GATE ME 2018 Set 1 — Question 57
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Heat Transfer → Conduction → 1D Steady Conduction
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Question
A plane slab of thickness and thermal conductivity is heated with a fluid on one side (P), and the other side (Q) is maintained at a constant temperature, of 25°C, as shown in the figure. The fluid is at 45°C and the surface heat transfer coefficient, , is 10 W/m K. The steady state temperature, , (in °C) of the side which is exposed to the fluid is _______ (correct to two decimal places).
Correct answer
33.5 to 34.3
Solution
1.Given Data:
- Thickness, cm m
- Thermal conductivity, W/mK
- Fluid temperature,
- Heat transfer coefficient, W/m K
- Temperature at side Q,
At steady state, the heat flux from the fluid to surface P by convection equals the heat flux through the slab by conduction from P to Q.
3.Calculation:
Rounding to two decimal places, .Continue learning with Success Tracker
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