制冷学报2018，Vol.39Issue(2)：22-30,9.DOI:10.3969/j.issn.0253-4339.2018.02.022
跨临界CO2空气源热泵系统性能研究
Research on System Performance of Air-source Transcritical CO2 Heat Pump
摘要
Abstract
Based on a theoretical analysis of an air-source transcritical CO2 heat pump system,a mathematical model for the compressor was eveloped using an efficiency analysis in this study.In addition,a mathematical model for the expansion valve was built using a structural analysis;and mathematical models for the gas-cooler,evaporator,and regenerator were developed using the distributed parameter method.Moreover,a mathematical model for the entire system was built by combining these models.The accuracy of the system model was verified by an experimental test,which showed that the deviation in the unit's input power between the calculated value and measured value was less than 4.4％,the mean deviation in the heating capacity was 5.76％,and the deviation in the optimal discharge pressure was less than 0.1 MPa.Thus,it was possible to calculate the system performance by employing the mathematical simulation method.关键词
CO2热泵系统/稳态数学模型/最优排气压力/不确定度/性能系数Key words
CO2 heat pump system/steady state mathematical model/optimal discharge pressure/uncertainty/coefficient of performance分类
通用工业技术引用本文复制引用
赵宗彬,宋昱龙,包继虎,陆磊,李宏哲,郭扬,朱丰雷..跨临界CO2空气源热泵系统性能研究[J].制冷学报,2018,39(2):22-30,9.基金项目
本文受合肥通用机械研究院青年科技基金(2013010644)项目资助.The project was supported by the Youth Science Fund of Hefei General Machinery Research Institute (No.2013010644). （2013010644）
