MATLAB: An Introduction with Applications, 6th Edition: An Introduction with Applications
MATLAB: An Introduction with Applications, 6th Edition: An Introduction with Applications
6th Edition
ISBN: 9781119385134
Author: Amos Gilat
Publisher: WILEY
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Chapter 7, Problem 10P

The relative humidity, RH, at sea level can be calculated from measured values of the dry-bulb temperature, Tdb, and the wet-bulb temperature Twb by (temperatures in degrees Celsius):

R H = V P S V P 100

where VP is the vapor pressure given by: VP

V P = e 16.78 T w b 116.9 T w b + 237.3

0.066858 ( 1 + 0.00115 T w b ) ( T d b T w b ) and

SVP is the saturated vapor pressure given by:

S V P = e 16.78 T w b 116.9 T w b + 237.3

Write a user-defined function for calculating RH for given Tdband Twb. For the function name and arguments, use RH = RelHum(Tdb,Twb). The input arguments are Tdb and Twb are the dry-bulb and wet-buld temperatures, respectively in °F. The output argument RH is the relative humidity in percent (rounded to the nearest integer). Inside the user-defined function use a subfunction. or an anonymous function to convert the unit of the temperature from Cesius to Fahrenheit. Use the function to determine the relative humidity for the following conditions:

(a) Tdb=75°F, Twb=69°F. (b) Tdb=93°F, Twb=90°F.

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Chapter 7 Solutions

MATLAB: An Introduction with Applications, 6th Edition: An Introduction with Applications

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