Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/45948
Title: Integrated retrofitting strategy for enhanced energy efficiency in a tropical building
Authors: Sekhar, S.C. 
Phua, K.J.
Issue Date: 2003
Source: Sekhar, S.C.,Phua, K.J. (2003). Integrated retrofitting strategy for enhanced energy efficiency in a tropical building. ASHRAE Transactions 109 PART 1 : 202-214. ScholarBank@NUS Repository.
Abstract: This paper reports our findings from a study in an institutional building complex in Singapore with significant load diversity, aimed at improving the energy efficiency of a conventional chilled water plant (CCWP) during a retrofitting activity. An energy simulation program is used for the evaluation of different energy conservation opportunities, preceded by an initial exploration involving a validation of the computer model with historic energy use through a comparison with actual energy data. The concept of an integrated retrofitting strategy is used that is aimed at optimizing component performance by a combination of different strategies. Retrofitting techniques for an old or conventional chilled water plant that relies on minimization of cooling demands and optimization of equipment can achieve roughly a 47% reduction in yearly energy use over CCWP. A further retrofit of the old equipment with energy efficient chillers and motors with VSD control will yield up to 51% energy conservation.
Source Title: ASHRAE Transactions
URI: http://scholarbank.nus.edu.sg/handle/10635/45948
ISSN: 00012505
Appears in Collections:Staff Publications

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