Inconel refers to a class of nickel-chromium-based superalloys that are used in high-temperature applications, such as gas turbine blades. For further improvement in the performance of gas turbine engines, the outer blade surface is coated with ceramic-based thermal barrier coating (TBC). A flat Inconel plate with a thickness of 12 mm is coated with a layer of TBC with a thickness of 300 um on its surface. At the interface between the Inconel and the TBC, the thermal contact conductance is 3500 W/m2 K. The thermal conductivities of the Inconel and the TBC are 25 W/m K and 1.5 W/m-K, respectively. The plate is in a surrounding of hot combustion gasses at 1500'C, and the convection heat transfer coefficient is 750 W/m K. Determine the temperature at the mid-plane of the Inconel plate if the outer surface temperature is 1175°C. The temperature is 1'C.

Inconel refers to a class of nickel-chromium-based superalloys that are used in high-temperature applications, such as gas turbine blades. For further improvement in the performance of gas turbine engines, the outer blade surface is coated with ceramic-based thermal barrier coating (TBC). A flat Inconel plate with a thickness of 12 mm is coated with a layer of TBC with a thickness of 300 um on its surface. At the interface between the Inconel and the TBC, the thermal contact conductance is 3500 W/m2 K. The thermal conductivities of the Inconel and the TBC are 25 W/m K and 1.5 W/m-K, respectively. The plate is in a surrounding of hot combustion gasses at 1500'C, and the convection heat transfer coefficient is 750 W/m K. Determine the temperature at the mid-plane of the Inconel plate if the outer surface temperature is 1175°C. The temperature is 1'C.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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