Concept explainers
An expression for the actual water vapor partial pressure in terms of wet-bulb and dry-bulb temperatures, referred to as the Carrier equation, is given as
where
- Using Carrier's equation, calculate the partial pressure of the water vapor in the free stream. What is the relative humidity?
- Refer to a psychrometric chart and obtain the relative humidity directly for the conditions indicated. Compare the result with part (a).
- Use Equation 6.65 to determine the relative humidity. Compare the result to parts (a) and (b).
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