Question 3: An electronic device with a temperature of 84°C (shown in golden colour) isembedded inside a composite plastic tube which is equipped with three fins (shown in blue)to enhance the convective heat transfer with the surrounding air. The composite tube is heldhorizontally. The temperature drop along the fins can be ignored due to their high thermalconductivity. The outer ring of the fins (shown in brown) is insulated. The ambienttemperature is 20°C.3a. Draw the thermal resistance circuit of the system3b. Derive the energy balance of the system3c. Find the thermo-physical properties of the air and aluminiumAluminium finsDiameter = 30 cmInsulated ringThickness = 5 mmComposite tubeThickness = 5 mmThermal conductivity 25 W/mKTube is held horizontally.Air20°CHot electronic deviceTemperature = 84°CDiameter = 10 cmLength = 100 cm

Composites pipes are used in electrical insulations. Fiber-reinforced plastics (FRP),…

Answered: Question 3: An electronic device with a…

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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