Conference Paper

Proceedings of eSim 2014: 8th Conference of IBPSA-Canada

Cooling Tower, Pump and Fan 004 – Component Constraints of EnergyPlus when performing the whole building energy simulation for LEED

Zhuzhou Fu, Annie Marston, Oliver Baumann

Abstract: According to Appendix G of ANSI/ASHRAE/IESNA Standard 90.1, there are certain requirements for simulating system operation and the equipment efficiencies. However, the modellers should be aware of some very important considerations to ensure compliance with manufacturer’s specifications and the standards due to the default values and calculations methods in EnergyPlus™. This paper presents the observations from a case-study where an EnergyPlus™ model was developed to satisfy the requirements of EAc1 for LEED. Under LEED Energy and Atmosphere credit-1 (EAc1) Option 1, an evaluation of the building performance is required through whole building energy simulation. Several parameters related to the components of pump, cooling tower, fan were identified that need to be accurately input in the energy model. The underlying principles and the subsequent calculations involved to achieve compliance with the standards would be presented in this paper. Furthermore, suggestions to accurately model these components to perform the simulation accurately would be presented.
Pages: 223 - 234
Paper: