... acquiring a single thermogram of the whole investigated surface. Three separate infrared images are grabbed, and the object signal distribution over a single periodical domain is reconstructed via a MATLAB ® routine, which performs projective transformation, cropping, and reassembling of the thermograms...

... of the effectiveness. 09 11 2010 03 12 2010 21 07 2011 21 07 2011 boundary layers coolants cooling engines flow infrared imaging Film cooling is state-of-the-art technology in cooling hot gas components of modern gas turbines, e.g., vanes and blades of the first turbine stages...

... 24 05 2011 24 05 2011 blades flow simulation gas turbines infrared imaging multiphase flow syngas Utilizing available coal resources to efficiently generate power while minimizing the production of greenhouse gases has become a major challenge for the current generation...

... 04 2011 26 04 2011 computational fluid dynamics engines heat transfer infrared imaging Mach number For the past several decades, the thermal-mechanical constraints on increasing the rotational speed of shrouded blades have driven the desire of many engine manufacturers...

... years. blades cooling engines gas turbines heat transfer infrared imaging 29 06 2010 01 07 2010 20 04 2011 20 04 2011 2011 American Society of Mechanical Engineers ...

... needed by the gas turbine industry to develop durable and efficient blade tip configurations and tip cooling designs. blades computational fluid dynamics heat transfer infrared imaging Mach number shock waves supersonic flow transonic flow turbines 22 07 2009 21 05 2010...

... with a steel frame with an infrared transmitting window made of ZnSe (zinc selenide) for infrared imaging access. The schematic is shown in Fig. 3 . The film cooling test rig is powered by a centrifugal compressor, which, through insulated piping, leads to a steam heat exchanger wherein the freestream...

... 2009 30 09 2009 27 10 2010 27 10 2010 aerospace engines blades gas turbines heat transfer infrared imaging regression analysis It is widely accepted that the future of aircraft gas turbine engines lies in an increase in turbine entry temperatures (TET) for an increase...

... and endwall surfaces where cooling is most critical. coal cooling gas turbines infrared imaging liquid phase deposition wind tunnels 2011 American Society of Mechanical Engineers ...

...) are associated with these test pieces. The cooling performance tests were conducted by using these test pieces for several Reynolds numbers of the mainstream hot gas [ 2.2 × 10 5 – 3.4 × 10 5 ] and cooling airflow [ 3 × 10 3 – 1 × 10 4 ] . Infrared images of the heated surfaces of the test pieces were captured...

... cap itself. This augmentation method resulted in negligible increase in tip turn pressure drop over that of a smooth surface. 06 06 2007 23 06 2007 31 07 2008 blades channel flow convection cooling gas turbines infrared imaging The cooling of high temperature...

.... The cooling levels exhibited by these particular geometries are comparable to shaped holes, but much easier and cheaper to manufacture. 12 07 2006 14 07 2006 coolants cooling turbines blades infrared imaging heat conduction turbulence jets internal combustion engines transverse...

... (mechanical) cooling temperature measurement thermocouples infrared imaging In state-of-the-art gas turbine cooling schemes film cooling is a well-accepted and widely used means to keep the surface temperatures of components with high thermal loads like first stage vanes and blades at acceptable...

... Review Chair: A. J. Strazisar. 13 June 2004 01 October 2003 01 March 2004 29 12 2004 heat transfer infrared imaging temperature distribution jets turbines “Film cooling is the introduction of secondary fluid (coolant) at one or more discrete locations along...

... roughness on heat transfer and pressure loss is determined along with the various interactions among these parameters. 12 12 2003 31 08 2004 heat transfer jets rough surfaces boundary layers infrared imaging temperature measurement First presented at the 2001 International...

... the pre-heater to be quickly lifted away (∼0.1 s), while at the same time initiating data acquisition. An AGEMA Thermovision ® 900 Infrared imaging camera and support computer are used to obtain the external surface temperatures as a function of time. The camera imaging array is 272 by 136 pixels...

.... This is contrasted with a vane in which the strongest curvature exists on the suction side of the stagnation line at a much higher Reynolds number flow. gas turbines cooling film flow turbulence scaling phenomena density infrared imaging 08 May 2000 01 February 2000 Contributed...

... received by the International Gas Turbine Institute February 1999. Paper No. 99-GT-164. Review Chair: D. C. Wisler. 07 June 1999 01 February 1999 gas turbines heat transfer cooling swirling flow infrared imaging flow visualisation Improving the efficiencies of gas turbine...

... February 1999 gas turbines cooling aerodynamics infrared imaging heat transfer design engineering The demands of tomorrow’s increasingly aggressive gas turbine engine cycles continue to drive the evolution of advanced hot section cooling designs. The objectives of increased cycle...