Air flow rate of Fan Coil Units (FCU) can affect cut off pump time in an air conditioning system, with controling air flow distribution to realization thermal comfort conditions in a residential building. With using secondary cycle of chiller system, a pump working for circulating chilled water through a FCU, for cooling system by Encapsulated Ice and water in Thermal Energy Storage (TES). A half of valve be opened for circulating volume flow rate of chilled water as normal condition. The thermostat use to controling room temperature at 26°C manually. The objective of this current study is to observ cut off pump power consumption. The Experiment is running in 8 hours with variations air flow rate 1.234 m/s and 2.432 m/s. The overall resultsshow that power consumption of pump can reduce around 15.11 % and 31.25%.Keywords: Encapsulated Ice, TES, Chiller.
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