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Technical rule [WITHDRAWN]

VDI 4650 Blatt 1:2009-03

Calculation of heat pumps - Simplified method for the calculation of the seasonal performance factor of heat pumps - Electric heat pumps for space heating and domestic hot water

German title
Berechnungen von Wärmepumpen - Kurzverfahren zur Berechnung der Jahresarbeitszahl von Wärmepumpenanlagen - Elektro-Wärmepumpen zur Raumheizung und Warmwasserbereitung
Publication date
2009-03
Original language
German, English
Pages
27

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Publication date
2009-03
Original language
German, English
Pages
27

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Short description
Space heating contributes to energy consumption to a large degree. In addition to a cutback on the demand by means of thermal insulation, heating technology offers a considerable potential for reducing energy consumption. In particular, the socalled thermodynamic heating using heat pumps can lead to significant savings in new, but also in existing buildings by making use of the ambient heat resulting from solar radiation, and of geothermal heat. Heat-pump heating is currently one of the best possibilities of using solar energy in Central European climate. This VDI guideline describes an easy, yet sufficiently exact, method for the calculation of the energy efficiency, which takes into account all influence quantities of technical relevance. This guideline applies to electrically driven heat pump systems for space heating and DHW heating up to a useful heat flow up to 100 kW. Heat sources considered are groundwater, ground source (borehole heat exchangers and horizontal ground heat exchangers) and air. The heat is delivered to a water-based central heating system (heat sink).
Content
ICS
27.080, 91.140.10
Replacement amendments

This document replaces VDI 4650 Blatt 1:2003-01 .

This document has been replaced by: VDI 4650 Blatt 1:2016-12 .

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