A shell-and-tube heat exchanger must be designed to heat 25

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Reference no: EM13631636

A shell-and-tube heat exchanger must be designed to heat 2.5 kg/s of water from 15 to 85 oC. The heating is to be accomplished by passing hot engine oil, which is available at 160 oC, through the shell side of the exchanger. The oil is known to provide an average convection coefficient oh ho = 400 W/m2 *k on the outside of the tubes. Ten tubes pass the water throughthe shell. Each tube is thin walled, of diamter D = 25mm, and makes eight passes through the shell. If the oil leaves the exchanger at 100 oC, what is its flow rate? How long must the tubes be to accomplish the desired heating?

Reference no: EM13631636

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