A resistance heater is to raise the air temperature in the room (dimensions 4 m x 5 m x 6 m) from 5°C to 25°C within 11 min. Calculate the required power of the resistance heater. 4x5x6 m 5°C AIR We Assume that air is an ideal gas and the room is air-tight (no air can leak out or into the room). The initial pressure of the air is 100 kPa. The gas constant of air is R = 0.287 kPa m³/(kg K). Also, cv = 0.718 kJ/(kg K) for air at room temperature (assume the specific heat is constant in the considered range of temperatures).
A resistance heater is to raise the air temperature in the room (dimensions 4 m x 5 m x 6 m) from 5°C to 25°C within 11 min. Calculate the required power of the resistance heater. 4x5x6 m 5°C AIR We Assume that air is an ideal gas and the room is air-tight (no air can leak out or into the room). The initial pressure of the air is 100 kPa. The gas constant of air is R = 0.287 kPa m³/(kg K). Also, cv = 0.718 kJ/(kg K) for air at room temperature (assume the specific heat is constant in the considered range of temperatures).
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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![A resistance heater is to raise the air temperature in the room (dimensions 4 m x 5 m x 6 m) from 5°C
to 25°C within 11 min. Calculate the required power of the resistance heater.
4x5x6 m³
5°C
AIR
We
Assume that air is an ideal gas and the room is air-tight (no air can leak out or into the room). The
initial pressure of the air is 100 kPa.
The gas constant of air is R = 0.287 kPa m³/(kg K). Also, cy = 0.718 kJ/(kg K) for air at room
temperature (assume the specific heat is constant in the considered range of temperatures).](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0e295ca1-3ac7-4919-a84b-8033cf084738%2Fa645a61e-461d-45cf-84f9-516a324f24cb%2Fvf64zc_processed.png&w=3840&q=75)
Transcribed Image Text:A resistance heater is to raise the air temperature in the room (dimensions 4 m x 5 m x 6 m) from 5°C
to 25°C within 11 min. Calculate the required power of the resistance heater.
4x5x6 m³
5°C
AIR
We
Assume that air is an ideal gas and the room is air-tight (no air can leak out or into the room). The
initial pressure of the air is 100 kPa.
The gas constant of air is R = 0.287 kPa m³/(kg K). Also, cy = 0.718 kJ/(kg K) for air at room
temperature (assume the specific heat is constant in the considered range of temperatures).
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