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5.3-8. Effect of Size on Heat-Processing Meat. An autoclave held at 121.1°C is being used to process sausage meat 101.6 mm in diameter and 0.61 m long which is originally at 21.1°C. After 2 h the temperature at the center is 98.9°C. If the diameter is increased to 139.7 mm, how long will it take for the center to reach 98.9°C? The heat transfer coefficient to the surface is h is very large so that the surface resistance can be considered negligible. (Show this.) Negléct the heat transfer from the ends of the cylinder. The thermal conductivity k = 1100 W/m² · K, which 0.485 W/m · K.

5.3-8. Effect of Size on Heat-Processing Meat. An autoclave held at 121.1°C is being used to process sausage meat 101.6 mm in diameter and 0.61 m long which is originally at 21.1°C. After 2 h the temperature at the center is 98.9°C. If the diameter is increased to 139.7 mm, how long will it take for the center to reach 98.9°C? The heat transfer coefficient to the surface is h is very large so that the surface resistance can be considered negligible. (Show this.) Negléct the heat transfer from the ends of the cylinder. The thermal conductivity k = 1100 W/m² · K, which 0.485 W/m · K.

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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5.3-8. Effect of Size on Heat-Processing Meat. An autoclave held at 121.1°C is being used to process sausage meat 101.6 mm in diameter and 0.61 m long which is originally at 21.1°C. After 2 h the temperature at the center is 98.9°C. If the diameter is increased to 139.7 mm, how long will it take for the center to reach 98.9°C? The heat transfer coefficient to the surface is h 1100 W/m2 · K, which is very large so that the surface resistance can be considered negligible. (Show this.) Neglect the heat transfer from the ends of the cylinder. The thermal conductivity k = 0.485 W/m · K. Ans. 3.78 h
Transcribed Image Text:5.3-8. Effect of Size on Heat-Processing Meat. An autoclave held at 121.1°C is being used to process sausage meat 101.6 mm in diameter and 0.61 m long which is originally at 21.1°C. After 2 h the temperature at the center is 98.9°C. If the diameter is increased to 139.7 mm, how long will it take for the center to reach 98.9°C? The heat transfer coefficient to the surface is h 1100 W/m2 · K, which is very large so that the surface resistance can be considered negligible. (Show this.) Neglect the heat transfer from the ends of the cylinder. The thermal conductivity k = 0.485 W/m · K. Ans. 3.78 h
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