Question 13.2: Determine the relative humidity when the temperature measure......

Engineering Thermodynamics [1393131]

Determine the relative humidity when the temperature measured using dry bulb thermometer is 50°F and 40°F measured by wet bulb thermometer. (AU, 2015)

Step-by-Step

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Step 1: By using psychrometric chart, take a look at horizontal axis to find 50°F.
Step 2: Move a pencil up this line to meet the intersection with the diagonal line for 40°F.
Step 3: Identify that this point falls just over half way between the lines of relative humidly for 60% and 70%. So, the relative humidity is 68%.

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