Question

|Consider a counter flow heat exchanger application. A proprietary fluid made by company-X is aliquid that has to be cooled from 140°F to 80°F in a concentric (pipe in pipe)

counterflow heatexchanger. Cooling water enters the outer pipe at 50°F and leaves at 75°F. The overall heattransfer coefficient for this process is reported to be 238.8 Btu/(ft’ h °F). The proprietary fluidflows through the inner tube with a velocity of 5 ft/s. The inner pipe has an inside-diameter of0.745 inches and an outer-diameter that is 7/8 inches. The material of construction for the innerpipe is a metal with a very high thermal conductivity. Calculate the mass flow rate of water Calculate the Log Mean Temperature Difference |Calculate the convective heat transfer coefficient for the proprietary fluid in the tube Calculate the convective heat transfer coefficient for the water on the shell side Calculate the length in the inner pipe Calculate the NTU for this system Calculate the effectiveness for this system

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