TY - JOUR
T1 - Influences of Bladders and Phase Change Materials in Anti-G Suit on Pilots' Thermal Responses
AU - Yang Wang, Fengzhi Li, Yi Li, Hongtao Zhao & Zhisheng Luo 
JO - Journal of Fiber Bioengineering and Informatics
VL - 2
SP - 165
EP - 179
PY - 2014
DA - 2014/07
SN - 7
DO - http://doi.org/10.3993/jfbi06201404
UR - https://global-sci.org/intro/article_detail/jfbi/4775.html
KW - Bladder anti-G Garment
KW - PCM
KW - Human Thermoregulatory Model
KW - Thermal Stress
AB - A heat and humidity transfer model for the pilot wearing bladder anti-G garment system is developed.
In the model, an 85-node human thermoregulatory model is developed for predicting pilots' thermal
stresses and the coupled heat and humidity transfer equations including latent heat sorption/release of
the Phase Change Materials (PCM) are utilized for the garment. Meanwhile, the garment inner boundary
conditions are treated by considering the bladder effects. Also, the model is validated by comparing the
simulation with experimental results. After the validation, water vapour concentration and temperature
at different parts of garment and evaporation heat loss, dry heat loss and skin temperature at different
parts of body are predicted and compared to study the influences of bladder. Otherwise sweat rate, sweat
accumulation, mean skin temperature and comprehensive index of thermal stress under garments with
different volumetric fractions of PCM are also predicted and compared to study the influences of PCM.
The conclusion shows that bladders will produce more heat stress on wearers and PCM can improve the
thermal performance of the bladder anti-G garment.