Search
Now showing items 1-10 of 40
Advanced Cooling in Gas Turbines 2016 Max Jakob Memorial Award Paper
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Gas turbines have been extensively used for aircraft engine propulsion, land-based power generation, and industrial applications. Power output and thermal efficiency of gas turbines increase with increasing turbine rotor ...
Swirl Impinging Cooling on an Airfoil Leading Edge Model at Large Reynolds Number
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Jet impingement cooling has been extensively investigated due to its significant applications on the airfoil leading edge region; however, most of which are about normal jet impingement. The systematic research on swirl ...
Heat Transfer and Pressure Loss in a Two-Pass, Rectangular Channel Featuring a Reduced Cross-Sectional Area After the 180-Deg Tip Turn With Different Turning Vane Configurations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Serpentine, multi-pass cooling passages are used in cooling advanced gas turbine blades. In the open literature, most internal cooling studies use a fixed cross-sectional area for multi-pass channels. Studies that use ...
Effects of Jet-to-Target Surface Spacing and Pin-Fin Height on Jet Impingement Heat Transfer in a Rectangular Channel
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An experimental study was completed to quantify heat transfer enhancement, pressure loss, and crossflow effect within a channel of inline impinging jets. The jet diameter is 5.08 mm; the jet-to-jet spacings in the streamwise ...
Heat Transfer and Friction in a Rectangular Channel With Varying Numbers of Walls Roughened With 90-Deg Transverse or 45-Deg V-Shaped Ribs
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An experimental investigation was performed to measure the regionally averaged heat transfer distributions and friction factors for fully developed turbulent flow in a rectangular channel with a width-to-height aspect ratio ...
Heat Transfer and Pressure Drop Measurements in a High Aspect Ratio Channel With Circular Pins and Strip Fins
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper focuses on the measurements of heat transfer enhancement and pressure drop of different pin or fin configurations in a high aspect ratio (AR = 9.57/1.2) channel. Two different pin-fin shapes including circular ...
Turning Region Heat Transfer in Five, Stationary and Rotating, Multipass Channels With Various Aspect Ratios
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This work summarizes studies that experimentally investigated the effect of rotation on heat transfer in the 180 deg tip and hub turns of cooling channels with various aspect ratios (ARs). The studied AR ranges from 1:4 ...
Turbine Blade Platform Film Cooling With Simulated Swirl Purge Flow and Slashface Leakage Conditions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The combined effects of inlet purge flow and the slashface leakage flow on the film cooling effectiveness of a turbine blade platform were studied using the pressure-sensitive paint (PSP) technique. Detailed film cooling ...
A Predictive Model for Preliminary Gas Turbine Blade Cooling Analysis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The growing trend to achieve a higher turbine inlet temperature (TIT) in the modern gas turbine industry requires a more efficient and advanced cooling system design. Therefore, a complete study of heat transfer is necessary ...
Turbine Blade Leading Edge Cooling With One Row of Normal or Tangential Impinging Jets
Publisher: The American Society of Mechanical Engineers (ASME)