A SOLAR REFRIGERATION SYSTEM'S PERFORMANCE IMPROVEMENT FOR A VARIABLE THROAT EJECTOR
Muddu Allaparthi1, K. Sudha Madhuri2, Sandhya Rani Borukati3, Ajith Rai4, Haridasu Deepti5, T. Lokeshwar Rao6
1Assistant Professor, Department of Mechanical Engineering, R.V.R & J. C. College of Engineering, Guntur, India
2Associate Professor, RGMCET, Nandyal
3,5,6Assistant Professor, Dept. of Mechanical Engg., Malla Reddy College of Engg.& Tech., Hyderabad, India
4Assistant Professor, Dept. of Aeronautical Engg., Malla Reddy College of Engg. & Tech., Hyderabad, India
It can be challenging to maintain a constant generator temperature in a solar vapour ejector refrigeration system because fluctuations in solar irradiation intensity can affect the solar heat supply.This work suggests a variable throat ejector (VTEJ) to enhance ejector performance and evaluates its performance using CFD simulations. One can infer the following conclusions.Although it may be overdesigned and costly, an ejector with a bigger throat area and solar collector offers a broader working range of generator temperatures. On the other hand, reducing the throat area reduces the temperature range across which the generator may operate.As a result, using solar energy as a heat source may not be possible for the ejector with a set throat area. The ideal throat area ratio and operating temperatures are derived for a VTEJ in this work using a curve-fitting method.The ejector can continuously achieve optimal and steady performances under a variable solar heat source by using this equation to modify the throat area ratio.
Keywords: Refrigeration system, Throat ejector, solar vapour ejector, Solar collectors, and Throat ratio.