Abstract
In this paper, the optimal thickness of multilayer special clothing material under the high temperature operation based on the inverse problems is studied. We analyze the parameters of the thickness of thermal insulation clothing material and the surface temperature of the dummy. Using the least-squares fitting, the function with the distribution of the dummy surface temperature is established. Then the heat transfer model and optimization model to obtain the optimal thickness of different clothing layers are built, respectively. Taking the true data as an example, we give the application of thermal insulation clothing in fire area, and the results show that the models are feasible.
Highlights
In fire, metal smelting, and other high temperature work, staffs are in the high temperature and high radiation environment
This paper studies three-layer thermal insulation clothing and the air layer based on the inverse problems method and established the heat transfer model of each layer and optimization model
Based on the current situation of the fire field in China [14], this paper explores the application of the heat transfer model and optimization model established above in the thermal insulation clothing
Summary
Metal smelting, and other high temperature work, staffs are in the high temperature and high radiation environment. Scholars mainly study the radiation heat of its external flame, the physical properties of the fabric, and the influence of the thickness of the air layer between the fabric and the skin on the performance of the thermal insulation clothing [4]. Gibson [5] first proposed the heat and mass transfer model of single-layer porous media at high temperature. Ghazy [8] made a further study on all aspects of the air layer skin system of thermal protective clothing and established the heat transfer model of single-layer fabric in motion. This paper studies three-layer thermal insulation clothing (shell, waterproof, and thermal insulation) and the air layer based on the inverse problems method and established the heat transfer model of each layer and optimization model. The high temperature insulation material performance under working is concluded
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