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please solve this question with clear steps , and fast thanks in advance Hot air flowing at a rate of 1.5m/s enters and exits a
please solve this question with clear steps , and fast thanks in advance
Hot air flowing at a rate of 1.5m/s enters and exits a piping system at 228.8C and 180C, respectively. The 2 -meter long straight piping system consists of a 1 -inch Schedule 80 steel tube (thermal conductivity, k=45W/m.K ). The average inner pipe wall temperature is measured as 190.6C. The straight steel pipe is located at an environment (convective heat transfer coefficient, h=15W/m2.K ) with an ambient temperature of 25C. For energy conservation and safety reason, an insulation layer (thickness =0.5cm; thermal conductivity of the insulating material =0.5 W/m.K) is added to the outer surface of the steel pipe. (a) Estimate the convective heat transfer coefficient of the hot air, hair inside the pipe using the empirical equations you have learned in this course. (6 Marks) (b) Calculate the quantity of heat (kilo Joule) that is lost to the surrounding in one hour from the piping system. It is mandatory to provide a properly labelled heat circuit diagram to support your solution. (14 Marks) (c) Determine the outer surface temperature of the piping system after the addition of the insulation layer. (4 marks) These-tables might be useful for answering the questions: A.5.1 Dimeneians of Standard Steel Pine A.3-3 Physical Properties of Air at 101.325kPa (1 A tm Abs), SI Units Step by Step Solution
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