Energy Impacts of Chilled-Water-Piping Configuration

Hubbard, Roy S.
November 2011
Heating/Piping/Air Conditioning Engineering;Nov2011, Vol. 83 Issue 11, p20
The article discusses the energy consumption of chilled-water-piping configurations, as well as the properties of equipment-room space, control complexity, and installed cost. It mentions the three basic chilled-water-piping configurations which include constant primary flow (CPF), constant primary flow/variable secondary flow (P/S), and variable primary flow (VPF). Furthermore, it mentions that VPF has the biggest possibility for energy savings due to variable-speed pumping efficiencies.


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