[Er.Pankaj Garg]

Thermal comfort


Criteria for Thermal Comfort : 
Thermal comfort is that condition of surrounding thermal environment under which a person can maintain a body heat balance at normal body temperature without perceptible sweating. Thermal comfort is highly subjective and limits of comfort vary from person to person. Human thermal comfort is dependent on following factors :

The four environmental factors are:

• Dry bulb temperature
  
  
• Mean radiant temperature
  
  
• Relative Humidity
  
  
• Air Velocity
  

In addition to environmental factors there are two physiological factors that affect a person’s thermal comfort, which are

• Metabolic rate
  
  
• Clothing level
  
  
  

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