Feasibility and design studies for heat recovery from a refrigeration system with a canopus heat exchanger |
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| Institution: | 1. Michigan State University, United States;2. Menoufia University, Egypt;1. Industrial Design Engineering, Delft University of Technology, Landbergstraat 15, 2628 CE, Delft, The Netherlands;2. Institute for Manufacturing, Department of Engineering, University of Cambridge, Cambridge, CB3 0FS, United Kingdom;1. Department of Mathematical Science, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 105862, Riyadh 11656, Saudi Arabia;2. King Khalid University, College of Science, Department of Mathematics, P.O. Box 9004, 61413 Abha, Saudi Arabia;3. Department of Mathematics, Faculty of Science, Al-Azhar University, 71524 Assiut, Egypt;4. Department of Mathematics and Computer Science, Faculty of science, Beni- Suef University, Beni- Suef, Egypt;5. Department of Mathematics, Faculty of Science, Fayoum University, Fayoum 63514, Egypt;6. Department of Mathematics, Faculty of Science, Al-Azhar University, Nasr City 11884, Egypt |
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| Abstract: | This paper presents an investigation of the feasibility of heat recovery from the condenser of a vapour compression refrigeration (VCR) system through a Canopus heat exchanger (CHE) between the compressor and condenser components. The presence of the CHE makes it possible to recover the superheat of the discharged vapour and utilize it for increasing the temperature of the external fluid (water) removing heat from the condenser. The effects of the operating temperatures in the condenser and evaporator for different inlet water temperatures and mass flow rates on the heat recovery output and its distribution over the condenser and CHE (the fraction of the condenser heat available through the CHE), available outlet water temperature and heat recovery factor have all been studied and optimum operating parameters for feasible heat recovery have been ascertained. The parametric results obtained for different working fluids, such as R-22, R-12, R-717 and R-500, have been presented. It is found that, in general, a heat recovery factor of the order of 2.0 and 40% of condenser heat can be recovered through the Canopus heat exchanger for a typical set of operating conditions. |
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