Abstract
This paper presents an energy performance and feasibility study of Thermal Energy Storage (TES) System compared with direct supply system of chilled water to an engineering complex in UiTM. In principle, TES system is a load management technology which shift load from peak to off-peak utility periods thus reduces maximum demand of electrical needs during the day and takes advantage of the low off peak tariff offered by the utility company (TNB). Data of a month's load profile was analysed and it was found that the TES system consumed more energy by 27% compared to the direct supply system of chilled water but its maximum demand reduced by 23%. The estimated cost (RM) per day was less by only 4%, under no energy loss, due to the introduction of thermal energy storage system compared with the direct system. Under the current electricity tariff, TES system in Malaysia is not feasible economically. However, if the maximum demand electrical tariff is revised the TES system can be attractive.
Published Version
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