Integrated Solar-Assisted Heat Pumps for water heating coupled to gas burners; Control criteria for dynamic operation

F. Scarpa (1) , L.A. Tagliafico (1) , G. Tagliafico (1)

1 Division of Thermal Energy and Environmental Conditioning Via All'Opera Pia 15 A - (I) 16145 Genoa - Italy

A direct expansion integrated solar assisted heat pump (ISAHP) is compared to a traditional flat plate solar panel for low temperature (45 °C) water heating applications. The (simulated) comparison is accomplished assuming both the devices are energy supplemented with an auxiliary standard gas burner, to provide the typical heat duty of a four-member family. Literature dynamical models of the systems involved have been used to calculate the main performance figures in a context of actual climatic conditions and typical stochastic user demand.

Mots clés: Solar assisted; Renewable energy; Heat pump; Direct expansion; Water heater

Domaines: Thermique [physics.class-ph]; Thermique [physics.class-ph]

F. Scarpa, L.A. Tagliafico, G. Tagliafico. Integrated Solar-Assisted Heat Pumps for water heating coupled to gas burners; Control criteria for dynamic operation. Applied Thermal Engineering, 2010, 31 (1), pp.59. ⟨10.1016/j.applthermaleng.2010.08.012⟩. ⟨hal-00685786⟩