Abstract
In recent years, air ventilation garments (AVG) have been reported effective to improve thermal comfort. In this study, an AVG incorporated with small fans was investigated on torso thermal comfort in moderate environment (Ta=25 °C, RH=50 %). Eight female subjects walked on the treadmill at a speed of 4 km·h−1 for 30 min and then rested for another 30 min. During the whole test protocol, the AVG was worn in three conditions of flow rates to examine which flow rate was the best choice to keep thermal comfort: fans off with no air ventilation (a controlled condition, CON), low flow rate (12 l/s, LOW) and high flow rate (20 l/s, HIGH). Results showed that HIGH made significantly lowered local skin temperature of the abdomen, scapula and the lower back (p<0.05). The mean torso skin temperature in CON, LOW and HIGH in the last 5 min in the exercising stage was 32.3, 30.2 and 29.2 °C, respectively and it was 32.1, 29.5 and 28.2 °C, respectively in the resting stage. HIGH significantly mitigated thermal sensation in the 40 and 50th min (p<0.05), whereas it produced cool and unpleasant thermal sensation in the resting stage. In the whole test scenario, LOW produced the best torso thermal comfort. The low flow rate of ventilation (12 l/s) should be recommend and used in such a moderate environment to maintain torso thermal comfort.
Similar content being viewed by others
References
G. Havenith, I. Holmér, and K. Parsons, Energy Build., 34, 581 (2002).
C. Cao, K. Kuklane, P. O. Ostergren, and T. Kjellstrom, Int. J. Biometeorol., 63, 195 (2019).
X. Xu, T. Endrusick, B. Laprise, W. Santee, and M. Kolka, Aviat Space. Envir. Md., 77, 644 (2006).
G. Bartkowiak, A. Dabrowska, and A. Marszalek, Appl. Ergon., 58, 182 (2017).
C. Brade, B. Dawson, K. Wallman, and T. Polglaze, J. Athl Training., 45, 164 (2010).
J. W. Choi, M. J. Kim, and J. Y. Lee, Ind. Health., 46, 620 (2008).
C. Gao, K. Kuklane, F. Wang, and I. Holmér, Indoor Air, 22, 523 (2012).
M. Zhao, C. Gao, F. Wang, K. Kuklane, I. Holmér, and J. Li, Text. Res. J., 83, 418 (2013).
C. L. Butts, C. R. Smith, M. S. Ganio, and B. P. McDermott, Appl. Ergon., 59, 42 (2017).
A. Hadid, R. Yanovich, T. Erlich, G. Khomenok, and D. S. Moran, Eur. J. Appl. Physiol., 104, 311 (2008).
T. Chinevere, B. Cadarette, D. Goodman, B. Ely, S. Cheuvront, and M. Sawka, Eur. J. Appl. Physiol., 103, 307 (2008).
X. Xu and J. Gonzalez, J. Appl. Physiol., 111, 3155 (2011).
M. Zhao, C. Gao, F. Wang, K. Kuklane, I. Holmér, and J. Li, Int J. Ind. Ergon., 43, 232 (2013).
M. Zhao, K. Kuklane, K. Lundgren, C. Gao, and F. Wang, Int. J. Occup. Saf. Ergon., 21, 457 (2015).
M. Zhao, C. Gao, J. Li, and F. Wang, Fiber. Polym., 16, 1403 (2015).
Y. Sun, W. J. Jasper, and E. A. DenHartog, J. Text. Sci. Eng., 5, 1000227 (2015).
Y. Sun and W. J. Jasper, Build. Environ., 93, 50 (2015).
W. Yi, Y. Zhao, and A. P. C. Chan, Int. J. Ind. Ergon., 58, 62 (2017).
Udayraj, Z. Li, Y. Ke, F. Wang, and B. Yang, Energy Build., 174, 439 (2018).
B. Choudhary, Udayraj, F. Wang, Y. Ke, and J. Yang, Int. J. Heat Mass Transfer, 147, 118973 (2020).
J. Yang, F. Wang, G. Song, R. Li, and U. Raj, Int. J. Occup. Saf. Ergon., doi: https://doi.org/10.1080/10803548.2020.1762316 (2020).
W. Song, F. Wang, and F. Wei, Build. Environ., 100, 92 (2016).
A. P. C. Chan, Y. Zhang, F. Wang, F. F. K. Wong, and D. W. M. Chan, J. Therm. Biol., 70, 21 (2017).
Y. Zhao, W. Yi, A. P. C. Chan, F. F. K. Wong, and M. C. H. Yam, Ann. Work Expos. Heal., 61, 883 (2017).
X. Wan, F. Wang, and Udayraj, Int. J. Heat Mass Transfer, 126, 636 (2018).
ISO 9920, Ergonomics of the Thermal Environment-Estimation of Thermal Insulation and Water Vapour Resistance of a Clothing Ensemble, International Standards Organization, 2007.
ISO 10551, Ergonomics of the Thermal Environment — Assessment of the Influence of the Thermal Environment Using Subjective Judgment Scales, International Standards Organization, 2002.
L. Y. Lin, F. Wang, K. Kuklane, C. Gao, I. Holmér, and M. Zhao, Appl. Ergon., 44, 321 (2013).
H. Yang, B. Gao, Y. Ju, and Y. Zhu, Energy Build., 198, 528 (2019).
M. Itani, D. Ouahrani, N. Ghaddar, K. Ghali, and W. Chakroun, Build. Environ., 107, 29 (2016).
M. Raccuglia, K. Pistak, S. G. Hodder, and G. Havenith, 6th International Conference of the Physiology and Pharmacology of Temperature Regulation, Ljubljana, Slovenia, 2016.
M. Raccuglia, K. Pistak, C. Heyde, J. Qu, N. Mao, S. Hodder, and G. Havenith, Text. Res. J., 88, 2155 (2017).
Y. Wang, Z. Lian, and L. Lan, Energy Build., 43, 2678 (2011).
Acknowledgements
The authors are grateful to the subjects for their participation in the study. This work was financially supported by the Natural Science Foundation of China (No. 51908349) and the open fund of Key Laboratory of Clothing Design and Technology (Donghua University), Ministry of Education, China (No. KLCDT2020-06).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Zhao, M., Wang, F., Gao, C. et al. The Effect of Flow Rate of a Short Sleeve Air Ventilation Garment on Torso Thermal Comfort in a Moderate Environment. Fibers Polym 23, 546–553 (2022). https://doi.org/10.1007/s12221-021-0545-5
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12221-021-0545-5