Modeling Heat and Moisture Transfer within Porous Textiles under High Temperature Gradients

Abstract:

The paper consider heat and moisture transport within cotton fabric exposed to fire as drying process. A mathematical model of simultaneous heat and moisture transfer is proposed for the prediction of temperature distributions during high heat flux condition based on the theory of drying. Shrinkage occurring in the drying zone was incorporated into the present numerical model. Using the model, we will can understand the drying mechanism and process of flame retardant cotton fabric used for thermal protective clothing. The discrete calculation and experiments will be presented in the further study.

• Periodical: Advanced Materials Research (Volumes 455-456)
• Pages: 1136-1139
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.455-456.1136
• Online since: January 2012
• Authors: Fang Long Zhu, Ke Jing Li
• Keywords: Heat, Model, Moisture Transfer, Porous Textiles, Shrinkage

References

[1] F.L. Zhu and K.J. Li, A new approach for evaluating the thermal performance of flame-resistant fabrics,. Measurement Science and Technology, Vol. 19(10): 105704, (2008).

DOI: 10.1088/0957-0233/19/10/105704

[2] R. Figueiredo and J.J. Costa, Experimental analysis of the use of wet porous media for thermal protection against high intensity heat fluxes,. International Journal of Heat and Mass Transfer, Vol. 46, pp.11-19, (2004).

DOI: 10.1016/s0017-9310(03)00413-7

[3] V. A. F. Costa, M. L. Mendonca and A. R. Figueiredo, Modeling and simulation of wetted porous thermal barriers operating under high temperature or high heat flux, International Journal of Heat and mass Transfer, Vol. 51, pp.3342-3354, (2005).

DOI: 10.1016/j.ijheatmasstransfer.2007.11.033

[4] Colomba D. B. (1998). Multi-phase moisture transfer in the high-temperature drying of wood particles. Chemical Engineering Science. 53 (2): 353-366.

DOI: 10.1016/s0009-2509(97)00197-8

[5] Helena C. D. S. Luiza, C. M. L. Oswaldo and C. P. Neliemias, Analysis of drying kinetics and moisture distribution in convective textile fabric drying,. Drying Technology. Vol. 24, pp.485-497, (2006).

DOI: 10.1080/07373930600611984

[6] P. Chitrphiromsri and A. V. Kuznetwov, Modeling heat and moisture transport in firefighter protective clothing during flash fire exposure, Heat and Mass Transfer. Vol. 41, pp.206-215, (2005).

DOI: 10.1007/s00231-004-0504-x

[7] F. L. Zhu and K. J. Li, Numerical Modeling of Heat and Moisture Through Wet Cotton Fabric Using the Method of Chemical Thermodynamic Law Under Simulated Fire, ". Fire Technology. DOI: 10. 1007/s10694-010-0201-x, (2010).

DOI: 10.1007/s10694-010-0201-x

[8] D. K. Shen, M.X. Fang,Z. Y. Luo, and K. F. Cen, Modeling pyrolysis of wet wood under external heat flux,. Fire Safety Journal. Vol. 42, pp.210-217, (2007).

DOI: 10.1016/j.firesaf.2006.09.001

[9] J. E. Carles and A. M. Scallan, The determination of the amount of bound water within cellulosic gels by NMR spectroscopy, J Appl Polym Sci., Vol. 17, pp.855-1865, (1973).

DOI: 10.1002/app.1973.070170618

[10] B.M. and J. E. Lee, A fractal in-plane permeability model for fabrics, Polym Composite, Vol. 23, pp.201-221, (2002).