Sling Psychrometer Presentation

Sling Psychrometer Presentation
Mon. 2/23
Tues. 2/24 2­25­09
Wed. 2/25 Thur. 2/26 Fri. 2/27 Pd. 1 ­ Quiz Postponed
­ Barometers
­ Dew Point/Humidity
­ Sling Psychrometers
1
Sling Psychrometer Presentation
2­25­09
Humidity
2
Sling Psychrometer Presentation
2­25­09
Humidity
­ Defined as:
The amount of water vapor in the atmosphere at a given location on Earth's surface.
Two Common measures of Vapor in the Atmosphere:
­ Relative Humidity
­ Dew Point
3
Sling Psychrometer Presentation
2­25­09
Relative Humidity
Saturation­
How does the ability for air to hold water vapor change with temperature?
Relative Humidity­
4
Sling Psychrometer Presentation
2­25­09
How does the ability for air to hold water vapor change with temperature?
5
Sling Psychrometer Presentation
2­25­09
Dew Point
Is defined as:
Why do we use the term "DEW" Point?
If Dew Point is close to the air temperature then Relative Humidity would be....
6
Sling Psychrometer Presentation
2­25­09
Measuring Humidity
Sling Psychrometer
7
Sling Psychrometer Presentation
2­25­09
How it works...
If relative humidity is high, will much evaporation occur?
8
Sling Psychrometer Presentation
2­25­09
Dew Point Calculation Chart
9
Sling Psychrometer Presentation
2­25­09
10
Sling Psychrometer Presentation
2­25­09
11