Controlling Switchable Electrochromic Glazing for Energy Savings, Visual Comfort and Thermal Comfort: A Model Predictive Control

CivilEng

Tim Steiner¹  Steven Liu¹  Sabine Hoffmann²  Abolfazl Ganji Kheybari² 

[1] Department of Electrical and Computer Engineering, Institute of Control Systems, Technische Universitaet Kaiserslautern, 67663 Kaiserslautern, Germany;Faculty of Civil Engineering, Technische Universitaet Kaiserslautern, Paul-Ehrlich-Str. 14, 67663 Kaiserslautern, Germany;

关键词: electrochromic glazing;    model predictive control;    energy savings;    thermal and visual comfort;   

DOI  :  10.3390/civileng2040055

来源: DOAJ

【 摘 要 】

Dynamic façades play an important role in enhancing the overall performance of buildings: they respond to the environmental conditions and adjust the amount of transmitted solar radiation. This paper proposes a simulation-based framework to evaluate the energy and comfort performance of different control strategies for switchable electrochromic glazing (EC). The presented method shows the impact of a model predictive control (MPC) on energy savings and on visual and thermal comfort for different orientations compared to other strategies. Besides manual operation and conventional rule-based controls, the benchmark in this study was a simulation-based control (multi-objective penalty-based control) with optimal performance. The hourly results of various control cases were analyzed based on the established performance indicators and criteria. The cumulative annual results show the capabilities and limitations of each control strategy for an EC glazing. For a temperate climate (Mannheim, Germany), results showed that an MPC for EC glazing provides visual and thermal comfort while saving energy of up to 14%, 37%, 37%, and 34% respectively for facing north, east, south, and west relative to the base-case.

【 授权许可】

Unknown