A stream of hydrocarbon (Cp= 2.2 kJ/kg.K) is cooled at a rate of 720 kg/hr from 150°C to 40°C in the tube side of a heat exchanger. Water enters the heat exchanger at 10°C at a rate of 540 kg/hr. The outside diameter of the inner tube is 2.5 cm and the length is 6.0m. Calculate the overall heat transfer coefficient and the rate of heat transfer if the following are used. a. parallel flow HE; b. counter- current flow HE; c. 1-2 shell and tube HE; d. assuming the heat exchanger in the problem employs a plate-finned matrix such that a single-pass cross flow arrangement is achieved where one of the fluids are unmixed.

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
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A stream of hydrocarbon (Cp= 2.2 kJ/kg.K) is cooled at a rate of 720 kg/hr from 150°C to 40°C in the tube side of a heat exchanger. Water enters the heat exchanger at 10°C at a rate of 540 kg/hr. The outside diameter of the inner tube is 2.5 cm and the length is 6.0m. Calculate the overall heat transfer coefficient and the rate of heat transfer if the following are used. a. parallel flow HE; b. counter- current flow HE; c. 1-2 shell and tube HE; d. assuming the heat exchanger in the problem employs a plate-finned matrix such that a single-pass cross flow arrangement is achieved where one of the fluids are unmixed.

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