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Advantage of CO2 heat pump chiller for the application in Indian hotels.

Number: 0607

Author(s) : REDDY Y. S. K., ELARGA H., GURUCHETHAN A. M., MAIYA M. P., HAFNER A.

Summary

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.

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Details

  • Original title: Advantage of CO2 heat pump chiller for the application in Indian hotels.
  • Record ID : 30031432
  • Languages: English
  • Subject: Technology
  • Source: Proceedings of the 26th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
  • Publication date: 2023/08/21
  • DOI: http://dx.doi.org/10.18462/iir.icr.2023.0607

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