A	radiation surface, m2;
C	heat exchange on the skin by convection, W/m2;
CT	core temperature, K;
CTE	coefficient of thermal expansion, -;
CVCM	collected volatile condensable material in cosmic space, -;
h	convection coefficient, W/(m2K);
K	heat exchange on the skin by conduction, W/m2;
L	user’s height, m;
M	metabolic rate, W/m2;
Mb	user’s body weight, kg;
P	heat exchange on the skin by evaporation, W/m2;
Q	convective heat flux on the surface of the multilayer structure, W;
q	heat flux density of human heat loss, W/m2;
R	heat exchange on the skin by radiation, W/m2;
S	user’s skin surface, m2;
ri	radius of local curvature of the i-th layer of space suit, m;
Ta	surrounding/ambient temperature, K;
Ts	surface temperature, K;
Twi	surface temperature of the i-th layer of space suit, K;
TML	total mass loss in cosmic space, -;
V	heat exchange in the respiratory tract, W/m2;
ε	emissivity coefficient, -;
η	efficiency of converting thermal energy into work, -;
λi	thermal conductivity coefficient, W/(mK);
σ	Stefan–Boltzmann constant, 5.670367(13) × 10−8 W/(m2K4).