0.1 kg/s of water is heated from an inlet temperature of 25 C by passing through...

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0.1 kg/s of water is heated from an inlet temperature of 25 C by passing through a thick-walled tube having an inner and outer radius of 10 mm and 25 mm, respectively. The outer surface of the tube is well insulated and the electrical heating within the thick-wall tube provides a uniform supply of electrical heat per unit volume of 1.5 106 W/m. a) If the length of the tube is 15 m, show that the heat transfer rate is approximately 15.9 kW and temperature of the water exiting the tube is approximately 63 C. b) Calculate the average mean temperature of the water at a length of 10 m. c) Estimate the convective heat transfer coefficient inside the tube in the fully developed regio 0.1 kg/s of water is heated from an inlet temperature of 25 C by passing through a thick-walled tube having an inner and outer radius of 10 mm and 25 mm, respectively. The outer surface of the tube is well insulated and the electrical heating within the thick-wall tube provides a uniform supply of electrical heat per unit volume of 1.5 106 W/m. a) If the length of the tube is 15 m, show that the heat transfer rate is approximately 15.9 kW and temperature of the water exiting the tube is approximately 63 C. b) Calculate the average mean temperature of the water at a length of 10 m. c) Estimate the convective heat transfer coefficient inside the tube in the fully developed regio