Question

Problem 3 A cold glass at 67°F is installed in a room in which the air temperature is maintained at 82°F. Determine the maximum relative humidity and humidity ratio for the room without causing condensation on the cold glass. Assume sea-level pressure. Solve this problem twice. Once using the mathematical equations and then using the psychrometric chart

          Problem 3
A cold glass at 67°F is installed in a room in which the air temperature is maintained at 82°F. Determine the
maximum relative humidity and humidity ratio for the room without causing condensation on the cold glass.
Assume sea-level pressure. Solve this problem twice. Once using the mathematical equations and then using
the psychrometric chart

Problem 3
A cold glass at 67°F is installed in a room in which the air temperature is maintained at 82°F. Determine the
maximum relative humidity and humidity ratio for the room without causing condensation on the cold glass.
Assume sea-level pressure. Solve this problem twice. Once using the mathematical equations and then using
the psychrometric chart

Added by Edward F.

Concepts of Physics 2 for IIT JEE

H C Verma Harish Chandra Verma 2nd Edition

Chapter 24

Instant Answer

Solved by Expert Umar Sohail Qureshi

Step 1

- Using the equation: es = 0.6108 * exp(17.27 * T / (T + 237.3)) - T = 82°F = 28.9°C - es = 0.6108 * exp(17.27 * 28.9 / (28.9 + 237.3)) - es = 0.6108 * exp(17.27 * 28.9 / 266.2) - es = 0.6108 * exp(4.708) - es = 0.6108 * 111.8 - es = 68.32 Pa Show more…

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Problem 3: A cold glass at 67Â°F is installed in a room in which the air temperature is maintained at 82Â°F. Determine the maximum relative humidity and humidity ratio for the room without causing condensation on the cold glass. Assume sea-level pressure. Solve this problem twice. Once using the mathematical equations and then using the psychrometric chart.