An exothermic chemical reaction takes place in a 20 cm thick slab and the energy generation rate per unit volume is 1 x 106 W/m³. The steady-state heat transfer rate into the slab at the left-hand side, i.e., at x = 0, is 280 W. Calculate the heat transfer rate to the surroundings from the right- hand side of the slab, i.e., at x = L. The surface area of each face is 40 cm². (1080 W)

An exothermic chemical reaction takes place in a 20 cm thick slab and the energy generation rate per unit volume is 1 x 106 W/m³. The steady-state heat transfer rate into the slab at the left-hand side, i.e., at x = 0, is 280 W. Calculate the heat transfer rate to the surroundings from the right- hand side of the slab, i.e., at x = L. The surface area of each face is 40 cm². (1080 W)

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.

Chapter3: Transient Heat Conduction

Section: Chapter Questions

Problem 3.3P

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Concept explainers

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.

Question

An exothermic chemical reaction takes place in a 20 cm thick slab and the energy generation rate
per unit volume is 1 x 106 W/m³. The steady-state heat transfer rate into the slab at the left-hand
side, i.e., at x = 0, is 280 W. Calculate the heat transfer rate to the surroundings from the right-
hand side of the slab, i.e., at x = L. The surface area of each face is 40 cm². (1080 W)

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