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Opportunity and direction for solar cooling: the case in Australia.

Author(s) : KOHLENBACH P., DENNIS M.

Type of excerpt: Other

Summary

Solar cooling technologies have existed for many years yet their market share is very low. This paper briefly examines the difficulties with conventional cooling technologies and the opportunity this provides for greater uptake of solar cooling systems. In particular, the cost of solar cooling seems to be the main barrier to market acceptance and so a comparative study is performed between a photovoltaic vapour compressionsystem, a solar thermal cooling with an absorption chiller and a grid-connected reference chiller. The study was performed with reference to conditions prevalent in Australia. It was found that a solar thermal cooling system has a lower lifetime cost than a PV-based system. However, both systems have higher lifetime costs than a grid-connected conventional system. A sensitivity analysis on electricity price showed that solar thermal cooling is more economic than PV-based cooling until the electricity price exceeds AUD 0.5/kWh(el). A PV-based system becomes the most economic cooling alternative if the electricity price exceeds AUD 0.55/kWh(el). Greenhouse gas emissions were found to be lowest for the PV-based system due to the excess power being generated over the lifetime. The solar thermal system saves approximately 75% of the emissions of the conventional system.

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Pages: pp. 29-32

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Details

  • Original title: Opportunity and direction for solar cooling: the case in Australia.
  • Record ID : 2011-0364
  • Languages: English
  • Source: Cooling without warming: green new deal in refrigeration and air conditioning. Special international issue 2010 of Industria Formazione on refrigeration and air conditioning.
  • Publication date: 2010

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