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comf (version 0.1.12)

calcRT: Required recovery time

Description

Function to calculate Required recovery time, RT in hours.

Usage

calcRT(M,W,ta,tr,p,w,v,rh,clo)

Value

returns required recovery time in [hours]

Arguments

M

a numeric value presenting metabolic energy production (58 to 400 W/m2) in [W/m2]

W

a numeric value presenting Rate of mechanical work, (normally 0) in [W/m2]

ta

a numeric value presenting ambiant air temperature in [degree C]

tr

a numeric value presenting mean radiant temperature in [degree C]

p

a numeric value presenting air permeability (low < 5, medium 50, high > 100 l/m2s) in [l/m2s]

w

a numeric value presenting walking speed (or calculated work created air movements) in [m/s]

v

a numeric value presenting relative air velocity(0.4 to 18 m/s) in [m/s]

rh

a numeric value presenting relative humidity [%]

clo

a numeric value presenting clothing insulation level in [clo]

Author

Developed by Ingvar Holmer and Hakan O. Nilsson, 1990 in java and transferred to R by Shoaib Sarwar. Further contribution by Marcel Schweiker.

References

ISO 11079, 2007-12-15, ERGONOMICS OF THE THERMAL ENVIRONMENT - DETERMINATION AND INTERPRETATION OF COLD STRESS WHEN USING REQUIRED CLOTHING INSULATION (IREQ) AND LOCAL COOLING EFFECTS

Examples

Run this code
calcRT(90,0,25,25,8,0.2,0.4,50,1.5)

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