Alternative energy storage using a domestic hot water solar-assisted heat pump with PV collector/evaporator and HC refrigerant

C. A. Isaza-Roldan, William Quitiaquez, César Nieto-Londoño, Luis Toapanta, Isaac Simbaña

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This work presents the thermodynamic analysis of a direct-expansion solar-assisted heat pump to provide domestic hot water. An aluminum bare collector/evaporator and a compressor that uses refrigerant R600a as working fluid compose the system. Boiling and condensation temperatures are -8 and 54.4 °C, respectively. The system test is conducted under different weather conditions (i.e. rainy, cloudy and clear day), obtaining a variation of the coefficient of performance between 4.07 and 6.72 for an average solar radiation in the range of 451.6 and 721.5 W·m-2. The water final temperature attains a value between 47.7 and 58.6 °C. The system works with solar energy, both thermal and photovoltaic, to replace conventional energy sources conducing to decrease the carbon reduction factor (CFC) in 89.5 % being lower than the 1977.2 kg of annual CO2 emissions produced by an electric shower.

Original languageEnglish
Title of host publicationICR 2019 - 25th IIR International Congress of Refrigeration
EditorsVasile Minea
PublisherInternational Institute of Refrigeration
Pages4827-4839
Number of pages13
ISBN (Electronic)9782362150357
DOIs
StatePublished - 1 Jan 2019
Event25th IIR International Congress of Refrigeration, ICR 2019 - Montreal, Canada
Duration: 24 Aug 201930 Aug 2019

Publication series

NameRefrigeration Science and Technology
Volume2019-August
ISSN (Print)0151-1637

Conference

Conference25th IIR International Congress of Refrigeration, ICR 2019
Country/TerritoryCanada
CityMontreal
Period24/08/1930/08/19

Keywords

  • Direct Expansion
  • Heat Pump
  • Solar Energy

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