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Engineering and Tech / Fundamentals of Thermodynamcs 8 / Chapter 3 / Problem 193HP

Fundamentals of Thermodynamcs | 8th Edition | ISBN: 9781118131992 | Authors: Claus Borgnakke, Richard E. Sonntag

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A computer in a closed room of volume 200 m3 dissipates

Chapter 3, Problem 193HP

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QUESTION:

Problem 193HP

A computer in a closed room of volume 200 m3 dissipates energy at a rate of 10 kW. The room has 50 kg of wood, 25 kg of steel, and air, with all material at 300 K and 100 kPa. Assuming all the mass heats up uniformly, how long will it take to increase the temperature 10°C?

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QUESTION:

Problem 193HP

A computer in a closed room of volume 200 m3 dissipates energy at a rate of 10 kW. The room has 50 kg of wood, 25 kg of steel, and air, with all material at 300 K and 100 kPa. Assuming all the mass heats up uniformly, how long will it take to increase the temperature 10°C?

ANSWER:

Solution 193 HP

Step 1 of 5

For a computer in a closed room with three materials air, wood, and steel, dissipates energy, and the materials are heated uniformly, so we need to find the time taken to increase the temperature of $1{0}^{\circ{}}C$ while heating.

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