Browsing NTNU Open by Author "Elarga, Hagar Hassan Hassanein Hassan"
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Advantage of CO2 heat pump chiller for the application in Indian hotels
Reddy, Y. Siva Kumar; Elarga, Hagar Hassan Hassanein Hassan; Gururchethan, A.M.; Maiya, M.P.; Hafner, Armin (Chapter, 2023)Hotels in India conventionally use diesel-fired hot water generators to meet hot water demands at 46°C. These are inefficient and also release high emissions. This study focuses on the energy saving and emission reduction ... -
Innovative reheat approach of the TES system during the hotel’s standstill operation utilizing a CO2 heat pump/chiller unit
Elarga, Hagar Hassan Hassanein Hassan; Pardiñas, Ángel Á.; Minetto, Silvia; Hafner, Armin (Chapter, 2023)The implementation of CO2 as a refrigerant is considered one of the solutions to improve the overall building’s energy performance, especially if the heat recovery concept is applied. In this paper, an innovative approach ... -
Refrigerated Transportation and Cold-chain Logistics in India – Current Status and Future Prospects
Gupta, Pradeep; Kumar, Pramod; Elarga, Hagar Hassan Hassanein Hassan; Hafner, Armin (Chapter, 2023)Reefer transportation has become an integral part of supply chain management for the shipment of temperature-sensitive goods. In a country as large and geographically diverse as India, refrigerated road transport is crucial ... -
Study on retaining natural refrigerant in seafood processing industries in India
Arun, B.S.; Kumar, Sumit; Murali, S.; Ninan, George; Samuel, Manoj P.; Widell, Kristina Marianne Norne; Singh, Simarpreet; Elarga, Hagar Hassan Hassanein Hassan; Hafner, Armin (Chapter, 2023)In the seafood processing sector in India, natural refrigerant such as NH3 is currently replaced by Freon refrigerants such as HFC-404A, because these systems are comparably more compact, operate above atmospheric pressure ...