Thermal Distribution on Gas Turbine Blade Using Thermal Paint
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Fig. 9 Colour change of blades at different time interval
temperature is achieved after the exposure of blade to butane gas for 1 h (3600 s). The
colour of the blade surface at the distance of 10 mm from the root has been changed
at different time intervals. The change in surface temperature has been depicted
experimentally through remarkable colour change.
The above graph shown in Fig. 10 indicates the change of temperature with respect
to length of the blade. The temperature of the blade is changed from root to tip of
the blade. The maximum temperature is recorded at the distance of 10 mm from the
root.
The graph shown in Fig. 11 depicts the variation of temperature on the blade
surface at different time interval. The initial time was taken as 900 s, and with the
interval of 900 s, the experimentation has been done. The experimental results depict
that the surface temperature at the distance of 10 mm from root of the blade has been
increased linearly and it has reached 1100 °C from 800 °C.