In a TEMA – E type shell-and-tube exchanger, as shown in the schematic diagram, water enters the shell at 218 °C at a rate of 1.4 kg/s. Engine oil flows through the tubes at a rate of 1.0 kg/s. The inlet and outlet temperatures of the oil are 150 °C and 90 °C, respectively. Determine the surface area of the exchanger by both the LMTD and E-NTU methods if U = 225W / (m ^ 2) * K The specific heats of water and oil are 4.19 and 1.67 J/g K respectively.

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Distilled water at a flow rate of 80,000 kg/hr enters an exchanger at 35C and leaves at 25C. The heat will be transferred to 140,000 kg/hr of raw water coming from a supply at 20C. Distilled water is at the shell side and raw water is at the tube side. It is a 1-Pass shell & tube heat exchanger. Shell diameter is 15.25 inch Baffle space = 12 inch Tube OD is 0.75�½, 1�½ square pitch, thickness = 1.245 mm Fluid properties are: Calculate the length of this heat exchanger. Assume no fouling

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in progress 0 5 months 1 Answer Reply 15 views