Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 09 Feb 2018 My Price 7.00

portion of the turbine

EXAMPLE 6.5

 

Experimental tests using air as the working fluid are conducted on a portion of the turbine blade shown in the sketch. The heat flux to the blade at a particular point (x*) on the surface is measured to be q"= 95,000 W/m2. To maintain a steady-state surface temperature of 800°C, heat transferred to the blade is removed by circulating a coolant inside the blade.

 

 

 

q"(x*) = 95,000 W/m2

 

Ts = 800°C

Coolant channel

 

V = 160 m/s

T¥ = 1150°C

 

 

L = 40 mm

 

Original conditions

1.    Determine the heat flux to the blade at x* if its temperature is reduced to Ts,1 = 700°C by increasing the coolant flow.

2.    Determine the heat flux at the same dimensionless location x* for a similar turbine blade having a chord length of L = 80 mm, when the blade operates in an airflow at Too = 1150°C and V = 80 m/s, with Ts = 800°C.

 

 

 

Answers

Maurice Tutor
(5)
Status NEW Posted 09 Feb 2018 10:02 PM My Price 7.00

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