| CO_2/二甲醚混合制冷剂跨临界制冷循环性能分析 |
| |
| 引用本文： | 毕胜山,陈强,吴江涛,刘志刚.CO_2/二甲醚混合制冷剂跨临界制冷循环性能分析[J].工程热物理学报,2009,30(11). |
| |
| 作者姓名： | 毕胜山 陈强 吴江涛 刘志刚 |
| |
| 作者单位： | 西安交通大学动力工程多相流国家重点实验室,能源与动力工程学院,陕西西安,710049 |
| |
| 基金项目： | 国家自然科学基金资助项目，全国优秀博士论文作者专项资金 |
| |
| 摘 要： | 本文通过理论计算对CO_2/DME混合制冷剂替代CO_2的跨临界制冷循环特性进行了分析,结果表明:CO_2/DME混合制冷剂的质量配比范围为90/10～100/0时,可实现混合制冷剂的直接充灌.在相同的工况下,CO_2/DME跨临界制冷循环的最优高压侧压力降低了3 MPa,制冷系数提高4.3%;过热度对循环性能的影响,纯质CO_2要大于混合工质CO_2/DME.
|
| 关 键 词： | 跨临界制冷循环 性能 |
PERFORMANCE ANALYSIS OF A TRANSCRITICAL CO_2/DME REFRIGERATION CYCLE |
| |
| BI Sheng-Shan,CHEN Qiang,WU Jiang-Tao,LIU Zhi-Gang.PERFORMANCE ANALYSIS OF A TRANSCRITICAL CO_2/DME REFRIGERATION CYCLE[J].Journal of Engineering Thermophysics,2009,30(11). |
| |
| Authors: | BI Sheng-Shan CHEN Qiang WU Jiang-Tao LIU Zhi-Gang |
| |
| Institution: | BI Sheng-Shan CHEN Qiang WU Jiang-Tao LIU Zhi-Gang (State Key Laboratory of Multiphase Flow in Power Engineering,Xi'an Jiaotong University,Xi'an 710049,China) |
| |
| Abstract: | The performance of a transcritical refrigeration cycle with an alternative refrigerant CO_2/DME for CO_2 is theoretically analyzed and calculated.The results indicated that the mixture refrigerant CO_2/DME is filled directly without changing a refrigeration system with a mass fraction of DME ranging from 0%to 10%.In the similar conditions,the CO_2/DME lowers the discharge pressures by about 3 MPa,and the coefficient of performance(COP) is increased by about 4.3 percent.The influence of superheat on a pure r... |
| |
| Keywords: | CO_2/DME CO_2/DE transcritical refrigeration cycle COP |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
