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The Effect of Daylighting Strategies on Building Cooling Loads and Overall Energy
, 1986 Johnson, R. +3 more
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Superposition of Overall Cooling Effectiveness on a Turbine Blade Leading Edge
Volume 7: Heat Transfer: Combustors; Heat Transfer: Film CoolingAbstract Increasingly harsh turbine environments necessitate the design of more advanced cooling techniques as well as prediction of those cooling schemes’ performance at engine conditions. For several decades, film cooling design has been accelerated through a low-order superposition of adiabatic effectiveness in order to quickly ...
Bailey W. Hopkins, James L. Rutledge
semanticscholar +3 more sources
International Journal of Heat and Mass Transfer, 2020 Abstract The effects of geometrical parameters on overall cooling effectiveness were experimentally investigated on the flat plate with impingement/effusion cooling. Geometrical parameters investigated included two relative positions of impingement and effusion holes (staggered arrangement and overlapped arrangement) and three impingement gap ...
Gang Xie +5 more
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Experimental investigation on the overall cooling effectiveness of t-type impinging-film cooling
Applied Thermal Engineering, 2018Abstract This paper presents an experimental investigation of impinging-film cooling concerning the effects of various factors on overall cooling effectiveness η. The factors include blowing ratio M (0.31 ≤ M ≤ 1.84), non-dimensional jet-to-plate pitch Zn/d (1 ≤ Zn/d ≤ 2), non-dimensional spacing of jet holes Yn/d (1.6 ≤ Yn/d ≤ 2.4) and diameter of ...
Jingyu Zhang, Pengfei Ji, Jieli Wei
exaly +3 more sources
International Journal of Heat and Mass Transfer, 2016
Abstract The laminated cooling configuration with integrated impingement, rib-roughed and film cooling can result in high overall cooling effectiveness and is believed to be a promising cooling configuration for the next generation of advanced gas turbines.
Bai-Tao An
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Abstract The laminated cooling configuration with integrated impingement, rib-roughed and film cooling can result in high overall cooling effectiveness and is believed to be a promising cooling configuration for the next generation of advanced gas turbines.
Bai-Tao An
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Numerical Investigation on Overall Cooling Effectiveness of Narrow-Channel Double-Wall Cooling
ASME Journal of Heat and Mass TransferAbstract In the double-wall cooling of turbine blades, coolant migration can lead to uneven flow distribution, which, in severe cases, can cause hot gas intrusion into the film holes, affecting the lifespan of the blade. To mitigate the negative influence of coolant migration, this study proposes a novel double-wall system called the ...
Guangyao Xu +4 more
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Journal of Thermal Science and Engineering Applications, 2021
Abstract Increasing interest in the use of ceramic matrix composites (CMCs) for gas turbine engine hot gas path components requires a thorough examination of the thermal behavior one may expect of such components. Their highly anisotropic thermal conductivity is a substantial departure from traditional metallic components and can ...
Carol E. Bryant, James L. Rutledge
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Abstract Increasing interest in the use of ceramic matrix composites (CMCs) for gas turbine engine hot gas path components requires a thorough examination of the thermal behavior one may expect of such components. Their highly anisotropic thermal conductivity is a substantial departure from traditional metallic components and can ...
Carol E. Bryant, James L. Rutledge
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Overall Cooling Effectiveness on a Gas Turbine Vane With Swirl-Film Cooling
Volume 5A: Heat Transfer, 2019Abstract Numerical calculation of conjugate heat transfer is carried out to study the effect of combined film and swirl cooling at the leading edge of a gas turbine vane with a a cooling chamber inside, in which 3-D steady RANS approach with the k-ω SST turbulence model is used.
Haifen Du +4 more
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