Performance of precooling strategies using switchable insulation systems for commercial buildings

被引：12
作者：
Dehwah, Ammar H. A. [1 ]
Krarti, Moncef [1 ]
机构：
[1] Univ Colorado, Civil Environm & Architectural Engn Dept, Bldg Syst Program, Boulder, CO 80309 USA
来源：
APPLIED ENERGY | 2021年 / 303卷
关键词：
Roofs; Commercial buildings; Switchable insulation systems; Precooling; Rulesets; THERMAL MASS; CONTROL OPTIMIZATION; ENERGY SAVINGS; DESIGN; LIMITATIONS;
D O I：
10.1016/j.apenergy.2021.117631
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The energy efficiency and demand response benefits of switchable insulation systems (SISs) are evaluated for commercial buildings based on a comprehensive simulation analysis. In particular, switchable insulation systems, operated using temperature-based controls, are combined with precooling strategies to maximize the benefits from passive thermal storage of commercial buildings. The performance of switchable insulation systembased precooling strategies has been evaluated considering a wide range of design and operational control parameters. The simulation results indicate that switchable insulation system can achieve significant savings in annual heating and cooling energy end-uses reaching up to 65% and 25%, respectively, when considering deploying roof-integrated switchable insulation system during weekends in addition to weekdays for the various investigated climates. Moreover, the analysis found that when combined with precooling, the energy efficiency benefits from switchable insulation system are decreased. However, switchable insulation system-based precooling results in significant savings in electrical peak demand. For instance, operating switchable insulation system with precooling results in 18% savings in electrical peak demand when the building is located in Denver, CO. It has been demonstrated that precooling and switchable insulation system can provide both energy efficiency and demand response benefits for commercial buildings located in the US and other countries with diverse climates.
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页数：21
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