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Experimental Investigation on the Transpiration Cooling Characteristics of Sintered Wire Mesh in Plain Weave [PDF]

open access: yesMicromachines, 2022
We experimentally investigate the transpiration cooling characteristics of a porous material, sintered wire mesh. Three samples with different porosities in a plain weave structure are tested with various blowing ratios in an open-loop wind tunnel with a
Yubo Peng   +4 more
doaj   +2 more sources

Transpiration Cooling Using Liquid Water [PDF]

open access: yesJournal of Thermophysics and Heat Transfer, 2007
At the Space Launcher System Analysis (SART) department of DLR-Cologne, a hypersonic spaceplane for passenger transportation is being investigated. A major challenge is the aerodynamic heating of the vehicle. A possible solution for handling the extreme heatloads will be presented. The solution involves an innovative new way of transpiration cooling,
van Foreest, Arnold   +5 more
core   +7 more sources

Study on the Particle Deposition Characteristics of Transpiration Cooling Structures with Sintered Wire Mesh [PDF]

open access: yesMicromachines
Transpiration cooling based on a porous structure has an ultra-high cooling efficiency, which is expected to be one solution to improve the cooling technology of aero-engine turbine blades. However, particulate impurities in the gas flow channel continue
Zhe Zhang, Xiang Luo, Yubo Peng
doaj   +2 more sources

Absorption of Energy in Excess, Photoinhibition, Transpiration, and Foliar Heat Emission Feedback Loops During Global Warming [PDF]

open access: yesCells
Global warming is increasingly constraining plant productivity by altering the photosynthetic energy balance and leaf thermoregulation. Under high light and elevated temperatures, absorption of energy in excess (AEE) by photosystem II disrupts ...
Roshanak Zarrin Ghalami   +2 more
doaj   +2 more sources

Decoupling of stomatal conductance, transpiration and photosynthesis in terrestrial plants under elevated temperature: a meta-analysis [PDF]

open access: yesNature Communications
Elevated temperatures pose challenges to stomatal conductance, which regulates transpiration and photosynthesis. However, the coupling of stomatal conductance, transpiration and photosynthesis may shift with warming.
Zhaoguo Wang   +2 more
doaj   +2 more sources

AlN-based aerogel thermo-cooler enabled by enhanced phonon conduction and unconstrained liquid capillarity [PDF]

open access: yesNature Communications
Transpiration cooling is a thermal management technique that utilizes the phase change of liquid coolant to effectively dissipate heat. Porous ceramic media play a crucial role in this cooling process by facilitating liquid transport and heat exchange ...
Shengnan Meng   +5 more
doaj   +2 more sources

Numerical investigation on the double-layer porous plate of transpiration cooling with phase change under different heat flux

open access: yesResults in Engineering, 2023
Transpiration cooling is a potential active thermal protection method for aircraft under severe thermal environment. Though it is cooling efficiency that is of concern in most structural designs, the injection pressure is equally critical for ...
Fei He   +3 more
doaj   +1 more source

Numerical Investigation on the Mechanism of Transpiration Cooling for Porous Struts Based on Local Thermal Non-Equilibrium Model

open access: yesEnergies, 2022
Struts as an important structure in the combustion chamber of hypersonic flight vehicles to inject fuel into main flow face a severe thermal environment. Transpiration cooling is considered as a potential method to provide a thermal protection for struts.
Haiwei Yang   +3 more
doaj   +1 more source

Effects of particle diameter and plate thickness on transpiration cooling for double-layer porous plates

open access: yesFrontiers in Energy Research, 2022
Transpiration cooling is a highly efficient active thermal protection technology, which has a great application prospect in the thermal protection of hypersonic vehicles. Nevertheless, the problem of large injection pressure caused by porous structure in
Xiaokai Zhang   +5 more
doaj   +1 more source

Experimental and numerical investigation of micro-scale effusion and transpiration air cooling on cascaded turbine blades

open access: yesCase Studies in Thermal Engineering, 2022
Micro cooling utilizing the micro-sized cooling hole or a porous structure on the surface is a promising technology in cooling applications of gas turbine blades.
Mingeon Kim   +3 more
doaj   +1 more source

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