A house is to be maintained at 21°C DBTand 50% RH, while the outdoor conditionsare -30°C DBT and 100% RH. The inner andouter surface heat transfer coefficientsare 8.3 W/m2.K and 34.4 W/m?.K,respectively. The exterior walls of thehouses are chosen such that they have athermal resistance of 0.45 m2.°C/W.Determine whether the walls are insulatedsufficiently to prevent moisturecondensation on the inner surfaces or not.If the selected wall construction may leadto condensation, what is the minimumthickness of insulation (kjns=0.036 W/m2 K)?to be added to prevent condensation

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A house is to be maintained at 21°C DBT and 50% RH, while the outdoor conditions are -30°C DBT and 100% RH. The inner and outer surface heat transfer coefficients are 8.3 W/m².K and 34.4 W/m?.K. respectively. The exterior walls of the houses are chosen such that they have a thermal resistance of 0.45 m².°C/W. Determine whether the walls are insulated sufficiently to prevent moisture condensation on the inner surfaces or not. If the selected wall construction may lead to condensation, what is the minimum thickness of insulation (kins=0.036 W/m² K) ?to be added to prevent condensation

A house is to be maintained at 21°C DBT and 50% RH, while the outdoor conditions are -30°C DBT and 100% RH. The inner and outer surface heat transfer coefficients are 8.3 W/m².K and 34.4 W/m?.K. respectively. The exterior walls of the houses are chosen such that they have a thermal resistance of 0.45 m².°C/W. Determine whether the walls are insulated sufficiently to prevent moisture condensation on the inner surfaces or not. If the selected wall construction may lead to condensation, what is the minimum thickness of insulation (kins=0.036 W/m² K) ?to be added to prevent condensation

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 3.12P

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