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Q3) The forming section of a plastics plant puts out a continuous sheet of m wide and 2 mm thick at a rate of 15 m/min. The temperature of the pla when it is exposed to the surrounding air, and the sheet is subjected to air velocity of 3 m/s on both sides along its surfaces normal to the direction sheet. The width of the air cooling section is such that a fixed point on passes through that section in 2 s. Determine the rate of heat transfer Air 30°C, 3 ms

Q3) The forming section of a plastics plant puts out a continuous sheet of m wide and 2 mm thick at a rate of 15 m/min. The temperature of the pla when it is exposed to the surrounding air, and the sheet is subjected to air velocity of 3 m/s on both sides along its surfaces normal to the direction sheet. The width of the air cooling section is such that a fixed point on passes through that section in 2 s. Determine the rate of heat transfer Air 30°C, 3 ms

Elements Of Electromagnetics
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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Heat transfer
Q3) The forming section of a plastics plant puts out a continuous sheet of plastic that is 1.2 m wide and 2 mm thick at a rate of 15 m/min. The temperature of the plastic sheet is 90°C when it is exposed to the surrounding air, and the sheet is subjected to air flow at 30°C at a velocity of 3 m/s on both sides along its surfaces normal to the direction of motion of the sheet. The width of the air cooling section is such that a fixed point on the plastic sheet passes through that section in 2 s. Determine the rate of heat transfer 30C, 3 ms from the plastic sheet to the air. Plastic sheet 15 mimin
Transcribed Image Text:Q3) The forming section of a plastics plant puts out a continuous sheet of plastic that is 1.2 m wide and 2 mm thick at a rate of 15 m/min. The temperature of the plastic sheet is 90°C when it is exposed to the surrounding air, and the sheet is subjected to air flow at 30°C at a velocity of 3 m/s on both sides along its surfaces normal to the direction of motion of the sheet. The width of the air cooling section is such that a fixed point on the plastic sheet passes through that section in 2 s. Determine the rate of heat transfer 30C, 3 ms from the plastic sheet to the air. Plastic sheet 15 mimin
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