Refrigeration – Structural installation – Geographic – e.g. – subterranean feature
Patent
1987-04-16
1989-02-21
Bennet, Henry A.
Refrigeration
Structural installation
Geographic, e.g., subterranean feature
62498, F25D 2312
Patent
active
048054151
ABSTRACT:
A subterranean excavation such as a mine working is cooled by a refrigeration plant having a heat rejection system at an upper station and a heat absorption system in the excavation, the refrigerant medium being ammonia. The system includes a surge drum at the upper station and maybe also at the excavation. Safety measures include the location of the vapor and liquid pipes in a borehole separate from the mine shaft or shafts.
Van Der Walt Johannes
Van Rensburg Carl S. J.
Bennet Henry A.
General Mining Union Corporation Limited
Razzano Pasquale A.
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