Paper Conference
Proceedings of ASim Conference 2014: 2nd Asia conference of IBPSA-China, Japan, Korea
 
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A numerical investigation on the effect of operation control of a multi-split air-conditioning system on indoor thermal environment
Hiroki Matsunaga, Satoru Iizuka, Masaya Okumiya, Gyuyoung Yoon, Hideharu NiwaAbstract: In this study, a numerical investigation on the effect of operation control of an air-conditioning system (multi-split air-conditioning system) on the indoor thermal environment during a power-saving period in summer was performed by a coupled analysis of CFD and HVAC system simulations. In the operation control, one of the indoor units was forced to change from a cooling mode to a fan mode. Two different forced operation controls, i.e., a simple/regular rotation control and a lowest reference temperature control, were introduced, and the difference in the effect on the indoor thermal environment was investigated. For creating a more uniform thermal environment, the lowest reference temperature control was better than the regular rotation control. Keywords: CFD, HVAC system simulation, Multi-split air-conditioning system, Forced operation control, Indoor thermal environmentPages: 147 - 154 Paper:asim2014_014_a2-28-340