4.6 Heat Absorbed by Paraffinic PCM Materials
115
for a lower value of total heat absorbed at 75 kph by PCM non-woven material. In
order to obtain maximum benefit for heat absorption, the temperature range should
be inclusive of the melting point or very close to the melting point. However, in
reality this depends on the thermal conditions encountered by the motorcyclist.
4.7 Conclusions
This chapter has discussed the results obtained from experiments conducted in the
wind tunnel. The cooling curves of aluminum head without helmet at different speeds
are discussed. The comparisons of PWAT materials at different speeds are also
included. In addition, the comparisons of PCM materials at different speeds are
also included. The amount of heat absorbed by the sustainable textile materials to
cool the helmet is also included in this chapter.
References
1. K.M.D. Kerslake, The Stress of Hot Environments (Cambridge University Press, 1972)
2. X. Liu, I. Holmer, Evaluation of evaporative heat transfer characteristics of helmets. Appl. Hum.
Sci. 16(3), 107–113 (1997)
3. F.L. Tan, S.C. Fok, Cooling of helmet with phase change material. Appl. Thermal Eng. 26,
2067–2072 (2006)
4. Z.J. Kang, H. Xue, T.Y. Bong, Modeling of thermal environment and human response in a
crowed space for tropical climate. Build. Environ. 36, 511–525 (2001)
5. Private communication from J. Arthur, Product Manager, Thermal Analysis (PerkinElmer, March
2010)
6. Private communication from Dr. M/ Huson, Project Leader, Materials Science and Engineering
(CSIRO, Geelong, Victoria, March 2010)
7. K. Sinnappoo, R. Nayak, L. Thompson, R. Padhye, Application of sustainable phase change
materials in motorcycle helmet for heat-stress reduction. J. Text.E Inst, 1–9. https://doi.org/10.
1080/00405000.2020.1715606
115
for a lower value of total heat absorbed at 75 kph by PCM non-woven material. In
order to obtain maximum benefit for heat absorption, the temperature range should
be inclusive of the melting point or very close to the melting point. However, in
reality this depends on the thermal conditions encountered by the motorcyclist.
4.7 Conclusions
This chapter has discussed the results obtained from experiments conducted in the
wind tunnel. The cooling curves of aluminum head without helmet at different speeds
are discussed. The comparisons of PWAT materials at different speeds are also
included. In addition, the comparisons of PCM materials at different speeds are
also included. The amount of heat absorbed by the sustainable textile materials to
cool the helmet is also included in this chapter.
References
1. K.M.D. Kerslake, The Stress of Hot Environments (Cambridge University Press, 1972)
2. X. Liu, I. Holmer, Evaluation of evaporative heat transfer characteristics of helmets. Appl. Hum.
Sci. 16(3), 107–113 (1997)
3. F.L. Tan, S.C. Fok, Cooling of helmet with phase change material. Appl. Thermal Eng. 26,
2067–2072 (2006)
4. Z.J. Kang, H. Xue, T.Y. Bong, Modeling of thermal environment and human response in a
crowed space for tropical climate. Build. Environ. 36, 511–525 (2001)
5. Private communication from J. Arthur, Product Manager, Thermal Analysis (PerkinElmer, March
2010)
6. Private communication from Dr. M/ Huson, Project Leader, Materials Science and Engineering
(CSIRO, Geelong, Victoria, March 2010)
7. K. Sinnappoo, R. Nayak, L. Thompson, R. Padhye, Application of sustainable phase change
materials in motorcycle helmet for heat-stress reduction. J. Text.E Inst, 1–9. https://doi.org/10.
1080/00405000.2020.1715606