News aus Wärmepumpen- Forschung und -Markt - FWS

News aus Wärmepumpen-Forschung
und -Markt
17. Tagung des BFE-Forschungsprogramms
«Wärmepumpen, Wärme-Kraft-Kopplung,
Kälte» 29. Juni 2011, HTI Burgdorf
Seite 46
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the other side, that both are investigating with a strategical focus the combinations of solar
and heat pump since swiss customers tend to buy both technologies.
From non integrated to full integrated systems
They are basically two kinds of systems that can be designed when working with two heat
producers:
A non integrated solution: basically the heat pump system does the heating and the back-up of
the domestic hot water. The solar part is providing 60 to 70% of the hot water needs. The two
producers interact only at the level of the DHW tank, the heat pump works for solar just as a
gas or fuel boiler would as a back up.
A fully integrated system: the heart of the system is the heat pump but solar energy provides
energy to the evaporator side of the heat pump, either through a storage tank or directly, and
when possible to the DHW tank and/or to the heating distribution system.
A total of eight generic systems have been identified by Subtask A during year 1. We have at
present 55 projects under description and it is anticipated that a few more “generic” systems
will be issued after the analysis of all projects.
We will review the generic systems that Subtask A is investigating and present their basic
characteristics.