A shell-and-tube heat exchanger must be designed to heat 2.5 kg/s of water from 15 to 85C.
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A shell-and-tube heat exchanger must be designed to heat 2.5 kg/s of water from 15 to 85°C. The heating is to be accomplished by passing hot engine oil, which is available at 160°C, through the shell side of the exchanger. The oil is known to provide an average convection coefficient of ho = 400 W/m2 ∙ K on the outside of the tubes. Ten tubes pass the water through the shell. Each tube is thin walled of diameter D = 25 mm. and makes eight passes through the shell. If the oil leaves the exchanger at 100°C, what is its flow rate? How long must the tubes be to accomplish the desired heating?
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Related Book For
Fundamentals of Heat and Mass Transfer
ISBN: 978-0471457282
6th Edition
Authors: Incropera, Dewitt, Bergman, Lavine
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