Investigation on Characteristics of Ejector Refrigeration Using CFD
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Published:
Feb 18, 2013
Keywords:
Ejector Ejector refrigeration Computational Fluid Dynamics(CFD)
Main Article Content
Abstract
Ejector refrigeration system is usually designed to utilize the low-grade energy for driving the cycle.
It also has a low maintenance cost, because it operates without compressor. Mainly, the ejector performance
directly affects the refrigerating performance. Therefore, an investigation on characteristics and an efficient
design of the ejector are important to improve the ejector refrigeration system. In this study, Computational
Fluid Dynamics (CFD) code (FLUENT) is employed to predict the flow phenomena and performance of
CPM and CMA steam ejector. The ejector refrigeration system, using water as the working fluid, is operated
at 120oC-140oC of boiler and 5oC-15oC of evaporator temperature. CFD can predict the ejector performance,
very well and reveals the effect of operating conditions on an effective area which is directly related to its
performance. Besides, it is found that the flow pattern doses not depend much on suction zone because the
results of axis symmetric and 3D simulation are similar. This investigation aids to understand the ejector
characteristics and provide the information for designing ejector to suited the optimum condition.
It also has a low maintenance cost, because it operates without compressor. Mainly, the ejector performance
directly affects the refrigerating performance. Therefore, an investigation on characteristics and an efficient
design of the ejector are important to improve the ejector refrigeration system. In this study, Computational
Fluid Dynamics (CFD) code (FLUENT) is employed to predict the flow phenomena and performance of
CPM and CMA steam ejector. The ejector refrigeration system, using water as the working fluid, is operated
at 120oC-140oC of boiler and 5oC-15oC of evaporator temperature. CFD can predict the ejector performance,
very well and reveals the effect of operating conditions on an effective area which is directly related to its
performance. Besides, it is found that the flow pattern doses not depend much on suction zone because the
results of axis symmetric and 3D simulation are similar. This investigation aids to understand the ejector
characteristics and provide the information for designing ejector to suited the optimum condition.
Article Details
How to Cite
Seehanam, W., Pianthong, K., Behnia, M., Sriveerakul, T., & Aphornratana, S. (2013). Investigation on Characteristics of Ejector Refrigeration Using CFD. Engineering and Applied Science Research, 33(6), 639–654. Retrieved from https://ph01.tci-thaijo.org/index.php/easr/article/view/6024
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Section
ORIGINAL RESEARCH
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