喷射器级联蒸汽压缩制冷系统的实验研究

Vikas Kumar, G. Sachdeva, Sandeep Tiwari, P. Anuradha, V. Jain
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引用次数: 1

摘要

对传统蒸汽压缩制冷系统(VCRS)与热辅助喷射器制冷系统(ERS)进行了实验分析。级联允许VCRS在较低的冷凝器温度下运行,从而实现更高的性能系数。在这种级联系统中,蒸汽压缩系统的冷凝器不直接将其热量散发到ERS的蒸发器;相反,水在VCRS的冷凝器和ERS的蒸发器之间循环以交换热量。在ERS中使用了七种不同几何形状的喷射器;然而,所有的喷射器都不能在期望的工作条件下保持热平衡。级联后,压缩机功耗比未级联时降低1.3倍。此外,在相同的操作条件下,与非级联系统相比,级联系统的COP最高提高了87.74%。系统的性能一直保持不变,直到达到ERS的临界冷凝器压力。
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An Experimental Investigation on Vapor Compression Refrigeration System Cascaded with Ejector Refrigeration System
A conventional vapor compression refrigeration system (VCRS) cascaded with a heat-assisted ejector refrigeration system (ERS) has been experimentally analyzed. Cascading allows the VCRS to operate at lower condenser temperatures and thus achieve a higher coefficient of performance. In this cascaded system, the condenser of the vapor compression system does not dissipate its heat directly to the evaporator of the ERS; instead, water circulates between the condenser of VCRS and the evaporator of ERS to exchange the heat. Seven ejectors of different geometries have been used in the ERS; however, all the ejectors could not maintain thermal equilibrium at the desired operating conditions. The compressor of the cascaded VCRS consumed 1.3 times less power than the noncascaded VCRS. Furthermore, the cascaded system provided a maximum 87.74% improvement in COP over the noncascaded system for the same operating conditions. The performance of the system remained constant until the critical condenser pressure of the ERS.
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来源期刊
CiteScore
2.70
自引率
10.00%
发文量
0
期刊介绍: As the only international journal in the field of air-conditioning and refrigeration in Asia, IJACR reports researches on the equipments for controlling indoor environment and cooling/refrigeration. It includes broad range of applications and underlying theories including fluid dynamics, thermodynamics, heat transfer, and nano/bio-related technologies. In addition, it covers future energy technologies, such as fuel cell, wind turbine, solar cell/heat, geothermal energy and etc.
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