a. A slab of thermal insulator is 100 cm² in cross section and 2 cm thick. Itsthermal conductivity is 2.4 x 10 -+ cal/(s cm C"). If the temperature differencebetween opposite faces is 180 F', how much heat flows through the slab in oneday?

Given Cross-sectional area = 100 cm2 Thickness = 2 cm Thermal conductivity = 2.4 × 10-4 cal(s cm C)…

a. A slab of thermal insulator is 100 cm² in cross section and 2 cm thick. Its thermal conductivity is 2.4 x 10 - cal/(s em C). If the temperature difference between opposite faces is 180 F, how much heat flows through the slab in one day?

a. A slab of thermal insulator is 100 cm² in cross section and 2 cm thick. Its thermal conductivity is 2.4 x 10 - cal/(s em C). If the temperature difference between opposite faces is 180 F, how much heat flows through the slab in one day?

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter4: Numerical Analysis Of Heat Conduction

Section: Chapter Questions

Problem 4.5P

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Concept explainers

Conduction and Convection

When energy travels from one object to another it is said to have undergone heat transfer. Heat transfer is nothing but the transfer of thermal energy or internal energy from one thing to another, like e.g., when a vessel with water, kept on top of a burner, heats up because of the flame underneath it.

Question

a. A slab of thermal insulator is 100 cm² in cross section and 2 cm thick. Its
thermal conductivity is 2.4 x 10 -+ cal/(s cm C"). If the temperature difference
between opposite faces is 180 F', how much heat flows through the slab in one
day?

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