Energy optimization modeling for an office building in Chongqing
Jones, Phillip John
Lannon, Simon Charles
Taking an office building in Chongqing area as an example, the paper explored a systemic approach for building energy optimization through thermal simulation. Following the design procedure, such as data collection-design analysis-thermal simulation-design optimization-feasibility analysis, the approach informs concept design, detailed design, and the fit out stage. A total of 134400 simulation runs were done at the concept design stage to find out the most sensitive factors in relation to their influence to building energy optimization, which turned out to be internal heat gains, glazing G-value and glazing ratio, as well as to identify the best practical case among all. Based on that, the actual building (C7) was modeled to see its potential for energy saving at the detailed design stage and the fit out stage. Parameter settings of the design factors vary at different stages depending on their alterability. What’s more, a sensitivity tool was developed to aid architects and policy-makers in decision-making at the early stage.