Question: You are working on pumping a product through a 6 m pipe that has an inner diameter of 3 6 mm , a wall thickness

You are working on pumping a product through a 6 m pipe that has an inner diameter of 36 mm, a wall thickness of 5 mm, and thermal conductivity of 55 W/mC. Your product is a food material that is moving in a fully developed flow with a constant pipe surface temperature. The food has a density of 1234 kg/m3, viscosity of 18 Pas, thermal conductivity of 0.65 W/mC, it is moving at an average velocity of 12 m/s and an average temperature of 80C. You have already determined that the convective heat transfer coefficient outside of the pipe surface is 7.3 W/m2C in a room that is 30C. Determine the overall heat transfer coefficient based on the outside area of the pipe. Then, determine the total energy cost for the heat lost to the air over a one- year period, assuming 365-day operation, 24 hours/day, assuming that the energy cost is $0.48/kWh

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