Indices Of Thermal Comfort

Up to now the application of outdoor thermal comfort otc indices is dominated by rational indices which evolved from linear equations to empirical indices and finally to human thermal models htms.

Indices of thermal comfort. Measurement of thermal comfort levels are complex and many indices have been proposed over the years. In wölki et al. Indices of thermal comfort thermal comfort refers to the subjective feeling of temperature in an environment.

Optimum levels of thermal comfort helps in maximizing productivity. Measurement of thermal comfort levels are complex and many indices have been proposed over the years. At less than 16 0 c discomfort due to.

It is based on the replacement of steady state energy balance model by two node energy balance model in transient conditions. 0 hi heat index 1 humidex humidity index 2 di discomfort index 3 wci wind chill index 4 wct wind chill temperature 5 wbgt wet bulb globe temperature indoors 6 wbgt wet bulb globe temperature outdoors 7 te effective temperature 8 at apparent temperature 9 ts thermal sensation 10 asv actual sensation vote 11 mrt mean radiant temperature 12 iclp predicted insulation index of clothing 13 hr heart rate 14. The thermal comfort zone is delimited by effective temperatures between 16 and 24 c relative air humidity from 40 to 60 and air speed of 0 7 m s 1.

Initially the air temperature as measured from a dry bulb thermometer was taken as the indicator of thermal comfort. Choose one of the comfort indices.