Thermodynamic investigations of Zeotropic mixture of R290, R23 and R14 on three-stage auto refrigerating cascade system
Thermodynamic investigations of Zeotropic mixture of R290, R23 and R14 on three-stage auto refrigerating cascade system
复制标题
DOI：
10.2298/tsci140103091s
复制
发表时间：
2016
期刊：
影响因子：
1.7
通讯作者：
M. Sivakumar;Periasamy Somasudaram
中科院分区：
文献类型：
--
作者：
M. Sivakumar;Periasamy Somasudaram
非共沸混合工质（HC和HFC）是低温制冷系统中唯一的替代工质，因此研究了6种非共沸混合工质的4种组合对3级自动复叠制冷系统的影响。火用分析证实了三级ARC系统的存在。研究了不同质量分数下系统的性能系数（COP）、（火用）损失、（火用）效率、效率亏损和蒸发温度等性能指标，以验证质量分数对系统性能的影响。根据环境问题和可持续发展的要求，R290/R23/R14三元非共沸混合物（质量分数为0.218：0.346：0.436）的性能较好，可作为三级ARC系统的替代制冷剂，在-97 ° C（176 K）的极低蒸发温度下运行，COP为0.253，（火用）效率相对提高16.3%（58.5%）。
The Zeotropic mixture of environment friendly refrigerants (HC’s and HFC’s) being the only alternatives for working fluid in low temperature refrigeration system and hence three stage Auto Refrigerating Cascade (ARC) system was studied for the existence using 4 combinations of three component Zeotropic mixture of six different refrigerants. The exergy analysis confirmed the existence of three stage ARC system. The performances of the system like Coefficient of Performance (COP), exergy lost, exergic efficiency, efficiency defect and the evaporating temperature achieved were investigated for different mass fractions in order to verify the effect of mass fraction on them. In accordance with the environmental issues and the process of sustainable development, the three component Zeotropic mixture of R290/R23/R14 with the mass fraction of 0.218:0.346:0.436 was performing better and hence can be suggested as an alternative refrigerant for three stage ARC system operating at very low evaporating temperature in the range of -97°C (176K) at COP of 0.253 and comparatively increased exergic efficiency up to 16.3% (58.5%).