Influence of controller types in HVAC split systems on zone comfort and energy comsumption

This  article  introduces  the  modelling  of  the  split system (room air conditioner) with a continuous action controller for a building energy simulation. This model shows a way to calculate the energy consumption, the sensible and latent cooling capacity of the split system at part load operation matching the sensible and latent cooling zone loads. As a result, the zone air states can be exactly determined. The model of the split system with a two-point- controller has already been developed and verified (Neymark and Judkoff 1998; Neymark and Judkoff 2000; Knabe and Le 2000a). Results of the simulation show an impact of the two controller types  on  both  the  room comfort  (temperature  and humidity) and the energy consumption.