确性。
It is necessary to develop a performance model of a refrigerating compressor running at variable condition in order to enhance its calculation accuracy. In this paper, the ash box method of mechanism analysis and experiment is adopted, and the main parameters in the control model are expressed by polynomials from the thermodynamics theory of variable mass systems. The quantitative relations are deduced between the primary thermodynamic performance of the compressor（refrigerating capacity and energy consumption） and the thermodynamic parameters （suction pressure and discharge pressure）. The numerical results are in agreement with the experimental data.
出处
《制冷学报》
CAS
CSCD
北大核心
2009年第6期15-19,共5页
Journal of Refrigeration
基金
浙江省杰出青年基金(R106768)
浙江省重大科技专项资助(2006C11002)~~
关键词
热工学
制冷压缩机
变工况
热力性能
Pyrology
Refrigeration compressor
Variable condition
Thermodynamic performance
