Mr. Tong Wang Profile

Tong Wang

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Proceedings Article | 13 December 2024 Paper

Numerical calculation of temperature distribution and infrared radiation characteristics of buildings

Yun-song Feng, Wei Jin, Si-yu Wang, Tong Wang, Chang-qi Zhou

Proceedings Volume 13493, 134930B (2024) https://doi.org/10.1117/12.3047672

KEYWORDS: Buildings, Infrared radiation, Solar radiation, Temperature distribution, Solar radiation models, Far infrared, Thermal modeling, Earth atmosphere, Infrared sensors, Infrared detectors

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The study of infrared radiation characteristics of buildings is of great significance in target identification, infrared precision guidance, remote sensing detection, urban planning and non-destructive testing protection of buildings under modern war. This paper takes a buildings as the research object, analyzes the infrared radiation characteristics of the buildings, and establishes the theoretical calculation model of its temperature field. Firstly, starting from various parameters of the buildings, this paper determines the geometric parameters, physical parameters, geographical parameters and meteorological parameters of the buildings through literature and field measurement. Then, the buildings is divided into two-dimensional meshes to determine the spatial position of each mesh and the geometric relationship with adjacent meshes. Each grid is regarded as a node by the control volume method, and the heat balance equation of each grid is established by using heat transfer and infrared radiation theory. The external surface of the buildings considers the environmental radiation, including solar radiation, atmospheric radiation, earth radiation, etc., plus the thermal radiation of the target itself. Constant temperature and no internal heat source environment shall be considered for the inner surface. The heat conduction between each grid is considered. Finally, the temperature distribution of the buildings surface at each time is obtained by measuring the initial temperature of the buildings. Finally, its infrared radiation characteristics are further studied.

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