A Study on Optimal Control of Slab Cooling Storage Considering Stochastic Properties of Internal Heat Generation

Abstract In this paper, a method to obtain the probability distribution of room temperature and cooling load is presented,when the internal heat generation is applied to the system as a disturbance in the air conditioning system with slab coolingstorage. The probability distribution of room temperature and the cooling load due to the disturbance were examined inone room of an office building. When considering only the electric power consumption as a probability component, it was found that the effect on room temperature and cooling load is small, because the probability component of the measuredelectric power consumption in the building is small. On the other hand, when considering the stochastic fluctuations of electric power consumption together with the heat generated by human bodies, the mean value of the cooling load wasabout 2,300 W and the ratio of the standard deviations was 19% (10 o’clock in second day). It was revealed that the stochasticeffects of internal heat generation acting on the air conditioning system with slab cooling storage are not small.