News aus Wärmepumpen- Forschung und -Markt - FWS
News aus Wärmepumpen- Forschung und -Markt - FWS
News aus Wärmepumpen- Forschung und -Markt - FWS
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<strong>News</strong> <strong>aus</strong> <strong>Wärmepumpen</strong>-<strong>Forschung</strong><br />
<strong>und</strong> -<strong>Markt</strong><br />
�<br />
System type 3: “Big buffer storage”<br />
(Examples: Chemowerk – CEMO, Soltex, Thermosolar)<br />
17. Tagung des BFE-<strong>Forschung</strong>sprogramms<br />
«<strong>Wärmepumpen</strong>, Wärme-Kraft-Kopplung,<br />
Kälte» 29. Juni 2011, HTI Burgdorf<br />
Seite 49<br />
System type 3 schematic (Note: all systems drawing have been done by ISE Fraunhofer [7])<br />
The features of this system are:<br />
� the buffer storage has an extensive volume (e.g. 800 l or more) and serves as a heat<br />
source for the heat pump<br />
� in case of a lack of energy inside the buffer, the heat pump can use<br />
the borehole heat exchanger<br />
� as a result of many hydraulic components (i.e.. two storages) the system requires more<br />
place, higher cost and a sophisticated control system. It is not clear yet if its<br />
advantages can compensate these drawbacks.<br />
� no active support for the regeneration of a gro<strong>und</strong> heat source is foreseen although it<br />
could be possible from the storage.<br />
� system allows theoretically higher inlet temperature for the evaporator of the heat<br />
pump and the increase of the solar gains, but it is reliable enough?
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