Multi-Objective Optimization of Daylight Performance and Thermal Comfort of Enclosed-Courtyard Rural Residence in a Cold Climate Zone, China

Aisikaer Molake, Rui Zhang () and Yihuan Zhou
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Aisikaer Molake: School of Architecture and Engineering, Xinjiang University, Urumqi 830047, China
Rui Zhang: School of Architecture and Engineering, Xinjiang University, Urumqi 830047, China
Yihuan Zhou: School of Architecture and Engineering, Xinjiang University, Urumqi 830047, China

Sustainability, 2023, vol. 15, issue 10, 1-22

Abstract: This study explored the daylight performance, thermal comfort, and energy-saving level of enclosed-courtyard rural residences with covered roofs in a cold IIA region of China. Using daylight autonomy (DA), annual mean value of PMV (AUM PMV ), and total energy consumption of heating, cooling and lighting (E hcl ) in a performance evaluation index, a courtyard roof was optimized in a multi-objective fashion and analyzed for its effect on residential performance. This was achieved through field investigation and mapping, setting the prototype building model in the Rhino platform, and carrying out the iterative optimization design of the roof with a Ladybug tool component. The results show that appropriate roof form can significantly improve daylight performance, thermal comfort, and energy savings. Compared to the open-courtyard rural residence prototype model, the spatial daylight autonomy (sDA) of a flat-skylight-enclosed-courtyard residence decreased by only 0.94%, and AUM PMV improved significantly from −0.774 to 0.87. The E hcl decreased by 19.7%, and compared with setting a large area of flat skylights on the roof, a reasonable clerestory window roof can achieve better residence performance.

Keywords: rural residence; enclosed courtyard; roof form; multi-objective optimization (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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