A stream of 50 m3/min of outdoor air at 27°C dry-bulb temperature and 30%RH is adiabatically mixed with 100 m3/min of recirculated air at 43°C dry-bulb temperature and 38°C. Find the psychrometric properties of the resulting mixture. Then if this mixture is passed through a 15 m2 tunnel to mix again with 75 m3/min 15°C/10°C air stream what would be the resulting American effective temperature, work efficiency and comment on the possible dangers on human health if any.

A stream of 50 m3/min of outdoor air at 27°C dry-bulb temperature and 30%RH is adiabatically mixed with 100 m3/min of recirculated air at 43°C dry-bulb temperature and 38°C. Find the psychrometric properties of the resulting mixture. Then if this mixture is passed through a 15 m2 tunnel to mix again with 75 m3/min 15°C/10°C air stream what would be the resulting American effective temperature, work efficiency and comment on the possible dangers on human health if any.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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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

A stream of 50 m3/min of outdoor air at 27°C dry-bulb temperature and 30%RH is adiabatically mixed with 100
m3/min of recirculated air at 43°C dry-bulb temperature and 38°C. Find the psychrometric properties of the
resulting mixture. Then if this mixture is passed through a 15 m2 tunnel to mix again with 75 m3/min 15°C/10°C
air stream what would be the resulting American effective temperature, work efficiency and comment on the
possible dangers on human health if any.

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