Abstract
Building energy codes for public buildings in most countries apply one set of energy-saving benchmarks to one single building type, or one-to-one energy indices. However, a single mix-use building comprises several functional areas and diversified operation hours. As a result, the one-to-one system is losing its reliability and fairness as buildings become more complex, and the need for a set of dynamic building energy indices emerges. This paper has created ENVLOAD, a dynamic system with 6 functional areas and predictive equations, which were simulated by eQUEST software and an experimental method based on parameters of the building envelope, air-conditioning schedule and indoor heat density. The equations prove to have strong predictive power with correlation coefficients between 0.88-0.96. These ENVLOAD indices modified for Taiwan's building energy codes can be applied to a wide range of complex and mixed-use public and commercial buildings.
