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Midterm HVAC Design

Comfort involves four things: 1) temperature 2)humidity 3) air 4)air cleanliness
The body gives off and absorbs heat by four methods of heat transfer 1)conduction 2)convection 3)radiation 4)Evaporation of perspiration
1)Guideline for Comfort: Winter 1)temperature can be offset with higher humidity 2)the lower the humidity is, the higher the temperature must be 3)Air movement is more noticeable
2)Guideline for Comfort: Summer 1)When the humidity is high, air movement helps. 2)Higher temperatures can be offset with lower humidity
3)Guideline for Comfort The comfort conditions in winter and in summer are different
4)Guideline for comfort Styles of clothers in different parts of the country make a slight difference in the conditional space temperature requirement for comfort.
Psychrometric charts 1)Dry-bulb temperature 2)wet-bulb temperature 3)Relative humidity 4)Specific Volume 5)Moisture content 6)Heat content
psychrometrics the study of air and its properties
Created by: toolegit
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