Determining Temperature Regulating Factor for Refrigeration Engineering Phase Change Material

Abstract:

In order to characterize the temperature regulating ability of fabrics containing phase change material (PCM), the test has been designed. To assess temperature regulating ability, temperature regulating factor (TRF) is determined. TRF is defined as a quotient of the amplitude of the temperature variation of the hot plate and the amplitude of the heat flux variation divided by the steady state heat resistance of the fabric. The test instrument presented here is intended to be used for testing steady state and transient state characteristics of the apparel fabrics containing the PCMs. This test instrument can be used in quality control during the manufacture of fabrics containing PCMs. TRF can be used in clothing industry to establish the criteria for comfort parameters of textiles.

• Periodical: Applied Mechanics and Materials (Volume 521)
• Pages: 605-608
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.521.605
• Online since: February 2014
• Authors: Jia Zheng*, Jie Li, Xiang Yi Guan, Shuang Han, Yi Ming Zhang
• Keywords: Engineering, Environment Protection, Temperature Measurement, Thermal Efficiency

References

[1] Bendkowska, W. (2000), Thermal insulation of apparel textiles with PCM, paper presented at the Frankfurt am Main, November 2000, International Symposium Avantex.

[2] Cox, R. (2000), Outlast – thermal regulation were it is needed, paper presented at the 39th International Man-Made Fibres Congress, Dornbirn, September (2000).

[3] Hittle, D.C. and Andre, T.L. (2001), A new procedure for evaluation of fabrics containing phase change materials, available at: www. engr. colostate. edu (accessed January 2001).

[4] Nuckols, M.L. (1999), Analytical modeling of a diver dry suit enhanced with microencapsulated phase change materials, Ocean Engineering, Vol. 26, pp.547-64.

DOI: 10.1016/s0029-8018(98)00001-8

[5] Pause, B. (2000), Textiles with improved thermal capacities through the application of phase change materials (PCM) microcapsules, Melliand Textilberichte, Vol. 81, pp. E179-8.

[6] Shim, H. et al. (2001), Using phase change materials in clothing, Textile Research Journal, Vol. 71, pp.495-502.

[7] Joudi, K.A. (1999), Computer simulation of a two phase thermosyphon solar domestic hot water heating system.

DOI: 10.1016/s0196-8904(98)00115-0

[8] Energy Conversion and Management, Vol. 40, pp.775-93.

[9] Kehrer, M., Kunzel, H. and Sedlbauer, K. (2003), Ecological insulation materials: does sorption moisture affect their insulation performance", Journal of Thermal Envelope and Building Science, Vol. 26 No. 3, pp.207-12.

DOI: 10.1177/109719603027869

[10] Koltun, M., Gukhman, G. and Gavrilina, A. (1994), Stable selective coating 'black nickel' for solar collector surfaces, Solar Energy Materials and Solar Cells, Vol. 33 No. 1, pp.41-4.

DOI: 10.1016/0927-0248(94)90287-9

[11] Riffat, S.B. and Zhao, X. (2004), A novel hybrid heat pipe solar collector/CHP system. Part 1: system design and construction, Renewable Energy, Vol. 29 No. 15, pp.2217-33.

DOI: 10.1016/j.renene.2004.03.017

[12] Vasiliev, L.L. (2005), Heat pipes in modern heat exchangers, Applied Thermal Engineering, Vol. 25 No. 1, pp.1-19.

DOI: 10.1016/j.applthermaleng.2003.12.004