Great energy predictor shootout II: Modeling energy use in large commercial buildings
- Pacific Northwest National Labs., Richland, WA (United States). Building Sciences Group
The 1994 Great Energy Predictor Shootout II (GEPS), sponsored by ASHRAE Technical Committees TC 4.7, Energy Calculations and TC 1.5, Computer Applications, involved modeling/predicting heating, cooling, and electric energy consumption in two large institutional buildings in central Texas (an engineering center and a business school building). This paper describes the methodology used by one of the winning GEPS entries. Energy consumption ({dot E}) in a large commercial building is a complex function of climatic conditions, building characteristics, building use, system characteristics, and type of heating, ventilating, and air-conditioning (HVAC) equipment used. Therefore, multiple linear regression (MLR) models and nonlinear modeling approaches, such as artificial neural network (ANN) models, tend to provide better modeling capabilities than simple linear regression modeling approaches. The heating and cooling energy consumption in both buildings is modeled using the MLR approach. The electric energy consumption at both sites is weather-independent and is a function of only the building`s operating schedule; therefore, it is modeled using a daytyping algorithm. At the engineering center, the coefficient of variation (CV) for electric energy end-uses varied from 1% to 6%, while the CV for cooling energy consumption ({dot E}{sub c}) and heating energy consumption ({dot E}{sub h}) varied from 10% to 33%. At the business school building, the CV for electric energy end-use varied from 5% to 14%, while the CV for {dot E}{sub c} and {dot E}{sub h} consumption varied from 27% to 36%.
- OSTI ID:
- 433741
- Report Number(s):
- CONF-960606-; TRN: IM9709%%175
- Resource Relation:
- Conference: 1996 annual meeting of the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), Inc., San Antonio, TX (United States), 22-26 Jun 1996; Other Information: PBD: 1996; Related Information: Is Part Of ASHRAE transactions 1996: Volume 102, Part 2; PB: 836 p.
- Country of Publication:
- United States
- Language:
- English
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