Improvement of Efficiency of Air Refrigeration System by lowering the Inlet Temperature of Air

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
© 2018 by IJETT Journal
Volume-55 Number-1
Year of Publication : 2018
Authors : Prabal Roy, Surjeet Singh Rajpoot
DOI :  10.14445/22315381/IJETT-V55P206


Prabal Roy, Surjeet Singh Rajpoot "Improvement of Efficiency of Air Refrigeration System by lowering the Inlet Temperature of Air", International Journal of Engineering Trends and Technology (IJETT), V55(1),25-29 January 2018. ISSN:2231-5381. published by seventh sense research group

In many process industries Dry air flow is used to make the raw-materials dry and moisture free for better transportation from one stage to other during the process. This air-flow is obtained from big industrial Compressors and the output air of which contains atmospheric moisture. A case study was undertaken at a company viz. HEG Ltd where carbon rods are produced from graphite powder. These graphite powders are dried by flowing dry & moisture free air over them for pneumatic conveying the powder from one process to another. The flow of high pressure air from compressor is generally hot and contains moisture. This moisture of air is removed from the air through a Refrigeration system. Now as the efficiency or COP of the refrigeration system depends on the inlet temperature of the air which comes from an air-compressor which remains hot. The heat of inlet air is removed by using the cold air through the introduction of an additional Heat-exchanger. As a result the temperature of the inlet air to the refrigeration system is reduced thus improving the efficiency & COP of the Refrigeration system.

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COP, Compressor, Evaporator, Temperature.