涡旋膨胀机的性能模拟

摘要/Abstract

摘要： 为了研究涡旋膨胀机的性能特点，从等截面和变截面涡旋膨胀机的几何模型出发，分析了等截面和变截面涡旋膨胀机容积在一个运转周期内的变化情况。基于质量和能量守恒构建了涡旋膨胀机的整体数学模型，通过对数学模型的求解，得到了涡旋膨胀机工作腔内工质的压力、温度和质量随主轴转角的实际变化规律。通过对涡旋膨胀机数学模型的定量化分析，揭示了等截面和变截面涡旋膨胀机几何参数对其性能的影响规律，为涡旋膨胀机类型的选择以及涡旋膨胀机的性能优化研究打下了基础。

关键词: 涡旋膨胀机, 等截面, 变截面, 数学模型

Abstract: In order to investigate performance characteristics of scroll expanders, the changes of the working chamber volumes for equal cross-section and variable cross-setion scroll expanders with respect to the orbiting angles were derived based on the geometric models. A mathematical model was established based on energy and mass balance. Temperatures, pressures, and masses of working chambers were investigated by solving the mathematical model. The relation among the geometric parameters and performance was revealed through quantitative analysis on mathematical model of the scroll expanders. The results provide the foundation for the scroll expander selections and the performance optimizations.

Key words: scroll expander, equal cross-section, variable cross-setion, mathematical model

中图分类号:

TH45

彭斌1,2;李要红1,2;赵生显1,2. 涡旋膨胀机的性能模拟[J]. 中国机械工程.

PENG Bin1,2;LI Yaohong1,2;ZHAO Shengxian1,2. Performance Simulation for Scroll Expanders[J]. China Mechanical Engineering.

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