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3 cards from this section. Quick, good the night before a test.
What is the definition of moist air?
Think about the components that make air 'moist'.
What does DBT stand for?
What kind of temperature do we typically measure?
What does DBT measure?
Think about what you would measure with a regular thermometer.
True or False: The wet-bulb temperature cannot be higher than the dry-bulb temperature.
Consider what happens when air is humid.
A room measures 25°C DBT with a WBT of 20°C. What is the relative humidity, and what happens if the temperature drops to 15°C?
Check the saturation pressure tables for water vapor at the temperature.
Determining the moisture content in air requires measuring pressures. If the dry air pressure is 100 kPa and water vapor is 12 kPa, what is the Humidity Ratio?
Use the relationship between water vapor and dry air pressures.
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