Numerical time-dependent 3D simulation of flow pattern and heat distribution in an ammonothermal system with various baffle shapes

Journal article
(Original article)


Publication Details

Author(s): Erlekampf J, Seebeck J, Savva P, Meissner E, Friedrich J, Alt N, Schlücker E, Frey L
Journal: Journal of Crystal Growth
Publisher: Elsevier
Publication year: 2014
Volume: 403
Pages range: 96-104
ISSN: 0022-0248


Abstract


A numerical analysis of an ammonothermal synthesis process for the bulk growth of nitride crystals was performed. The analysis includes the development of a thermal model for a lab-scale ammonothermal autoclave, which was validated by in situ temperature measurements and applied to tailor the temperature field inside the autoclave. Based on the results of the global thermal 2D simulations, a local 3D model was used to include convective phenomena in the analysis. Moreover, the influence of the baffle and different baffle shapes on the flow velocity was investigated. Fluctuations of the temperature as well as the flow velocities occur, indicating that 3D considerations are essential to accurately investigate the heat and mass transport in ammonothermal systems.



FAU Authors / FAU Editors

Alt, Nicolas Dr.-Ing.
Lehrstuhl für Prozessmaschinen und Anlagentechnik
Erlekampf, Jürgen
Lehrstuhl für Elektronische Bauelemente
Frey, Lothar Prof. Dr.
Lehrstuhl für Elektronische Bauelemente
Schlücker, Eberhard Prof. Dr.-Ing.
Lehrstuhl für Prozessmaschinen und Anlagentechnik


How to cite

APA:
Erlekampf, J., Seebeck, J., Savva, P., Meissner, E., Friedrich, J., Alt, N.,... Frey, L. (2014). Numerical time-dependent 3D simulation of flow pattern and heat distribution in an ammonothermal system with various baffle shapes. Journal of Crystal Growth, 403, 96-104. https://dx.doi.org/10.1016/j.jcrysgro.2014.06.007

MLA:
Erlekampf, Jürgen, et al. "Numerical time-dependent 3D simulation of flow pattern and heat distribution in an ammonothermal system with various baffle shapes." Journal of Crystal Growth 403 (2014): 96-104.

BibTeX: 

Last updated on 2018-19-04 at 04:00