Thermal comfort Flashcards
How does ASHRAE describe human thermal comfort?
The state of mind that express satisfaction ruth the surrounding environment.
Which parameters are typically used to describe/assess thermal comfort in indoor
environments?
Thermal comfort is described by these components:
Air temperature, metabolism rate (MET), relative air humidity, CLO, air velocity, mean radiant temperature
Met stands for metabolic rate and describes activity level, causing internal heat gain.
1 MET = one person sitting still on a chair = 58 W/m^2 (energy generated from the human body)
Clo stands for clothing insulation / thermal insulation. It describes the amount of clothes the occupant is wearing and impacts the heat transport to and from the body.
1 CLO = “full suit” - pants, shirt and jacket = 0,155 Km^2/W
