dc.contributor.author | Reddy, Y. Siva Kumar | |
dc.contributor.author | Elarga, Hagar Hassan Hassanein Hassan | |
dc.contributor.author | Gururchethan, A.M. | |
dc.contributor.author | Maiya, M.P. | |
dc.contributor.author | Hafner, Armin | |
dc.date.accessioned | 2024-02-28T07:37:40Z | |
dc.date.available | 2024-02-28T07:37:40Z | |
dc.date.created | 2023-10-19T13:27:19Z | |
dc.date.issued | 2023 | |
dc.identifier.isbn | 978-2-36215-058-6 | |
dc.identifier.uri | https://hdl.handle.net/11250/3120199 | |
dc.description.abstract | 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 potentials of a CO2 heat pump chiller system for such an application. An ejector-based system of 50 kW heating capacity is proposed for a typical hotel having a hot water demand of 40 m3 /day with a 5 m3 thermal storage tank (TST). The heat pump produces the hot water at 68°C which is stored in the proposed TST. As per the demand, the hot water from the TST will be supplied to two existing 5 m3 hot water supply tanks (one for rooms and the other for the kitchen) after being mixed with cold water to reach the required temperature (46°C). The system also supplements up to 3.2% of the cooling demand of the hotel by contributing chilled water at 7°C. The proposed system reduces the operating cost and CO2 emissions to approximately 10 and 30%, respectively of the existing set-up. Return on investment is found to be less than 2 years. Keywords: Ejector, R744, Transcritical, DHW, Thermal storage, Energy savings | en_US |
dc.description.abstract | Advantage of CO2 heat pump chiller for the application in Indian hotels | en_US |
dc.language.iso | eng | en_US |
dc.publisher | International Institute of Refrigeration | en_US |
dc.relation.ispartof | Proceedings of the 26th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023 - volume 4 | |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | Advantage of CO2 heat pump chiller for the application in Indian hotels | en_US |
dc.title.alternative | Advantage of CO2 heat pump chiller for the application in Indian hotels | en_US |
dc.type | Chapter | en_US |
dc.description.version | acceptedVersion | en_US |
dc.rights.holder | © Copyright 2023 International Institute of Refrigeration | en_US |
dc.source.pagenumber | 1274-1281 | en_US |
dc.identifier.cristin | 2186382 | |
cristin.ispublished | true | |
cristin.fulltext | postprint | |
cristin.qualitycode | 1 | |