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VDI 4640 Blatt 4:2004-09 (R2009)
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VDI 4640 Blatt 4:2004-09 (R2009)
Thermal use of the underground - Direct usesMore info
The document relates to the thermal use of the subsurface down to a dept of approx. 400 m. It dealt ground-coupled heat pump systems, heat pump for heating purposes, heat pump systems for heating and cooling purposes.
| Author | VDI |
|---|---|
| Editor | VDI |
| Document type | Standard |
| Format | File |
| Confirmation date | 2009-12-01 |
| ICS | 27.080 : Heat pumps
27.190 : Biological sources and alternative sources of energy |
| Number of pages | 40 |
| Replace | VDI 4640 Blatt 4 (2002-12) |
| Set | VDI-Handbuch Energietechnik |
| Year | 2004 |
| Document history | VDI 4640 Blatt 4 (2004-09) |
| Country | Germany |
| Keyword | VDI 4640;4640 |