Concentric tube heat exchanger

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Reference no: EM13946450

A counterflow, concentric tube heat exchanger is used to cool the lubricating oil for a large industrial gas turbine engine. The flow rate of cooling water through the inner tube (Di 25 mm) is 0.2 kg/s, while the flow rate of oil through the outer annulus (Do 45 mm) is 0.1 kg/s. The oil and water enter at temperatures of 100 and 30°C, respectively. How long must the tube be made if the outlet temperature of the oil is to be 60°C?

Reference no: EM13946450

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