Effect of mass ratio on flame propagation behaviors and thermal radiation performance of Al–AlH3 composite dust DOI Creative Commons

Xingliang Wu,

Xiaoyu Xu,

Penggang Jin

et al.

Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: 61, P. 104888 - 104888

Published: July 24, 2024

Aluminum (Al) is a high-energy density fuel additive commonly used in solid composite propellants. However, Al dust will form dense oxide layer, which reduce activity. hydride (AlH3) can release hydrogen, destroying the film structure and releasing more energy. In this paper, flame thermal radiation characteristics of Al–AlH3 explosion with different mass ratios were studied experimentally. The results indicate that under same ratio, propagation height, velocity, surface temperature system show trend first increasing then decreasing. With decrease Al, increase gradually, maximum values 420 mm, 17.9 m⋅s−1, 2033 °C, respectively. AlH3 content, releases H2, lead to enhancement reaction intensity. Based on experimental semi-empirical static models, heat flux calculated. Compared quasi-static process tube side, value vertical greater than calculated value. Therefore, model modified by introducing λ. It provides theoretical basis for explosions confined tubes.

Language: Английский

Investigation of thermal properties of ethylene glycol-based Williamson hybrid-nanofluid over stretchable/shrinking flat plate and their effects on solar panels DOI Creative Commons

Lateefat Olanike Aselebe,

Adeshina Taofeeq Adeosun, Kazeem B. Kasali

et al.

International Journal of Thermofluids, Journal Year: 2024, Volume and Issue: 24, P. 100892 - 100892

Published: Oct. 9, 2024

Language: Английский

Citations

8
Heat transfer analysis of fluid flow over a nonlinear porous radially moving sheet: Benchmark solutions DOI Creative Commons
Sina Sadighi, Hossein Afshar, Payam Jalili

et al.

Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: unknown, P. 105707 - 105707

Published: Dec. 1, 2024

Language: Английский

Citations

4
Ag, Cu, and Se-doped ultrasmall iron oxide colloidal gels: Revealing potential for photo/electrochemical applications DOI Creative Commons
Olena Ivashchenko, Artur Jędrzak, Andrii Lys

et al.

Applied Surface Science, Journal Year: 2024, Volume and Issue: 673, P. 160916 - 160916

Published: Aug. 6, 2024

Synthesis and application of stable nanofluids are great interest due to their self-assembly ability collective behaviours that can influence optical, electrical, catalytic, mechanical responses. We report on the one-step synthesis colloidal gels designed with a sustainable chemistry approach, using low-toxic metal salts non-toxic heteropolysaccharide as reactants water medium. Monodisperse ultrasmall iron oxide (USIO) (2 nm in size) dopants (Ag, Cu Se) constitute colloids. This study explores main physical–chemical aspects these colloids, such rheological, magnetic, general structure, focusing potential applications electrocatalysis photocatalysis. Rheological measurements indicate non-Newtonian shear-thinning viscoelastic behaviour, characteristic weak gel systems. Doping Ag, Cu, Se increases viscosity by an order magnitude, promoting gelation structuring processes Moreover, adding significantly improved plasmon properties fluorescence intensity. Microstructural investigations revealed well-ordered microstructure combines tubular layered features reveals multi-level complexity. Among doped variants, Cu-doped USIO colloid shows most promising electrocatalytic photocatalytic performance, indicating versatile platforms for multiple areas, including biosensor solar energy conversion applications.

Language: Английский

Citations

3
Effect of mass ratio on flame propagation behaviors and thermal radiation performance of Al–AlH3 composite dust DOI Creative Commons

Xingliang Wu,

Xiaoyu Xu,

Penggang Jin

et al.

Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: 61, P. 104888 - 104888

Published: July 24, 2024

Aluminum (Al) is a high-energy density fuel additive commonly used in solid composite propellants. However, Al dust will form dense oxide layer, which reduce activity. hydride (AlH3) can release hydrogen, destroying the film structure and releasing more energy. In this paper, flame thermal radiation characteristics of Al–AlH3 explosion with different mass ratios were studied experimentally. The results indicate that under same ratio, propagation height, velocity, surface temperature system show trend first increasing then decreasing. With decrease Al, increase gradually, maximum values 420 mm, 17.9 m⋅s−1, 2033 °C, respectively. AlH3 content, releases H2, lead to enhancement reaction intensity. Based on experimental semi-empirical static models, heat flux calculated. Compared quasi-static process tube side, value vertical greater than calculated value. Therefore, model modified by introducing λ. It provides theoretical basis for explosions confined tubes.

Language: Английский

Citations

0