Study on Relationship between Shading and Outdoor Air Temperature Based on the Comparison of Two High-Rise Residential Estates with Field Measurements

High-rise residential estates are characterized by high floor area ratios, many floors, and similar green area ratios. Beijing is hot in summer, and shading is an important strategy to improve the outdoor thermal environment of residential estates in summer. With respect to the morphological charact...

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Main Authors: Wenwen Li, Zhengnan Zhou, Shuyang Zhang, Jiajia Feng
Format: Article
Language:English
Published: MDPI AG 2022-10-01
Series:Buildings
Subjects:
Online Access:https://www.mdpi.com/2075-5309/12/11/1813
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author Wenwen Li
Zhengnan Zhou
Shuyang Zhang
Jiajia Feng
author_facet Wenwen Li
Zhengnan Zhou
Shuyang Zhang
Jiajia Feng
author_sort Wenwen Li
collection DOAJ
description High-rise residential estates are characterized by high floor area ratios, many floors, and similar green area ratios. Beijing is hot in summer, and shading is an important strategy to improve the outdoor thermal environment of residential estates in summer. With respect to the morphological characteristics of high-rise residential estates, three types of shading were summarized, and their relationships with air temperature were quantified and analyzed. The three types of shading are building–tree integrated shading, building shading, and tree shading. Two residential estates that can represent the morphological characteristics of high-rise residential estates in Beijing were selected for field measurements, and the cooling effects of the three types of shading were obtained by analyzing the measured data. In the same residential estate, the daytime air temperature difference between shaded and un-shaded areas can be 0.5 °C or more. It was found that building–tree integrated shading has the most significant cooling effect, with building shading and tree shading second. The cooling effect of shading decreases with time, with morning shading having the greatest effect, and afternoon shading having the least effect.
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spelling doaj.art-53f096ad323946f481126ffe670cb0142023-11-24T03:58:04ZengMDPI AGBuildings2075-53092022-10-011211181310.3390/buildings12111813Study on Relationship between Shading and Outdoor Air Temperature Based on the Comparison of Two High-Rise Residential Estates with Field MeasurementsWenwen Li0Zhengnan Zhou1Shuyang Zhang2Jiajia Feng3School of Architecture, Tsinghua University, Haidian District, Beijing 100084, ChinaSchool of Architecture, Tsinghua University, Haidian District, Beijing 100084, ChinaSchool of Architecture, Tsinghua University, Haidian District, Beijing 100084, ChinaSchool of Architecture, Tsinghua University, Haidian District, Beijing 100084, ChinaHigh-rise residential estates are characterized by high floor area ratios, many floors, and similar green area ratios. Beijing is hot in summer, and shading is an important strategy to improve the outdoor thermal environment of residential estates in summer. With respect to the morphological characteristics of high-rise residential estates, three types of shading were summarized, and their relationships with air temperature were quantified and analyzed. The three types of shading are building–tree integrated shading, building shading, and tree shading. Two residential estates that can represent the morphological characteristics of high-rise residential estates in Beijing were selected for field measurements, and the cooling effects of the three types of shading were obtained by analyzing the measured data. In the same residential estate, the daytime air temperature difference between shaded and un-shaded areas can be 0.5 °C or more. It was found that building–tree integrated shading has the most significant cooling effect, with building shading and tree shading second. The cooling effect of shading decreases with time, with morning shading having the greatest effect, and afternoon shading having the least effect.https://www.mdpi.com/2075-5309/12/11/1813high-rise residential estatesshadingoutdoor air temperaturesky view factor (SVF)
spellingShingle Wenwen Li
Zhengnan Zhou
Shuyang Zhang
Jiajia Feng
Study on Relationship between Shading and Outdoor Air Temperature Based on the Comparison of Two High-Rise Residential Estates with Field Measurements
Buildings
high-rise residential estates
shading
outdoor air temperature
sky view factor (SVF)
title Study on Relationship between Shading and Outdoor Air Temperature Based on the Comparison of Two High-Rise Residential Estates with Field Measurements
title_full Study on Relationship between Shading and Outdoor Air Temperature Based on the Comparison of Two High-Rise Residential Estates with Field Measurements
title_fullStr Study on Relationship between Shading and Outdoor Air Temperature Based on the Comparison of Two High-Rise Residential Estates with Field Measurements
title_full_unstemmed Study on Relationship between Shading and Outdoor Air Temperature Based on the Comparison of Two High-Rise Residential Estates with Field Measurements
title_short Study on Relationship between Shading and Outdoor Air Temperature Based on the Comparison of Two High-Rise Residential Estates with Field Measurements
title_sort study on relationship between shading and outdoor air temperature based on the comparison of two high rise residential estates with field measurements
topic high-rise residential estates
shading
outdoor air temperature
sky view factor (SVF)
url https://www.mdpi.com/2075-5309/12/11/1813
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AT zhengnanzhou studyonrelationshipbetweenshadingandoutdoorairtemperaturebasedonthecomparisonoftwohighriseresidentialestateswithfieldmeasurements
AT shuyangzhang studyonrelationshipbetweenshadingandoutdoorairtemperaturebasedonthecomparisonoftwohighriseresidentialestateswithfieldmeasurements
AT jiajiafeng studyonrelationshipbetweenshadingandoutdoorairtemperaturebasedonthecomparisonoftwohighriseresidentialestateswithfieldmeasurements