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  3. 3 a cylindrical pipe with an internal diameter of 36...

Question: 3 a cylindrical pipe with an internal diameter of 36...

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3) A cylindrical pipe with an internal diameter of 36 mm, wall thickness of 2 mm and thermal conductivity of 14.2 W m1 K1, is insulated by a 10 mm layer of lagging with a conductivity of 0.050 W m K1. This system is used to transport a liquid at a temperature of 6°C with a convective heat transfer coefficient of 400 W m2 K1. The air surrounding the insulated pipe s at a temperature of 23°C and has a convective heat transfer coefficient of 6 W m2 K (a) Calculate the heat flux per metre of insulated pipe. You may use either the resistance method or the overall heat transfer coefficient (U) method. (4 marks) (b) Plot the temperature profile across both the 2 mm metal layer AND the 10 mm insulation layer on one continuous graph. You must use at least 4 data points for.cach lausr (4 marks)
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