A gas-turbine turbine blade comprises two separate pieces assembled in clamshell fashion and bonded together, each piece including an air-foil part and a root part in monolithic form, the air-foil being tapered and twisted with changing cambers from hub to tip so that straight line spanwise-...
Developments in turbine cooling techno... JC Han,HC Chen - 《Journal of Propulsion & Power》 被引量: 33发表: 2006年 COMPUTATION OF FLOW AND HEAT TRANSFER IN TURBINE BLADE COOLING PASSAGES BY REYNOLDS STRESS TURBULENCE MODEL Numerical predictions of three-dimensional flow and heat transfer are ...
A first one of the serpentine-shaped internal cooling paths may include a first passage that extends radially along a leading edge of the turbine blade from adjacent a root end of the turbine blade to adjacent a tip end of the turbine blade. The first passage may be configured to provide ...
Cooling holes are generally dispersed throughout the blade and connect the internal cooling passages with the outer surface of the blade. The steady stream of exiting air creates a film on the blade surface that additionally protects it from exposure to the hot gas. The cooling effectiveness and...
External cooling of turbine blades by film cooling is achieved by injecting relatively cooler air from the internal coolant passages out of the blade surface in order to form a protective layer between the blade surface and hot gas-path flow. For internal cooling, this presentation focuses on ...
United States Application US20090074576 Note: If you have problems viewing the PDF, please make sure you have the latest version ofAdobe Acrobat. Back to full text
passages with a channel aspect ratio varying from 1/4 (near blade leading edge) to 4 (near blade trailing edge), are nearly square in cross section with a typical relative rib height of 5-10% of the coolant channel hydraulic diameter, a rib spacing-to-height ratio varying from 5-15, ...
Problem to be solved: to provide a wing seat (16) for partially confining an operating medium passage in the turbine, the wing seat (16) having at least one coolant passage (20) for cooling guide that extends the interior of the thermal power station In the turbine blade (10) in the ...
Internal cooling is achieved by passing the coolant through several rib-enhanced serpentine passages ... JE‐CHIN HAN,SANDIP DUTTA - 《Ann N Y Acad Sci》 被引量: 143发表: 2001年 METHOD AND APPARATUS FOR TURBINE BLADE COOLING A method of cooling turbine blades of a fluid flow machine in ...
External cooling of turbine blades by film cooling is achieved by injecting relatively cooler air from the internal coolant passages out of the blade surface to form a protective layer between the blade surface and hot gas-path flow. The most important research contributions on turbine blade ...