Seasonal performance rating of heat pump water heaters

Morrison, G.L.; Anderson, T.; Behnia, M.
January - March 2004

Solar Energy, vol 76-1 to 3, p. 147-152

Seasonal performance evaluation methods for water heaters are reviewed and an experimental method for rating air-source heat pump water heaters is presented. The rating method is based on measured heat pump performance during heat-up operation of particular products rather than a generic simulation model of heat pump performance. The measured performance is used in a correlation model of the heat pump unit in an annual load-cycle system performance simulation based on the TRNSYS simulation package.

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