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制冷空调用涡旋压缩机数学模型
引用本文:王宝龙,石文星,李先庭.制冷空调用涡旋压缩机数学模型[J].清华大学学报(自然科学版),2005,45(6):726-729.
作者姓名:王宝龙  石文星  李先庭
作者单位:清华大学,建筑技术科学系,北京,100084
摘    要:为研究涡旋压缩机结构对制冷空调系统性能的影响,建立了适用于制冷空调仿真的涡旋压缩机的分布参数简化模型。推导出适宜于任意渐开线初始角的包含吸气、压缩和排气全过程的分段函数形式工作腔容积模型和泄漏面积模型;统一考虑工作过程中的泄漏和排气,建立了基于能量守恒、质量守恒和实际气体状态方程的涡旋压缩机模型,并用四阶Ronge-Kutta法求解。将模拟计算的压缩机功耗和质量流量与Winandy的试验结果进行对比,结果表明,该模型能够准确地描述涡旋压缩机的吸气预压缩、压缩泄漏以及排气过压缩等详细工作过程。该研究为涡旋压缩机及其制冷系统的性能研究提供了有效工具。

关 键 词:涡旋压缩机  数学模型  模拟
文章编号:1000-0054(2005)06-0726-04
修稿时间:2004年6月10日

Mathematical modeling of scroll refrigeration compressors
Wang Baolong,SHI Wenxing,Li Xianting.Mathematical modeling of scroll refrigeration compressors[J].Journal of Tsinghua University(Science and Technology),2005,45(6):726-729.
Authors:Wang Baolong  SHI Wenxing  Li Xianting
Abstract:A simple distributed parameters model for a scroll compressor was used to analyze the effects of the scroll compressor configuration on the refrigeration system. The geometrical model included the working volume and leakage area for various initial angles. The thermodynamic model included mass conservation and energy conservation considering the coherence of leakage, suction and discharge. The 4th order Runge-Kutta method was used to solve the coupled equations. The results compare well with previous experimental results and can describe the pre-compression at the end of the suction process and the over-compression/ under-compression at the end of the compression process. The model can be used to simulate refrigeration systems with scroll compressors.
Keywords:scroll  compressor  mathematical modeling  simulation
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