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The guideline applies to the thermal use of the underground up to approximatery 400 meters depth.
Author | VDI |
---|---|
Editor | VDI |
Document type | Standard |
Format | File |
ICS | 27.080 : Heat pumps
|
Number of pages | 43 |
Replace | VDI 4640 Blatt 2 (1998-02) |
Set | VDI-Handbuch Energietechnik,VDI-Handbuch Ressourcenmanagement in der Umwelttechnik |
Year | 2001 |
Document history | VDI 4640 Blatt 2 (2001-09) |
Country | Germany |
Keyword | VDI 4640;4640 |