Investigation and Optimization of Commercial Refrigeration Cycles Using the Natural Refrigerant CO2
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2016, Vol 4, Issue 3
Abstract
With tighter regulations on the use of Hydroflurocarbons (HFCs) due to their high GWP (Global Warming Potential), many supermarket operators are looking for alternative refrigerants. To contribute to this, the objectives of this proposed research work are to investigate the practicality, environmental benefits and economic viability of all-CO2transcritical refrigeration system suitable for departmental stores or supermarkets. While the environmental benefits of using CO2 as a refrigerant are clear, there is rather limited practical and technical knowledge on the design and operation of these systems. In this proposed work, the performances of the transcritical booster CO2 refrigeration system and traditional HFC system will be compared. The models will be verified using test results from experimentation on refrigeration system using CO2. To compare the performance of the CO2 refrigeration system in the field, energy data from a supermarket employing a HFC refrigeration system will be used for energy simulations. The literature survey on the utilization of CO2 as refrigerants for supermarkets refrigeration are encouraging to take up this as a research work. The CO2 system proposed in this research may replace the existing conventional systems in supermarkets. In this paper,various experiments performed throughout the world is reviewed and studied and also an attempt has been made to bring out the importance of utilization of CO2 as a refrigerant.
Authors and Affiliations
K. Usha Rani, Prof. G. Nagamalleswara Rao, Prof. B. Durga Prasad
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