Results 71 to 80 of about 285,233 (302)

Interaction of Ladle Slag With Varying SiO2 Content and Recyclate‐Based MgO–C Refractories

Advanced Engineering Materials, EarlyView.
Ladle slags (CaO/Al2O3 = 1) with 1–20 wt% SiO2 were investigated in contact with industrial MgO–C refractories fabricated from fresh magnesia and 50 wt% recyclate. The sessile drop method at 1600°C reveals intensive gas formation, delayed slag infiltration in recyclate‐based samples, and, under high‐SiO2 slag, formation of a dense MgAl2O4‐rich ...
Anton Yehorov, Eldar Salpagarov, Anhelina Mospan, Till Manon Jannis Stadtmüller, Thomas Schemmel, Christos Georgios Aneziris, Olena Volkova   +6 more
wiley   +1 more source

ENHANCED IMPINGEMENT JET COOLING OF GAS TURBINE WALL HEAT TRANSFER USING CFD CHT CODE: INFLUENCE OF WALL THERMAL GRADIENT WITH FIN AND DIMPLE OBSTACLES

Arid Zone Journal of Engineering, Technology and Environment, 2019
Gas turbine (GT) jet cooling using the regenerative or impingement jet backside cooling system is applicable to low NOx GT combustors and was investigated in the present work. The impingement heat transfer investigated is for the techniques where all the
A. M. El-Jummah, G. E. Andrews, J. E. J. Staggs   +2 more
doaj   +2 more sources

Effect of Co-Axial Flow Velocity on Soot Formation in a Laminar Jet Diffusion Flame under Microgravity

Journal of Thermal Science and Technology, 2007
To examine the effect of low co-axial flow on soot formation in a laminar jet diffusion flame, microgravity experiments have been conducted. The tested co-axial flow velocity range is 0-7.3 cm/s, which is very difficult to provide on the ground because ...
Byoung-Ho JEON, Osamu FUJITA, Yuji NAKAMURA, Hiroyuki ITO   +3 more
doaj   +1 more source

Active control of coaxial jet flames under different fuel compositions through manipulation of mixing process with miniature jet actuators

Journal of Thermal Science and Technology, 2020
The gaseous fuel-air coaxial jet flow and combustion under different fuel compositions are actively controlled through periodic excitation of the initial jet shear layer with arrayed miniature jet actuators equipped on the inner surface of the annular ...
Yu SAIKI, Masahiro KURODA, Kasumi NAKURA, Yojiro ISHINO   +3 more
doaj   +1 more source

Smoke Point in Co-flow Experiment [PDF]

, 2009
The Smoke Point In Co-flow Experiment (SPICE) determines the point at which gas-jet flames (similar to a butane-lighter flame) begin to emit soot (dark carbonaceous particulate formed inside the flame) in microgravity.
Sunderland, Peter B., Urban, David L., Yuan, Zeng-Guang   +2 more
core   +1 more source

The flow structure behind vortex generators embedded in a decelerating turbulent boundary layer [PDF]

, 2009
The objective of the present work is to analyse the behaviour of a turbulent decelerating boundary layer under the effect of both passive and active jets vortex generators (VGs).
Braud, Caroline, Cathalifaud, Patricia, Godard, Gilles, Stanislas, Michel   +3 more
core   +4 more sources

Impact of Sustainable Binders Based on Lignin and Collagen on the Volume Stability and Mechanical Properties of MgO‐C Refractories with MgO‐C Recyclates

Advanced Engineering Materials, EarlyView.
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller, Florian Kerber, Kirsten Moritz, Steffen Dudczig, Konstantin Kraushaar, Thomas Schemmel, Jana Hubálková, Patrick Gehre, Christos G. Aneziris   +8 more
wiley   +1 more source

Space-time modulation of turbulence in co-flow jets

International Journal of Heat and Fluid Flow, 2020
This paper focuses on the effects of a space-time dependent periodic stirring of a moderately turbulent planar co-flow jet configuration. The baseline flow is agitated in time and in space by small-scale turbulent perturbations in combination with large-scale modulation imposed at the inflow plane of a rectangular domain of size L × L × 2L in the x, y ...
Cardoso de Souza, T., Bastiaans, R.J.M., De Goey, L.P.H., Geurts, B.J.   +3 more
openaire   +1 more source

Development of Sustainable MgO–C Refractories Using MgO–C Recyclates and a Novel Eco‐Friendly Fructose–Tannin Binder Crosslinked With Citric Acid

Advanced Engineering Materials, EarlyView.
This study develops sustainable MgO–C refractories using recycled materials and eco‐friendly fructose–tannin binders. The enhanced performance of citric acid as a cross‐linker and functional additives on mechanical and thermomechanical properties was examined. Characterization included strength tests, immersion trials, and microstructural and inclusion
Dinesh K. Gunasekar, Jana Hubálková, Steffen Dudczig, Gert Schmidt, Florian Kerber, Thomas Schemmel, Patrick Gehre, Christos G. Aneziris   +7 more
wiley   +1 more source

Nano-CaCO3 synthesis by jet-reactor from calcium carbide slag

Materials Research Express, 2020
Nano-CaCO _3 was producted by using carbide slag in the self-designed jet-reactor. The effect of different operating parameter such as CO _2 flow rate and concentration, liquid flow rate and concentration of Ca(OH) _2 on the CaCO _3 particle size and ...
Shuaidong Mao, Yan Liu, Ting-an Zhang, Xiaolong Li   +3 more
doaj   +1 more source