7. A gas turbine blade is modelled as a flat plate. The thermal conductivity of the blade is 15 W/mk and it thickness is 1.5mm. The upper surface of the blade is exposed to hot gases at 1000°C and the lower is cooled by air bled of the compressor. The heat transfer coefficient at the upper and a lower surface of the blade is 2500 W/m*k and 1500w/m2k respectively. Under steady state conditions the temperature, at the upper surface of the blade is measured as 850°C, determine the temperature of the coolant air.
7. A gas turbine blade is modelled as a flat plate. The thermal conductivity of the blade is 15 W/mk and it thickness is 1.5mm. The upper surface of the blade is exposed to hot gases at 1000°C and the lower is cooled by air bled of the compressor. The heat transfer coefficient at the upper and a lower surface of the blade is 2500 W/m*k and 1500w/m2k respectively. Under steady state conditions the temperature, at the upper surface of the blade is measured as 850°C, determine the temperature of the coolant air.
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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Transcribed Image Text:A gas turbine blade is modelled as a flat plate. The thermal conductivity of the blade is 15 8.
W/mk and it thickness is 1.5mm. The upper surface of the blade is exposed to hot gases at
1000 C and the lower is cooled by air bled of the compressor. The heat transfer coefficient at
the
and a lower surface of the blade is 2500 W/m'k and 1500w/m-k respectively. Under
upper
steady state conditions the temperature, at the upper surface of the blade is measured as 850 C,
determine the temperature of the coolant air.
|
7.
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