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Midterm HVAC Design
| Question | Answer |
|---|---|
| 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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