Number 2 A piece of beef steak 5 cm thick will be frozen in the freezer room -25°C. This product has a moisture content of 73%, a density of 970 kg / m³, and a thermal conductivity (frozen) of 1.1 W/(m²K). Estimate the freezing time. using the Plank equation. This product has an initial freezing temperature of -1.75°C, and the movement of air in the freezing room gives a convective heat transfer coefficient of 15 W/(m²K). tf = answer in hour
Number 2 A piece of beef steak 5 cm thick will be frozen in the freezer room -25°C. This product has a moisture content of 73%, a density of 970 kg / m³, and a thermal conductivity (frozen) of 1.1 W/(m²K). Estimate the freezing time. using the Plank equation. This product has an initial freezing temperature of -1.75°C, and the movement of air in the freezing room gives a convective heat transfer coefficient of 15 W/(m²K). tf = answer in hour
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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Number 2
A piece of beef steak 5 cm thick will be frozen in the freezer room -25°C. This product has a moisture content of 73%, a density of 970 kg / m³, and a thermal conductivity (frozen) of 1.1 W/(m²K). Estimate the freezing time. using the Plank equation. This product has an initial freezing temperature of -1.75°C, and the movement of air in the freezing room gives a convective heat transfer coefficient of 15 W/(m²K).
tf = answer in hour
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