EN: Thermal sources of heat pumps
IT: Sorgenti termiche delle pompe di calore
In the upcoming future, heat pumps will get more and more important in the conditioning of new and refurbished buildings, also due to the compliance with the “RES” EU Directive 2009/28/EC and the related national implementation decree (Romani Decree nr. 28 – March 3, 2011).
The planning of a heat pump implementation faces some critical issues; the choice of the thermal energy source – without any doubts – is the most important one. Energetic performance strictly depends on the temperature level of the thermal source to which the pump has been coupled.
This book provides a focus on this topic by analyzing, for each thermal source the main issues, design aspects and calculation models of the seasonal energetic performances, by describing the main standards/laws and evaluating the consequences of the Romani Decree in terms of amount of energy produced by the renewable energy produced by the heat pumps.
The described thermal sources are: outdoor air, surface and underground water, soil, solar thermal, thermal energy recovery. Furthermore the book describes dual-source systems including a combination of two different thermal sources. The book ends with an energetic and economic analysis of heat pump implementations.