Effect of using phase change materials in protective clothing on human thermal comfort under extreme cold conditions

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Abstract

Providing the human thermal comfort, because of its impact on productivity and health is very important. This can be more challenging under extreme cold conditions and when the human body cannot adapt itself to the environment by using the physiological thermoregulatory mechanisms. Under these conditions, using protective clothing is one of the effective ways to protect the human body against the thermal injuries. In this study, the performance of protective clothing with a Phase Change Material (PCM) layer has been analysed by simultaneous modeling of physical and physiological mechanisms of the human under extreme cold conditions. For this purpose, multi-layer protective clothing with a PCM layer has been considered and its thermal performance has been investigated for two different arrangements of the layers. The results show that the middle layer of protective clothing is the best position for implementing the PCM layer and the best melting temperature for the mentioned PCM is about 10˚C. Also, using the PCMs in protective clothing can increase the thermal tolerating time from 4000 seconds up to 6000 seconds under extreme cold conditions.

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References

[1]  Mondal S (2008) Phase change materials for smart textiles–An overview. Appl Therm Eng 28(11-12): 1536-1550.
[2]  Shim H (2001) The use of phase change materials in clothing. Text Res J 71(6): 495-502.
[3]  Pause B (2000) Textiles with improved thermal capabilities through the application of phase change material (PCM) microcapsules. Melliand Text 81(9): 753-754.
[4] Nilsson HO, Anttonen H, Holm R (2000) New algorithms for prediction of wind effects on cold protective clothing. Proceedings of NOKOBETEF 6, 1 st ECPC, Norra Latin, Stockholm, Sweden pp. 17-20.
[5] Holmer I, Nilsson HO, Anttonen H (2001) Prediction of wind effects on cold protective clothing. RTO HFM Symposium on "Blowing Hot and Cold: Protecting Against Climatic Extremes" MP-076.
[6] He B, Setterwall F (2002) Technical grade paraffin waxes as phase change materials for cool thermal storage and cool storage systems capital cost estimation.         Energy Convers Manage 43(13): 1709-1723.
[7] Harriet M, Mari H (2004) The influence of sweating on the heat transmission properties of cold protective clothing studied with a sweating thermal manikin. International Journal of Occupational Safety and Ergonomics (JOSE) 10(3): 263-269.
[8] Wang SX, Li Y, Tokura H, Hu JY, Han YX, Kwok YL, Au RW (2008) Effect of moisture management on functional performance of cold protective clothing. Text Res J 77(12): 968-980.
[9] Lawson R, Mell E (2010) A heat transfer model for firefighter’s protective clothing, continued development in protective clothing modeling. Fire Technol 46: 833-841.
[10] Gagge AP, Stolwijk JAJ, Nishi Y (1971) An effective temperature scale based on a simple model of human physiological regulatory response. ASHRAE Trans 77:247-262.
[11] Wang SX, Li Y, Hu JY, Hiromi T, Song QW (2006) Effect of phase-change material on energy consumption of intelligent thermal-protective clothing. Polym Test 25: 580-587.
[12] Cabeza LF, Castell A, Barreneche C, Gracia A, Fernandez AI (2011) Materials used as PCM in thermal energy storage in buildings, A review. Renewable Sustainable Energy Rev 15: 1675-1695.
[13] Halford CK, Boehm RF (2007) Modeling of phase change material peak load shifting. Energy Build 39: 298-305. 
[14] صلحی م (1392) تحلیل عملکرد حرارتی مواد تغییر فاز دهنده به عنوان عایق در جدار خارجی ساختمان. پایان­نامه مقطع کارشناسی ارشد، دانشگاه بیرجند، بیرجند.
[15] Wang SX, Li Y, Hu JY, Hiromi T, Song QW (2006) Effect of phase-change material on energy consumption of intelligent thermal-protective clothing. Polym Test 25: 580-587.
[16]  Morgan D,  Baskett R (1974) Comfort of man in the city. An energy balance model of man – environment coupling. Int J Biometeorol 18(3): 184-198.
[17] معرفت م، امیدوار ا (1387) آسایش حرارتی. انتشارات کلید آموزش، تهران.
[18] ASHRAE (2001) Handbook-fundamentals. Atlanta: American Society of Heating, Refrigeration and Air-Conditioning Engineers.
[19]­ Tian Y, Zhao CY (2011) A numerical investigation of heat transfer in phase change materials (PCMs) embedded in porous metals. Energy 36: 5539-5546.
Journal of Solid and Fluid Mechanics
Volume 7, Issue 4
January 2018
Pages 239-249

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