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The Analysis of Life Cycle Cost and Cooling Water Circulating Pump Energy Saving According to Variable Speed Pressure Differential Setpoint Control Strategy
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  • Journal title : KIEAE Journal
  • Volume 15, Issue 4,  2015, pp.37-43
  • Publisher : Korea Institute of Ecological Architecture and Environment
  • DOI : 10.12813/kieae.2015.15.4.037
 Title & Authors
The Analysis of Life Cycle Cost and Cooling Water Circulating Pump Energy Saving According to Variable Speed Pressure Differential Setpoint Control Strategy
Kim, Seo-Hoon; Kim, Jong-Hun; Jang, Cheol-Yong; Song, Kyoo-dong;
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 Abstract
Purpose : The study applied control strategy to reduce through optimal control and operation of pump by applying control on variable speed to the circulation pump of HVAC system in the office building. The study has the purpose to review validity of control on variable speed as ESMs(Energy Saving Measures) and establish the control technology on variable speed pump. The study performed reduction analysis of building energy and economic evaluation of pump through energy effectiveness control strategy of HVAC system. Method: The study sought possible reduction through energy control strategy which can provide proper flow fitting to building load by applying control on variable speed pump. The study applied control strategy to reduce through pressure differential set-point control and operation of pump by applying control on variable speed to the circulation pump of HVAC system in the office building. Result : The results showed that about 16-35% of pump energy could be saved by using these optimal control strategies. In the result of analysis on 10 years life cycle cost of analysis on payback period of initial investment pump, variable speed pump control showed 5.1 years.
 Keywords
Variable speed pump;Variable frequency drives;Pressure differential setpoint;Life cycle cost;Building energy saving;
 Language
English
 Cited by
 References
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