Drury B. Crawley, Daniel M. Sander, Steve Cornick, Guy R. Newsham
Year:
1993
Bibliographic info:
Building Simulation, Australia, 1993, p. 223-230

A new energy efficiency code for nonresidential buildings is being developed in Canada. This code will have three compliance paths for building envelope requirements-simple prescriptive tables, a trade off procedure, and whole-building energy performance modelling. A simple means of estimating the relationship between building envelope characteristics and energy consumption was needed both for economic analyses to select prescriptive envelope values, and as the basic energy model for tradeoff compliance software. A simplified energy model has been derived from a database of 5,400 DOE-2 simulations for 25 Canadian locations. Correlations developed from this database allow prediction of annual heating and cooling energy loads based on location, building envelope characteristics (area, wall and fenestration U-values, and shading coefficients), and internal gains (people, lights, and equipment). This paper describes the development of the energy database and the correlation equations, and compares the correlations' predictions of heating and cooling energy with those of the original DOE-2 simulations.