Energy Performance Analysis and Study of an Office Building in an Extremely Hot and Cold Region

Yunbo Liu, Wanjiang Wang (), Yumeng Huang, Junkang Song and Zhenan Zhou
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Yunbo Liu: College of Architectural and Civil Engineering, Xinjiang University, Urumqi 830017, China
Wanjiang Wang: College of Architectural and Civil Engineering, Xinjiang University, Urumqi 830017, China
Yumeng Huang: College of Architectural and Civil Engineering, Xinjiang University, Urumqi 830017, China
Junkang Song: College of Architectural and Environment, Sichuan University, Chengdu 610000, China
Zhenan Zhou: School of Control and Computer Engineering, North China Electric Power University, Baoding 071000, China

Sustainability, 2024, vol. 16, issue 2, 1-29

Abstract: China is committed to reaching peak carbon by 2030 and carbon neutrality by 2060. The goals of reducing energy consumption and building a “beautiful China” are being urgently pursued in China. The building studied in this paper is located in the city of Turpan, where the problem of excessive energy use among buildings is significant due to the region’s hot summers and cold winters. Additionally, the fact that the office building studied in this paper has an east–west orientation is significant: the building’s main façade is oriented to the west, comprising a large area of single-layer glass curtain wall. Based on this, this paper proposes optimization strategies from two perspectives of renovation and new construction. Four design options are proposed at the retrofit level: glazed circular curtain wall; glazed enclosed curtain wall; west-facing double-glazed curtain wall circulation combined with south-facing light from the east; recycling of windows on the inside of the exterior glass curtain wall. These suggestions focus on retrofitting the glass curtain wall on the west elevation of the building. Two design options are proposed at the new-build level: west-facing south-oriented light and west-facing north-oriented light. These suggestions were primarily built around the idea of changing the orientation of the windows on the west elevation. The results show that the optimal solution is to implement the west-facing double-glazed curtain wall circulation combined with south-facing light from the east. This program shows a 64.14% reduction in heating energy consumption, a 77.12% reduction in cooling energy consumption, and a 69.67% reduction in total energy consumption. The above research has improved the deficiencies in the performance-based energy efficiency retrofit of office buildings in the region and provided new ideas and suggestions for policymakers and designers to build energy-efficiency retrofits in the early stages.

Keywords: building energy consumption; parametric design; office buildings; entropy-based TOPSIS method (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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