Quantifying the Effect of Index-Based Operation Logic for Building Environmental Control System—Taking Shading as Example

Dynamic control of building environment control systems (BECSs) is an important procedure to realize energy consumption reduction while ensuring the occupant’s comfort. Two types of BECSs operation logic exist: parameter-based and index-based. This research concluded that based on the literature review and argumentation, index-based operation logic, advanced from parameter-based operation logic, can better fit the dynamic and complex needs of occupants. However, existing index-based operation logic is generally based on a single performance index, while the BECS operation affects the indoor environment in multiple dimensions, thus, a single index cannot describe the operation comprehensively and accurately. Therefore, this study takes shading as an example, summarizes the performance indices of index-based operation logic for shading from two dimensions, and sorts out six typical control strategies according to different control objectives. The operation effect was analyzed and quantified through simulation. The results demonstrate that the index-based operation strategy has positive effects. It is not sensitive to changes in boundary conditions and the control effect is not affected by individual factors. Meanwhile, advice on the index selection for shading is proposed.

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