A furnace heating unit has an airflow of 2,500 CFM. The heating coil entering temperature is 35°F dry bulb temperature with a relative humidity of 30%. the furnace heating coil leaving temperature is 80°F dry bulb temperature. Plot the points and the process line on the psychrometric chart. Find the sensible, latent, and total loads of the coil. (hint: heating does not change the moisture content in the air)

A furnace heating unit has an airflow of 2,500 CFM. The heating coil entering temperature is 35°F dry bulb temperature with a relative humidity of 30%. the furnace heating coil leaving temperature is 80°F dry bulb temperature. Plot the points and the process line on the psychrometric chart. Find the sensible, latent, and total loads of the coil. (hint: heating does not change the moisture content in the air)

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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Question

A furnace heating unit has an airflow of 2,500 CFM. The heating coil entering temperature is 35°F dry
bulb temperature with a relative humidity of 30%. the furnace heating coil leaving temperature is
80°F dry bulb temperature. Plot the points and the process line on the psychrometric chart. Find the
sensible, latent, and total loads of the coil. (hint: heating does not change the moisture content in the
air)
OUTSIDE
AIR
2,500 CFM
35°F DRY BULB TEMP.
30% RELATIVE HUMIDITY
FURNACE
80°F DRY BULB TEMP.
2
SUPPLY
AIR

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Step 1: Given Data

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Step 2: Calculating the sensible heat of the coil

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Step 3: Calculating the Latent heat and total heat/ load of the coil

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