CALCOLO MICROCLIMATICO ONLINE ISO 11079

CALCULATION OF REQUIRED INSULATION, IREQ AND
DURATION LIMITED EXPOSURE, Dlim

M (W/m2), Produzione di energia metabolica (58 to 400 W/m2)
W (W/m2), Rate of mechanical work, (normally 0)
Ta (C), Ambient air temperature (< +10 C)
Tr (C), Mean radiant temperature (often close to ambient air temperature)
p (l/m2s), Air permeability (low < 5, medium 50, high > 100 l/m2s)
w (m/s), Walking speed (or calculated work created air movements)
v (m/s), Relative air velocity (0.4 to 18 m/s)
rh (%), Relative humidity
Icl (clo), AVAILABLE basic clothing insulation (1 clo = 0.155 W/m2K)

IREQ & Dlim RESULTS (minimal to neutral)

Insulation Required, IREQ to (clo)

CALCULATION OF REQUIRED RECOVERY TIME, RT

M (W/m2), Metabolic energy production, (normally lower!)
W (W/m2), Rate of mechanical work, (normally 0)
Ta (C), Ambient air temperature, (normally warmer!)
Tr (C), Mean radiant temperature, (normally warmer!)
p (l/m2s), Air permeability
w (m/s), Walking speed (normally lower)
v (m/s), Relative air velocity (normally lower!)
rh (%), Relative humidity
Icl (clo), Available basic clothing insulation, (normally lower!)

RT RESULTS (neutral)

CALCULATION OF WINDCHILL TEMPERATURE, twc

v (km/h), Meteorological wind speed (at 10 m)
Ta (C), Ambient air temperature

Wind chill temperature, twc (C)