Paper Conference

Proceedings of ASim Conference 2012: 1st Asia conference of IBPSA-China, Japan, Korea


Whole building energy performance evaluation through similar control strategies

Sehwan Cheon, Yoonghoon Kwak, Cheolyong Jang, Jungho Huh

Abstract: The energy consumption of architectural environment system accounts for the most proportion in life cycle cost, and it can be efficiently reduced through Building Automation System(BAS) based on Building Energy Management System(BEMS). There are similar controls among the BAS control strategies. However, there are almost no studies that compare the building energy performance of such similar controls. Accordingly, this study compares and analyzes the building energy performance of similar controls and then decides which control strategy appears to derive the most benefit during cooling season. The real target building model is modelled by using EnergyPlus and verified through comparing the actual energy consumption with the simulated energy consumption. After that, temperature control and enthalpy control which are to manipulate the outdoor air flow rate by comparing the thermal properties of return air are applied to verified model. In addition, the zero energy band and duty cycling are performed to determine the operational status of AHU by measuring indoor temperature. Results shows that the enthalpy control is more beneficial than the temperature control, and the duty cycling is more reliable than the zero energy band. According to the result of this study, it is found that it is better to apply the control that is good building energy performance in the similar control strategies. In the design phase, the control that is good building energy performance in the similar control strategies can be preferentially selected, and, furthermore, they can be integrated into one.
Pages: 582 - 588