=8. A room is initially at the outdoor temperature of 25°C. Now a large fan that consumes 200W of electricity when running is turned on. The heat transfer rate between the room and theoutdoor air is given as QUA(TI- To) where U = 6 W/m2 °C is the overall heat transfercoefficient, A= 30 m² is the exposed surface area of the room, and T₁ and To are the indoor andoutdoor air temperatures, respectively. Determine the indoor air temperature when steadyoperating conditions are established.Fan

Answered: Image /qna-images/answer/6c801d5f-b3cf-427b-9b68-a6624f95dccb.jpg

Answered: 8. A room is initially at the outdoor…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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At 7 pm on a Wednesday evening. Mr Huxley's water tank was full. The capacity of the tank was 3 000 litres. Unfortunately, the tap on the tank was leaking in such a way that the change in volume at any time (r) hours was proportional to the volume (V) of the tank. This means that AP =-kV . dt Show that V= Ve is a solution of this equation. Given that the volume of the tank after 3 hours is 1900 litres, show that k = 0.1523 correct to 4 decimal places. (iii) By the time Mr Huxley discovered that the tank was leaking, there were only 250 litres of water remaining. At what time and on which day did Mr Huxley discover the leak (Answer correct to the nearest minute)?
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