only A cold storage room has walls made of 220mm of brick on the outside, 90mm of plastic foam, and finally 16mm of wood on the inside. The outside and the inside air temperature are 25 and -3 °C respectively. If the inside and the outside heat transfer coefficients are respectively 30 and 11 W/m² °C, and the thermal conductivities of bricks, foam and wood are 0.99, 0.022 and 0.17 W/m °C respectively, determine: 1- The rate of heat removal by refrigeration if the total wall area is 85m². 2- The temperature of the inside surface of the brick.
only A cold storage room has walls made of 220mm of brick on the outside, 90mm of plastic foam, and finally 16mm of wood on the inside. The outside and the inside air temperature are 25 and -3 °C respectively. If the inside and the outside heat transfer coefficients are respectively 30 and 11 W/m² °C, and the thermal conductivities of bricks, foam and wood are 0.99, 0.022 and 0.17 W/m °C respectively, determine: 1- The rate of heat removal by refrigeration if the total wall area is 85m². 2- The temperature of the inside surface of the brick.
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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A cold storage room has walls made of 220mm of brick on the outside, 90mm
of plastic foam, and finally 16mm of wood on the inside. The outside and the inside
air temperature are 25 and -3 °C respectively. If the inside and the outside heat
transfer coefficients are respectively 30 and 11 W/m² °C, and the thermal
conductivities of bricks, foam and wood are 0.99, 0.022 and 0.17 W/m °C
respectively, determine:
1- The rate of heat removal by refrigeration if the total wall area is 85m².
2- The temperature of the inside surface of the brick.
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