Study on the Influence and Optimization of Skylight Daylighting Spatial Form on Light and Thermal Performance in Shallow Buried Subway Stations: A Case Study of Shanghai

The rapid development of urban subway network is prompting higher requirements for daylighting in subway stations. The skylight daylighting space of shallow buried subway stations not only improves the quality of light environment but also brings challenges for the optimization of light and thermal...

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Main Authors: Xinyu Liu, Bo Sun, Xiang Ji, Chen Hua, Yidong Chen, Hong Zhang
Format: Article
Language:English
Published: MDPI AG 2025-06-01
Series:Buildings
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Online Access:https://www.mdpi.com/2075-5309/15/11/1926
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author Xinyu Liu
Bo Sun
Xiang Ji
Chen Hua
Yidong Chen
Hong Zhang
author_facet Xinyu Liu
Bo Sun
Xiang Ji
Chen Hua
Yidong Chen
Hong Zhang
author_sort Xinyu Liu
collection DOAJ
description The rapid development of urban subway network is prompting higher requirements for daylighting in subway stations. The skylight daylighting space of shallow buried subway stations not only improves the quality of light environment but also brings challenges for the optimization of light and thermal performance, especially in areas with hot summers and cold winters. In this paper, key parameters such as illumination, air temperature, and the black sphere temperature of skylight and artificial lighting areas at stations A and B in Shanghai were tested with a field test system. The results show that the light environment in the skylight areas was significantly improved, but the need for regulation and control of the thermal environment increased. Combined with response surface analysis, 10 sample models for two types of daylighting space (partitioned and open atrium styles) were studied and constructed, including 254 simulated working conditions. The results reveal that design parameters such as the number, aspect ratio, depth of light openings, and skylight angle have significant effects on combined energy consumption. The decentralized double slope roof daylighting space has the best performance in partitioned and open atrium-style public areas, and combined energy consumption can be reduced to 385.14 kWh/m<sup>2</sup>. The optimization strategies proposed in this study can provide a quantitative basis for the skylight design of shallow buried subway stations and an important reference for the design of low-carbon and energy-saving underground spaces.
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spelling doaj-art-2d61be305dac455dbdeabe6ecda7915c2025-08-20T02:23:06ZengMDPI AGBuildings2075-53092025-06-011511192610.3390/buildings15111926Study on the Influence and Optimization of Skylight Daylighting Spatial Form on Light and Thermal Performance in Shallow Buried Subway Stations: A Case Study of ShanghaiXinyu Liu0Bo Sun1Xiang Ji2Chen Hua3Yidong Chen4Hong Zhang5School of Geography, Geomatics and Planning, Jiangsu Normal University, Xuzhou 221000, ChinaSchool of Architecture, Southeast University, Nanjing 210096, ChinaJiangsu Collaborative Innovation Center for Building Energy Saving and Construction Technology, Xuzhou 221000, ChinaChangzhou Metro Group Co., Ltd., Changzhou 213000, ChinaSchool of Mechanics & Civil Engineering, China University of Mining and Technology, Xuzhou 221000, ChinaSchool of Architecture, Southeast University, Nanjing 210096, ChinaThe rapid development of urban subway network is prompting higher requirements for daylighting in subway stations. The skylight daylighting space of shallow buried subway stations not only improves the quality of light environment but also brings challenges for the optimization of light and thermal performance, especially in areas with hot summers and cold winters. In this paper, key parameters such as illumination, air temperature, and the black sphere temperature of skylight and artificial lighting areas at stations A and B in Shanghai were tested with a field test system. The results show that the light environment in the skylight areas was significantly improved, but the need for regulation and control of the thermal environment increased. Combined with response surface analysis, 10 sample models for two types of daylighting space (partitioned and open atrium styles) were studied and constructed, including 254 simulated working conditions. The results reveal that design parameters such as the number, aspect ratio, depth of light openings, and skylight angle have significant effects on combined energy consumption. The decentralized double slope roof daylighting space has the best performance in partitioned and open atrium-style public areas, and combined energy consumption can be reduced to 385.14 kWh/m<sup>2</sup>. The optimization strategies proposed in this study can provide a quantitative basis for the skylight design of shallow buried subway stations and an important reference for the design of low-carbon and energy-saving underground spaces.https://www.mdpi.com/2075-5309/15/11/1926shallow buried subway stationsskylightslight and thermal performanceresponse surface analysisbuilding
spellingShingle Xinyu Liu
Bo Sun
Xiang Ji
Chen Hua
Yidong Chen
Hong Zhang
Study on the Influence and Optimization of Skylight Daylighting Spatial Form on Light and Thermal Performance in Shallow Buried Subway Stations: A Case Study of Shanghai
Buildings
shallow buried subway stations
skylights
light and thermal performance
response surface analysis
building
title Study on the Influence and Optimization of Skylight Daylighting Spatial Form on Light and Thermal Performance in Shallow Buried Subway Stations: A Case Study of Shanghai
title_full Study on the Influence and Optimization of Skylight Daylighting Spatial Form on Light and Thermal Performance in Shallow Buried Subway Stations: A Case Study of Shanghai
title_fullStr Study on the Influence and Optimization of Skylight Daylighting Spatial Form on Light and Thermal Performance in Shallow Buried Subway Stations: A Case Study of Shanghai
title_full_unstemmed Study on the Influence and Optimization of Skylight Daylighting Spatial Form on Light and Thermal Performance in Shallow Buried Subway Stations: A Case Study of Shanghai
title_short Study on the Influence and Optimization of Skylight Daylighting Spatial Form on Light and Thermal Performance in Shallow Buried Subway Stations: A Case Study of Shanghai
title_sort study on the influence and optimization of skylight daylighting spatial form on light and thermal performance in shallow buried subway stations a case study of shanghai
topic shallow buried subway stations
skylights
light and thermal performance
response surface analysis
building
url https://www.mdpi.com/2075-5309/15/11/1926
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