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Numerical Heat Transfer, Part A: Applications, 2020
The structural optimization of a specific laminated cooling structure is conducted under gas turbine combustor representative aero-thermal conditions, with the aim at improving its overall cooling ...
Chen Wang +3 more
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The structural optimization of a specific laminated cooling structure is conducted under gas turbine combustor representative aero-thermal conditions, with the aim at improving its overall cooling ...
Chen Wang +3 more
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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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Volume 5C: Heat Transfer, 2016
Adiabatic and overall effectiveness levels were measured in a closed loop linear test section using an inlet Reynolds number of 120,000 for an airfoil model at its designed inlet angle of −30.1°. Two models were used in the study — one made of a low thermal conductivity foam, and one of a higher thermal conductivity material which allowed for the Biot ...
Kyle Chavez +2 more
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Adiabatic and overall effectiveness levels were measured in a closed loop linear test section using an inlet Reynolds number of 120,000 for an airfoil model at its designed inlet angle of −30.1°. Two models were used in the study — one made of a low thermal conductivity foam, and one of a higher thermal conductivity material which allowed for the Biot ...
Kyle Chavez +2 more
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Effects of Using Advanced Cooling Systems on the Overall Power Consumption of Processors
IEEE Transactions on Very Large Scale Integration (VLSI) Systems, 2013The increase in power dissipation of high-performance computing systems has driven the need for advance cooling systems. Recently, localized spot cooling using embedded thermoelectric coolers (eTECs) and chip-level cooling using miniature-scale refrigeration system have been demonstrated for mitigating thermal and power problems in high-performance ...
Won Ho Park, Chih-Kong Ken Yang
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Volume 5A: Heat Transfer, 2016
This paper presents experimental results of temperature distribution on a flat plate with both film cooling and impingement cooling configurations. The film plate consists of 4 rows of round holes injected at an angle of 30°. The impingement plate has a 6×6 jet array.
Bo Shi +4 more
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This paper presents experimental results of temperature distribution on a flat plate with both film cooling and impingement cooling configurations. The film plate consists of 4 rows of round holes injected at an angle of 30°. The impingement plate has a 6×6 jet array.
Bo Shi +4 more
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Volume 5A: Heat Transfer, 2019
Abstract Application of effusion cooling or effusion based compound cooling in the state of art gas turbine combustor is more and more common, especially in aero-engines. A linearly arranged planar optically accessible three-nozzle lab scale combustor equipped with perforated testing plate for cooling is designed.
Yongbin Ji +8 more
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Abstract Application of effusion cooling or effusion based compound cooling in the state of art gas turbine combustor is more and more common, especially in aero-engines. A linearly arranged planar optically accessible three-nozzle lab scale combustor equipped with perforated testing plate for cooling is designed.
Yongbin Ji +8 more
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Volume 5A: Heat Transfer, 2019
Abstract The previous theoretical work showed the matching principles of analogy parameters for effusion-impingement cooling model. The mismatch of temperature ratios Tg/Tc may result in different matching performance in laboratory condition.
Gang Xie +4 more
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Abstract The previous theoretical work showed the matching principles of analogy parameters for effusion-impingement cooling model. The mismatch of temperature ratios Tg/Tc may result in different matching performance in laboratory condition.
Gang Xie +4 more
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Volume 4: Heat Transfer, Parts A and B, 2012
The overall cooling effectiveness for a turbine airfoil was quantified based on the external surface temperature relative to the mainstream temperature and the inlet coolant temperature. This can be determined experimentally when the model is constructed so that the Biot number is similar to that of engine components. In this study, the overall cooling
Randall P. Williams +3 more
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The overall cooling effectiveness for a turbine airfoil was quantified based on the external surface temperature relative to the mainstream temperature and the inlet coolant temperature. This can be determined experimentally when the model is constructed so that the Biot number is similar to that of engine components. In this study, the overall cooling
Randall P. Williams +3 more
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Journal of Turbomachinery, 2021
Abstract One of the most effective ways to cool the combustor liner is through effusion cooling. Effusion cooling (also known as full-coverage effusion cooling) involves uniformly spaced holes distributed throughout the combustor liner wall. Effusion cooling configurations are preferred for their high effectiveness, low-pressure penalty,
Shoaib Ahmed +4 more
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Abstract One of the most effective ways to cool the combustor liner is through effusion cooling. Effusion cooling (also known as full-coverage effusion cooling) involves uniformly spaced holes distributed throughout the combustor liner wall. Effusion cooling configurations are preferred for their high effectiveness, low-pressure penalty,
Shoaib Ahmed +4 more
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Overall cooling effectiveness of effusion cooled annular combustor liner at reacting flow conditions
Applied Thermal Engineering, 2018Abstract A three-sector annular combustor test rig is built to carry out experimental investigation on the liner effusion cooling performance using steady state infrared radiation thermography method at reacting flow conditions. 7 rows of effusion holes in a staggered layout are distributed on both inner and outer liner bended testing plates, where ...
Yongbin Ji +3 more
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