流体机械2024，Vol.52Issue(11)：97-104,8.DOI:10.3969/j.issn.1005-0329.2024.11.013
电动汽车补气式涡旋压缩机考虑内漏和传热的热力学研究
Thermodynamic study of vapor injection scroll compressors for electric vehicles considering internal leakage and heat transfer
摘要
Abstract
In order to calculate the difference between the thermodynamic working process and actual working process of the scroll compressor using the simplified isentropic process,a one-dimensional mathematical model that incorporates internal leakage and heat transfer processes,which was verified with a short wrap profile vapor injection scroll compressor under low-temperature working conditions.By comparing the simulated results of compressor power,heating COP,heating capacity,and discharge temperature at different compressor speeds(5000,6000 r/min)with experimental results,it was found that the maximum error between them is within 8%.By comparing the results of calculating the working process of the compressor using the isentropic model and the simulation model proposed herein when the intake and exhaust pressures were 0.16 and 0.90 MPa,respectively,it was found that after considering internal leakage and heat transfer,the difference between the calculated values of heating capacity and exhaust temperature and the experimental values decreased from a minimum of 20%to 4%.The calculated results of the proposed simulation model can more accurately reflect the practical working process of the compressor.The research results can provide reference for the design and application of vapor injection scroll compressors.关键词
电动汽车/短型线补气式涡旋压缩机/数值模拟/仿真模型Key words
electric vehicles/short wrap profile vapor injection scroll compressor/numerical simulation/simulation model分类
机械制造引用本文复制引用
胡家云,苗言明,谭明飞,张斌,李超,何其泽,王佳韵,李康..电动汽车补气式涡旋压缩机考虑内漏和传热的热力学研究[J].流体机械,2024,52(11):97-104,8.基金项目
国家自然科学基金面上项目(52376203) （52376203）
