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Development and Verification for the Control Method Using Surplus Pressure of Primary Pumps in Chiller Plant Systems for Air Conditioning which Adopts Primary/Secondary Piping Systems PPT
Date
2012Metadata
Show full item recordAbstract
The primary/secondary piping systems are often employed in large chiller plant Systems.
Normally, the primary flow becomes more than secondary flow, and the flow difference
returns to a chiller via decoupler, which is common to primary flow loop (chiller side) and
secondary flow loop (load side). It is a huge energy loss, because the primary pumps use their
head to lead much flow to the decoupler. Therefore, we have developed new control method
using surplus pressure of the primary pump to reduce the primary and secondary pumps'
energy. In this paper, we used this control method to the actual chiller plant buildings and
verified its effectiveness. As a result, cold water conveyances, both primary loop and
secondary loop, could be covered by only primary pumps during plant operating time, and the
water conveyance power energy was reduced approximately 80%.
Subject
Primary/Secondary piping systemWater conveyance power
Control method for energy conservation
Citation
Matsushita, N.; Fujimura, M.; Sumiyoshi, D.; Akashi, Y. (2012). Development and Verification for the Control Method Using Surplus Pressure of Primary Pumps in Chiller Plant Systems for Air Conditioning which Adopts Primary/Secondary Piping Systems PPT. Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu). Available electronically from https : / /hdl .handle .net /1969 .1 /148935.