Determine the following for a humid air stream at 1 atm if the enthalpy deviation is - 0.6 kJ/kg dry air and the wet bulb temperature is 30 °C. Use the attached psychrometric chart. a. What is the dry bulb temperature? b. What is the humid volume? c. What is the dew point temperature?
Determine the following for a humid air stream at 1 atm if the enthalpy deviation is - 0.6 kJ/kg dry air and the wet bulb temperature is 30 °C. Use the attached psychrometric chart. a. What is the dry bulb temperature? b. What is the humid volume? c. What is the dew point temperature?
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Transcribed Image Text:Determine the following for a humid air stream at 1 atm if the enthalpy deviation is -
0.6 kJ/kg dry air and the wet bulb temperature is 30 °C. Use the attached psychrometric chart.
a. What is the dry bulb temperature?
b. What is the humid volume?
c. What is the dew point temperature?
d. What is the absolute humidity?
e. What is the relative humidity?
f. What is the enthalpy for a saturated air stream?
g. What is the actual enthalpy?
h. How much water is in 40 kg (total) of this stream?
Transcribed Image Text:23
-10
-5
23
13
2
+0.2
0
+0.4
Wet Bulb or Saturation Temperature,
+0.6
+0.8
40
5
10
°C
Enthalpy At Saturation, kJ/kg Dry Air
60
45 50
SC
65
70 75 80 85
06
20
95
100
2
105
15
25
Dry Bulb Temperature, °C
30
35
Relative
0.85
Humid Volume, m³/kg Dry Air
20%
40
45
1
0.90
50
0.95
0.031
€0.030
0.029
0.028
0.027
0.026
0.025
0.024
0.023
0.022
0.021
-0.020
0.019
0.018
0.017
0.016
0.015
0.014
0.013
0.012
0.011
0.010
0.009
0.008
0.007
0.006
0.005
0.004
0.003
€0.002
0.001
0.00
55
Moisture Content, kg/kg Dry Air
10
0.75
0.80
Below 0°C Properties and Enthalpy Deviation Lines Are For Ice
FIGURE 8.4-1 Psychrometric chart-SI units. Reference states: H₂O (liquid, 0°C, 1 atm), dry air (0°C, 1 atm). (Data obtained from Carrier Corporation.)
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