scholarly journals Utilization of the infrared thermography to identify the convective heat transfer coefficient into a rotating cylinder with an axial airflow

2006 ◽  
Author(s):  
S. Seghir-Ouali ◽  
D. Saury ◽  
S. Harmand ◽  
O. Phillipart ◽  
D. Laloy
Keyword(s):  
Heat Transfer ◽  
Heat Transfer Coefficient ◽  
Transfer Coefficient ◽  
Convective Heat Transfer ◽  
Infrared Thermography ◽  
Convective Heat ◽  
Convective Heat Transfer Coefficient ◽  
Rotating Cylinder

scholarly journals Some Experimental Investigations on Gas Turbine Cooling Performed with Infrared Thermography at Federico II

2015 ◽  
Vol 2015 ◽  
pp. 1-16
Author(s):  
T. Astarita ◽  
G. Cardone ◽  
L. de Luca ◽  
G. M. Carlomagno
Keyword(s):  
Heat Transfer ◽  
Heat Transfer Coefficient ◽  
Transfer Coefficient ◽  
Convective Heat Transfer ◽  
Gas Turbine ◽  
Infrared Thermography ◽  
Convective Heat ◽  
Gas Turbines ◽  
Convective Heat Transfer Coefficient ◽  
Turbine Blades

This paper reviews some experimental measurements of convective heat transfer coefficient distributions which are connected with the cooling of gas turbines, performed by the authors’ research group at the University of Naples Federico II with infrared thermography. Measurements concern impinging jets, cooling of rotating disks, and gas turbine blades, which are either stationary or rotating. The heated thin foil sensor, associated with the detection of surface temperature by means of infrared thermography, is exploited to accurately measure detailed convective heat transfer coefficient maps. The paper also intends to show how to correctly apply the infrared technique in a variety of gas turbines cooling problems.

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