Heat TransferMediumBloom L4
Question
The temperature drop through layer furnace wall is 900oc. Each layer is of equal area of cross - section. Which of the following action(s)will result in lowering the temperature θ of the interface ?
Options
A.By increasing the thermal conductivity of outer layer.
B.By increasing the thermal conductivity of inner layer.
C.By increasing thickness of outer layer.
D.By increasing thickness of inner layer.
Solution
By increasing thickness of inner layer.Rate of heat flow
Now, we can see that θ can be decreased by increasing thermal conductivity of outer layer (K0) and thickness of inner layer (li).
Now, we can see that θ can be decreased by increasing thermal conductivity of outer layer (K0) and thickness of inner layer (li).
Create a free account to view solution
View Solution FreeMore Heat Transfer Questions
A hollow copper sphere & a hollow copper cube of same surface area & negligible thickness, are filled warm water of same...If temp. of ideal black body increased by 10% what will be % increase in quantity of radiation emitted from it′s s...The rate of emission of electro-magnetic energy by any body does not depend on:...Star A has radius r surface temperature T while star B has radius 4r and surface temperature T/2. The ratio of their rad...Calculate the energy radiated per minute from the filament of an incandascent lamp at 2000K if the surface area is 5 ...