Renovation Methods for Atrium-Style Educational Buildings Based on Thermal Environment Testing in Cold Regions of China
While cold regions in China experience harsh winters, their summers also present significant overheating challenges in atrium-style buildings due to excessive solar gain. This study investigates the thermal environment of a non-ventilated atrium educational building located in a cold region of China...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-06-01
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| Series: | Buildings |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-5309/15/12/2077 |
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| Summary: | While cold regions in China experience harsh winters, their summers also present significant overheating challenges in atrium-style buildings due to excessive solar gain. This study investigates the thermal environment of a non-ventilated atrium educational building located in a cold region of China, with tests conducted throughout the four seasons. The findings indicate that the atrium temperature is 1.7 °C, 1.1 °C, and 1.7 °C lower than that of the inner corridor during spring, autumn, and winter, respectively, but 0.6 °C higher in summer. From 7:00 a.m. to 10:00 p.m. on summer days, north-facing rooms with horizontal shading are 0.5 °C warmer than those facing south. A retrofit strategy that combines ventilated atrium shading with north-facing vertical shading is proposed, leading to a 0.7 °C reduction in atrium temperature and a 9.4% decrease in summer air conditioning energy consumption. Additionally, this study develops a retrofit framework for existing buildings, encompassing scope definition, diagnostics, strategy formulation, and evaluation to support high-quality renovations. |
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| ISSN: | 2075-5309 |