A turbine blade made of a metal alloy (k = 17 W/m·K) has a length of 5.3 cm, a perimeter of 11 cm, and a cross-sectional area of 5.13 cm2. The turbine blade is exposed to hot gas from the combustion chamber at 1053°C with a convection heat transfer coefficient of 538 W/m2·K. The base of the turbine blade maintains a constant temperature of 450°C and the tip is adiabatic.

The base of the turbine blade maintains a constant temperature of 450°C and the tip is adiabatic is 1076.67° C.

Explanation:

The rate of heat transfer for the turbine blade is expressed.

The parameters are calculated.

m = 82.38

Hence the rate of heat transfer for the turbine blade is

Q =

Q = -461.758 W

The temperature at the blade tip is calculated.

=

=

= 0.0254

= 1076.67° C

answer:

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