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Example 6.20. Estimate the heat transfer area for an exchanger to cool an organic liquid from 105°C to 50°C. The hot liquid will flow at a rate of 10000 kg/h and will be cooled by using circulating foul water containing some salt. The cooling water will leave at 40°C. It is proposed to use one shell pass and two tube pass exchanger for the above duty. Cooling water inlet temperature = 25°C Heat capacity of water = 4.2 kJ/kg °C Heat capacity of hot liquid = 2.84 kJ/kg °C Fr, the temperature correction for the design will be 0.85. The recommended overall heat transfer coefficient U will be 600 W/m² °C.

Example 6.20. Estimate the heat transfer area for an exchanger to cool an organic liquid from 105°C to 50°C. The hot liquid will flow at a rate of 10000 kg/h and will be cooled by using circulating foul water containing some salt. The cooling water will leave at 40°C. It is proposed to use one shell pass and two tube pass exchanger for the above duty. Cooling water inlet temperature = 25°C Heat capacity of water = 4.2 kJ/kg °C Heat capacity of hot liquid = 2.84 kJ/kg °C Fr, the temperature correction for the design will be 0.85. The recommended overall heat transfer coefficient U will be 600 W/m² °C.

Introduction to Chemical Engineering Thermodynamics
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
Section: Chapter Questions
Problem 1.1P
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Example 6.20. Estimate the heat transfer area for an exchanger to cool an organic liquid from 105°C to 50°C. The hot liquid will flow at a rate of 10000 kg/h and will be cooled by using circulating foul water containing some salt. The cooling water will leave at 40°C. It is proposed to use one shell pass and two tube pass exchanger for the above duty. Cooling water inlet temperature = 25°C Heat capacity of water = 4.2 kJ/kg °C Heat capacity of hot liquid = 2.84 kJ/kg °C F₁, the temperature correction for the design will be 0.85. The recommended overall heat transfer coefficient U will be 600 W/m² °C.
Transcribed Image Text:Example 6.20. Estimate the heat transfer area for an exchanger to cool an organic liquid from 105°C to 50°C. The hot liquid will flow at a rate of 10000 kg/h and will be cooled by using circulating foul water containing some salt. The cooling water will leave at 40°C. It is proposed to use one shell pass and two tube pass exchanger for the above duty. Cooling water inlet temperature = 25°C Heat capacity of water = 4.2 kJ/kg °C Heat capacity of hot liquid = 2.84 kJ/kg °C F₁, the temperature correction for the design will be 0.85. The recommended overall heat transfer coefficient U will be 600 W/m² °C.
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