Compute for:a. ΔT between the ambient and lecture roomb. ΔW between the ambient and lecture roomc. ΔT between the inlet and outlet of dryerd. ΔW between the inlet and outlet of dryer W, kgh,v,Locations of airTab, °CIwb, °CRH, % H2O/kg dry kJ/kg dry m³/kg dryairairairAmbient air3228740.022589.540.89Conditioned air252063.50.012957.250.86Air at the dryer inlet30230.550.015680.88Air at the dryer outlet33270.630.02084.80.89

Given: Locations of air Tdb, °C Twb, °C Ambient air 32 28 Conditioned air 25…

Answered: Compute for: a. ΔT between the…

Compute for: a. ΔT between the ambient and lecture room b. ΔW between the ambient and lecture room c. ΔT between the inlet and outlet of dryer d. ΔW between the inlet and outlet of dryer

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter50: Commercial, Packaged Rooftop, Variable Refrigerant Flow, And Variable Air Volume Systems

Section: Chapter Questions

Problem 3RQ: Mixed air is best described as the combination of A. exhaust air and return air. B. return air and...

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Concept explainers

Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.

Question

Compute for:
a. ΔT between the ambient and lecture room
b. ΔW between the ambient and lecture room
c. ΔT between the inlet and outlet of dryer
d. ΔW between the inlet and outlet of dryer

W, kg
h,
v,
Locations of air
Tab, °C
Iwb, °C
RH, % H2O/kg dry kJ/kg dry m³/kg dry
air
air
air
Ambient air
32
28
74
0.0225
89.54
0.89
Conditioned air
25
20
63.5
0.0129
57.25
0.86
Air at the dryer inlet
30
23
0.55
0.015
68
0.88
Air at the dryer outlet
33
27
0.63
0.020
84.8
0.89

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