Results 41 to 50 of about 217 (162)

High-Performance Computing Optimization of the Maxwell–Stefan Diffusion Model in OpenFOAM

Applied Sciences
Multicomponent diffusion modeling based on the Maxwell–Stefan formulation is widely used in high-fidelity combustion simulations due to its superior physical accuracy compared with simplified diffusion models. However, the computational complexity of the
Zixin Chi, Xin Hui, Bosen Wang
doaj   +1 more source

Mathematical thermo‐mechanical analysis on flame‐solid interaction: Steady laminar stagnation flow flame stabilized at a plane wall coupled with thermo‐elasticity model

ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 104, Issue 12, December 2024.
Abstract A laminar stagnation flow flame stabilized at a plane wall is theoretically analyzed, coupled with a thermo‐elasticity model in the wall. Mathematical models for both the flame and the wall will be proposed, and corresponding analytical solutions based on their dimensionless forms will be obtained. The mathematical analysis of this flame‐solid
Chunkan Yu, Mohammad Mahdi Malayeri, Thomas Böhlke, Zheng Chen, Felipe Minuzzi   +4 more
wiley   +1 more source

Advancements in Solid Oxide Fuel Cell Technology: Bridging Performance Gaps for Enhanced Environmental Sustainability

Advanced Energy and Sustainability Research, Volume 5, Issue 11, November 2024.
This study offers a concise yet comprehensive overview of solid oxide fuel cell (SOFC) technology. It showcases the structure of an SOFC, outlining its benefits, challenges, and the techniques used in its fabrication. The review also discusses key performance and efficiency metrics and highlights the versatile applications of SOFC in transportation ...
Jingjing Li, Junhan Cheng, Yubing Zhang, Zhonghao Chen, Mahmoud Nasr, Mohamed Farghali, David W. Rooney, Pow‐Seng Yap, Ahmed I. Osman   +8 more
wiley   +1 more source

Material selection and manufacturing for high‐temperature heat exchangers: Review of state‐of‐the‐art development, opportunities, and challenges

International Journal of Ceramic Engineering &Science, Volume 6, Issue 5, September 2024.
High temperature heat exchangers may be designed from ceramics to achieve higher performance, and various materials and manufacturing techniques can help achieve highly efficient high temperature systems. Abstract Many energy systems demand heat transfer at high temperatures to keep up with high demand for power, so high‐temperature material that can ...
Corson L. Cramer, Edgar Lara‐Curzio, Amy M. Elliott, Trevor G. Aguirre, Bola Yoon, Brian A. Fricke, Vivek Rao, Prashant Jain, Kashif Nawaz   +8 more
wiley   +1 more source

Triply Periodic Minimal Surface Structures: Design, Fabrication, 3D Printing Techniques, State‐of‐the‐Art Studies, and Prospective Thermal Applications for Efficient Energy Utilization

Energy Technology, Volume 12, Issue 5, May 2024.
Herein, the recent advancements in triply periodic minimal surface (TPMS) structures are presented, focusing on their potential for enhancing energy utilization in various systems. A comprehensive survey of design methodologies, software tools, commercial materials, and 3D printing techniques is provided.
Mohamed G. Gado, Oraib Al‐Ketan, Muhammad Aziz, Rashid Abu Al‐Rub, Shinichi Ookawara   +4 more
wiley   +1 more source

Modeling of NOx and Soot Formation in Diesel Combustion Modélisation de la formation des NOx et de la suie en combustion diesel

Oil & Gas Science and Technology, 2006
An approach to model the formation and oxidation or reduction of soot and NO in turbulent diffusion flames is presented. The model is based on the flamelet library approach and extended to account for radiative heat losses in the flame. Due to the rather
Dederichs A. S., Balthasar M., Mauss F.
doaj   +1 more source

Exploring the (Dis)‐Similarities of Half‐Cell and Full Cell Zero‐Gap Electrolyzers for the CO2 Electroreduction

ChemElectroChem, Volume 11, Issue 5, March 1, 2024.
Examining catalytic trends between simple‐to‐assemble zero‐gap half‐cells and industrially relevant electrolyzers for CO2 electroreduction highlights the former as a dependable screening platform. Optimizations suggested aim to enhance comparability and ensure electrolytic stability, facilitating exploration of diverse gas diffusion electrode ...
Vimanshu Chanda, Dennis Blaudszun, Lucas Hoof, Ignacio Sanjuán, Kevinjeorjios Pellumbi, Kai junge Puring, Corina Andronescu, Ulf‐Peter Apfel   +7 more
wiley   +1 more source

Flamelet LES of solid fuel/ammonia co-combustion with differential diffusion

Applications in Energy and Combustion Science
Differential diffusion is expected to be important in a pulverized coal/ammonia co-combustion system due to the co-existence of heavy species in volatiles and light species in the ammonia stream.
Xu Wen, Ali Shamooni, Thorsten Zirwes, Christian Hasse   +3 more
doaj   +1 more source

The asymptotic structure of counterflow diffusion flames for large activation energies [PDF]

Acta Astronautica, 1974
The structure of steady state diffusion flames is investigated by analyzing the mixing and chemical reaction of two opposed jets of fuel and oxidizer as a particular example. An Arrhenius onestep irreversible reaction has been considered in the realistic limit of large activation energies.
openaire   +2 more sources

Characteristic of Premixed Hydrogen/Air Tubular Flames in Microcombustor: Effects of Stimulated and Unstimulated Inlet Conditions on Flame Dynamics

International Journal of Energy Research, Volume 2024, Issue 1, 2024.
The present study investigates the characteristics and periodic behavior of H2/air tubular flames in a 1 mm diameter microtube under exciting and nonexciting inlet conditions. Under unstimulated inlet conditions, increasing inlet velocity positively impacted flow stratification and self‐sustaining of the tubular flames, leading to higher maximum ...
Alireza Alipoor, Pouyan Abbaspour, Weiwei Han   +2 more
wiley   +1 more source