Thermal Factors That Affect Human Comfort

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Introduction
There are many factors that affect human comfort in the internal built environment. Human comfort is affected by thermal factors; physical factors and personal factors. Another factor that can affect human comfort is sound of the environment around them. The final factor that affects the human comfort is the visual of the room and the light intensity. There are ways to measure the physical factors that affect human thermal comfort, the sound comfort and the visual comfort.

Thermal Factors

The average temperature inside a building is 19-21 degrees and outside is -1 degrees, but there are two different thermal factors that affect the temperature of the room and human comfort; they are physical and personal factors. The physical factors include; air temperature, mean radiation temperature, relative humidity and air velocity. The air temperature inside of a building will change depending on the temperature outside the building and the k-values of the materials used to build the walls and insulation. K-values are the values that all materials have which shows how good insulators the materials are, the lower the k-value the more affective the materials are at retaining heat. The u-value is what overall heat resistance of the materials are. Air temperature is also affected by the people inside the building and they activity they are doing. The mean radiant temperature also affects the human comfort; mean radiant temperature is the radiation that is coming into the
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