Paper Title
Measures of Set-Back Control in Accordance with the Heat Storage Functions of Office Buildings

Setback control is an HVAC control method to conserve energy in heating or air conditioning. Peak shaving through night setback control during winter months when heating is used not only affects energy conservation in a building but also the energy supply infrastructure. In order to apply appropriate setback control, affecting factors according to the characteristics of the building must be taken into account. As such, this study presents an optimal setback control method according to the heat storage function of office buildings. A test of the function of the suggested setback control was conducted using EnergyPlus, an energy analysis program. For the analysis model, a small office among the DOE reference model was used. Depending on the control method, they were categorized into no setback model, typical setback model, and set temperature reset model. The thermal mass in each model changed depending on the location of the thermal insulating material of the structure. For the set temperature reset model, a separate set-back operation time was set. The analysis results show that the thermal mass, in accordance with the location of the thermal insulation material, is a factor affecting the zone air temperature. The suggested model, when compared to the typical setback model, had a smaller peak load and monthly energy usage, and called for a different control method depending on the heat capacity. Index Terms - Thermal mass, Set-back, Control, Peak shaving