高温下涂层织物传热过程的数值模拟

doi:10.11896/cldb.19070011

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Abstract The numerical model of heat transfer of coated carbon fiber fabrics at high temperature was established. The model was validated by quartz lamp ablation test, and then was used to investigate the effect of high-performance fiber types on heat transfer process, and reveal the inf-luence of structural density on the thermal insulation properties of coated fabrics. The results show that the numerical model of heat transfer of coated carbon fiber fabric can reflect the heat transfer process at high temperature. The average relative error between simulated and experimental values is 9.47% in 135 s. When it is up to 115 s, the temperature of the back of the coated glass fiber fabric is 58 ℃ lower than that of the coated carbon fiber fabric, that is, the coated glass fiber fabric has good heat insulation performance. In the case of the same fabric weave pattern and yarn fineness, when the weft density of the fabric is unchanged and the warp density is increased from 100/10 cm to 180/10 cm, the tempera-ture of the back of the coated glass fabric is reduced from 601 ℃ to 553 ℃. The temperature difference is 48 ℃. When the warp density is the same and the weft density is gradually increased from 100/10 cm to 160/10 cm, the temperature of the back of the coated glass fabric is gradually reduced from 574 ℃ to 555 ℃, and the temperature difference is 19 ℃, indicating that its thermal insulation performance is gradually enhanced.

Key words： coated fabric thermal insulation properties numerical model of heat transfer high performance fiber

Published: 24 July 2020

CLC number:

TS101.3

Fund:This work was financially supported by the Natural Science Foundation of Tianjin (18JCYBJC86600), the Technical Guidance Project of the China National Textile and Apparel Council (2017030), the Science & Technology Development Fund of Tianjin Education Commission for Higher Education (2018KJ194).

About author:: Qian Zhangreceived her master degree of engineering from Tiangong University in 2020. During the postgra-duate period, she studied the processing and development of flexible textiles.
Zhenrong Zheng is an associate professor and master’s degree student supervisor at the Tiangong University. She obtained her Ph. D. from the School of Textiles, the Tiangong University in 2010 and served at Shool of Textiles till now. Her research interests include 3D geometric modeling of woven fabric, simulation of heat transfer through fabrics, preparation and properties of functional textiles, especially the thermal protective textiles.

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	ZHANG Qian
	ZHENG Zhenrong
	ZHAO Xiaoming
	MAO Kezhu
	LUO Lijuan

Cite this article:

ZHANG Qian,ZHENG Zhenrong,ZHAO Xiaoming, et al. Numerical Simulation of Heat Transfer Process of Coated Fabrics at High Temperature[J]. Materials Reports, 2020, 34(16): 16167-16171.

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http://www.mater-rep.com/EN/10.11896/cldb.19070011 OR http://www.mater-rep.com/EN/Y2020/V34/I16/16167

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