earticle

영어

The HVAC systems require large amount of electrical energy use to maintain cooling set point temperature during summertime. Especially, 60% of total energy use in the United States is consumed in operating HVAC systems and plants in commercial buildings during summer. Therefore, the research investigates an effective method to reduce the peak electricity and energy use in a office building utilizing the thermal capacity of building structure with the comparison between a optimal control system for building systems and a conventional control system. The simulation results indicates that the outside insulation installation is more effective way than the inside installation to utilize the effect of thermal capacitance, however the maximum peak electricity and energy use are reduced less than 4%. The optimal control of HVAC system demonstrates the shift of peak electricity from daytime to nighttime regardless of the thermal capacity of building structure. Moreover it reduces the peak electricity and energy
use with comparison to the conventional HVAC system control, which utilize the fixed set point temperature at daytime. In addition, it provides the superior indoor thermal comfort for building residents during the occupancy periods.
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