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Air moisture contents
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∙ 13y ago
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The difference between wet-bulb and dry-bulb temperature is called?
wet-buld depression
What is a wet-bulb depression?
The wet-bulb depression (WBD) is the difference in temperature between the ambient air temperature (Ta) and the wet-bulb temperature (Tw), ie: WBD = (Ta-Tw), and is associated with the maximum possible lowering of air temperature (hence, the word "depression") that's possible by evaporation of water vapor into the air up to the 100% relative humidity point.
When wet bulb temperature and dry bulb temperature are equal?
for air water system wet bulb equals to dry bulb at 100 % relative humidity for that given temperature of air.
What instrument do you use to measure dry bulb and wet bulb temperature?
You use a Hygrometer.
What would happen if a wet bulb had the same temperature as a dry bulb?
That means that there is 100% humidity. Normally evaporation from the wet bulb keeps its temperature lower than the dry bulb. At 100% humidity, there would be no evaporation, so they would show the same temperature.
What is the wet bulb depression if the dry bulb is 20 and the wet bulb is 17?
15
What is the wet-bulb depression if the dry bulb is 20 and the wet bulb is 17?
15
The difference between wet-bulb and dry-bulb temperature is called?
wet-buld depression
What is atmospheric depression?
it is difference between wet bulb temperature and dry bulb temperature.
What is a wet-bulb depression?
The wet-bulb depression (WBD) is the difference in temperature between the ambient air temperature (Ta) and the wet-bulb temperature (Tw), ie: WBD = (Ta-Tw), and is associated with the maximum possible lowering of air temperature (hence, the word "depression") that's possible by evaporation of water vapor into the air up to the 100% relative humidity point.
How to infer the conditions of air if there is no wet bulb depression?
easy, just count to 3!
Will the relative humidity be high if the wet-bulb depression increases?
no. it will actually decrease normally.
Is The wet bulb thermometer reading is always higher than the dry bulb?
No, the wet bulb is always lower. Evaporation from the wet bulb reduces its temperature.
Is the wet bulb thermometer reading always higher than the dry bulb?
No, the wet bulb is always lower. Evaporation from the wet bulb reduces its temperature.
Is the wet bulb thermometer reading always higher than a dry bulb reading?
No, the wet bulb is always lower. Evaporation from the wet bulb reduces its temperature.
How does a wetdry bulb work?
The thermometers are the same, one's bulb is covered in thin cloth called a muslin. The muslin is connected to a water reservoir, and water "wicks" up the muslin, evaporates, and cools the thermometer. So the wet is always (or should be) lower than the dry bulb temp. From the difference (called the wet bulb depression) you can calculate dew point and relative humidity, from printed tables. If the air is dry the depression will be higher (as there is more cooling) while the temps will be close together if the air is moist.
What main parts are to make a psychrometer?
The two parts of a psychrometer is the dry-bulb thermometer and the wet-bulb thermometer.
