Simplified Calculation of T sol Based on Dynamic Numerical Simulation of T sky in Diverse Climates in China

Jie Chen, Yue Fan () and Menghan Wang
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Jie Chen: School of Architecture & Urban Planning, Shenzhen University, Shenzhen 518060, China
Yue Fan: School of Architecture & Urban Planning, Shenzhen University, Shenzhen 518060, China
Menghan Wang: School of Architecture & Urban Planning, Shenzhen University, Shenzhen 518060, China

Sustainability, 2023, vol. 15, issue 1, 1-14

Abstract: An accurate calculation of sol-air temperature ( T sol ) is very important for urban environments and building energy consumption. There are various methods that can be used to calculate T sol by considering sky radiation effects. Climate conditions are vital factors affecting sky temperature ( T sky ). In this paper, in order to select an appropriate calculation method to determine long-wave radiation, a theoretical analysis was carried out based on the effect of T sky on the thermal gain of building envelopes due to long-wave radiation. Typical annual meteorological data were selected to calculate T sol for 10 meteorological stations covering five building thermal zones in China. The application of the T sol model was studied using MBE as the measurement standard, and a linear regression equation for the calorific value of the envelope obtained via the T sky estimation method and the T sky dynamic calculation method was established. The results show that relative humidity is the key meteorological factor that affects the application of the T sol model and that the T sky dynamic calculation should be used to calculate long-wave radiation in regions with low relative humidity. A thermal correction equation for buildings was obtained for use in areas lacking meteorological data and to provide a basis for sustainable building design.

Keywords: climate adaptability; sol-air temperature; the sky temperature; building envelope (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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