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Which of the two configurations below must be used by the company for efficient operation? Please explain why by calculating the heat loss per configuration.

Which of the two configurations below must be used by the company for efficient operation? Please explain why by calculating the heat loss per configuration.

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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Which of the two configurations below must be used by the company for efficient operation?
Please explain why by calculating the heat loss per configuration. 

6.5 m 6.5 m 6.5 m The two configurations above both have a wall thickness of 700 mm, and a length of 21 m. For both configurations, the temperature inside is 500 °C and the temperature outside is 50 °C. Which of the two configurations above should a company use if it plans on using a fire clay brick refractory with k = 1.64 W/m. °C? Explain your choice. Hint: (9) A long cylindrical layer (10) A square flow passage (a) For a/b> 1.4, S= 2xL In (D₂/D₁) 2xL S= 0.93 In (0.948 a/b) (b) For a/b < 1.41, 2xL S= 0.785 In (a/b)
Transcribed Image Text:6.5 m 6.5 m 6.5 m The two configurations above both have a wall thickness of 700 mm, and a length of 21 m. For both configurations, the temperature inside is 500 °C and the temperature outside is 50 °C. Which of the two configurations above should a company use if it plans on using a fire clay brick refractory with k = 1.64 W/m. °C? Explain your choice. Hint: (9) A long cylindrical layer (10) A square flow passage (a) For a/b> 1.4, S= 2xL In (D₂/D₁) 2xL S= 0.93 In (0.948 a/b) (b) For a/b < 1.41, 2xL S= 0.785 In (a/b)
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