|
|||||
|
|
| R744/R600及R744/R600a混合工质热泵循环性能研究 | |
| 引用本文： | 范晓伟,张仙平,王凤坤,沈恒根,陈圣光. R744/R600及R744/R600a混合工质热泵循环性能研究[J]. 制冷学报, 2011, 32(6): 35-39 |
| 作者姓名： | 范晓伟 张仙平 王凤坤 沈恒根 陈圣光 |
| 作者单位： | 1. 中原工学院能源与环境学院 郑州450007 2. 东华大学环境科学与工程学院 上海201620;河南工程学院土木工程系 郑州450007 3. 东华大学环境科学与工程学院 上海201620 |
| 基金项目： | 国家自然科学基金(50676059、51776207)资助项目~~ |
| 摘 要： | 基于换热器中的传热窄点温差的限制,对R744/R600及R744/R600a在所研究的工况范围内分别替代传统制冷剂R22的亚临界热泵循环特性分别进行了计算分析.结果表明:R744/R600和R744/R600a具有不同的最优配比,可以使得制热性能系数(COPh)最大；R744/R600及R744/R600a在最优配比下的COPh分别比R22系统增大11.98％和8.24％,分别比纯质R600和R600a大36.43％和36.24％,比跨临界循环R744系统增加7.07％和4.71％.在最优配比下,R744/R600和R744/R600a的冷凝压力低于R22,分别为0.84MPa和1.18MPa;压缩机排气温度也低于R22,在90℃以下. |
| 关 键 词： | 热工学 非共沸混合工质 热泵 R744/R600 R744/R600a 传热窄点 |
Research on Performance of Heat Pump Systems Using R744 /R600 and R744 /R600a Mixtures as Refrigerants |
|
| Fan Xiaowei,Zhang Xianping,Wang Fengkun,Shen Henggen and Chen Shengguang. Research on Performance of Heat Pump Systems Using R744 /R600 and R744 /R600a Mixtures as Refrigerants[J]. Journal of Refrigeration, 2011, 32(6): 35-39 | |
| Authors: | Fan Xiaowei Zhang Xianping Wang Fengkun Shen Henggen Chen Shengguang |
| Affiliation: | Fan Xiaowei1 Zhang Xianping2,3 Wang Fengkun1 Shen Henggen2 Chen Shengguang1(1.School of Energy and Environmental Engineering,Zhongyuan University of Technology,Zhengzhou,450007,China,2.School of Environmental Science & Engineering,Donghua University,Shanghai,201620,3.Department of Civil Engineering,Henan Institute of Engineering,China) |
| Abstract: | Under the given conditions,the system performances of R744/R600 and R744/R600a to substitute for conventional refrigerant R22 in a subcritical heating cycle were theoretically analyzed respectively with consideration of heat transfer pinch point in heat exchangers.Results show that R744/R600 and R744/R600a have different optimum mass fraction of which the system works with the maximum heating coefficient of performance(COPh).Compared to R22 system,the optimum COPh of R744/R600 and R744/R600a are increased b... |
| Keywords: | Pyrology Zeotropic mixture Heat pump R744/R600 R744/R600a Heat transfer pinch point |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《制冷学报》浏览原始摘要信息 | |
| 点击此处可从《制冷学报》下载全文 | |