Numerical Simulation of the Thermal Environment during Summer in Coastal Open Space and Research on Evaluating the Cooling Effect: A Case Study of May Fourth Square, Qingdao

Ying Zhang, Xijun Hu (), Xilun Cao and Zheng Liu
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Ying Zhang: Department of Landscape Architecture, Central South University of Forestry and Technology, Changsha 410004, China
Xijun Hu: Department of Landscape Architecture, Central South University of Forestry and Technology, Changsha 410004, China
Xilun Cao: Scientific and Technological Commission, China Urban Construction Design & Research Institute Co., Ltd., Beijing 100120, China
Zheng Liu: College of Civil Engineering and Architecture, Qingdao Agricultural University, Qingdao 266109, China

Sustainability, 2022, vol. 14, issue 22, 1-18

Abstract: Urban green space is considered an important part of urban ecological construction be-cause of the efficiency of green space in reducing ambient temperature. It was previously reported that the quantity and layout of arbors and paving are very important factors for cooling. To research the combination mode of the quantity and layout of arbors and paving able to effectively lower the temperature during the summer in a coastal open space environment where little architecture exists, we built a numerical model of heat transfer using ENVI–met numerical modeling simulation, for which the May Fourth Square in Qingdao was selected. The results showed that the ratio coverage of the arbor layer and pavement fragmentation were positively correlated with the cooling effect. We found that setting the passageway conformed to the sea breeze by arbors and close planting at the air outlet effectively reduced the site temperature. After optimizing the site’s greening layout, the cooling effect over the process of time decreased in the height direction. At the same time, the cooling effect increased before 15:00 and then reduced gradually in the time dimension. Compared to the original site, the total cooling efficiency reached 1.41 × 108 J, equaling electric energy of about 39.2 kW·h. This research solves the issue of the synergy between planting and pavement for cooling coastal open spaces in summer and provides a basis to formulate a promotion strategy for landscape design areas with similar geographical and climatic conditions.

Keywords: coastal open space; cooling effect; ENVI–met simulation; arbor planting form; pavement frag-mentation (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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