Results 31 to 40 of about 10,332,623 (155)

Towards the Development of Miniature Scale Liquid Fuel Combustors for Power Generation Application—A Review

Energies, 2023
As the demand for powerful, light energy sources continues to grow, traditional electrochemical batteries are no longer sufficient and combustion-based power generation devices have become an attractive alternative due to their high energy density ...
Vinay Sankar, Sreejith Sudarsanan, Sudipto Mukhopadhyay, Prabhu Selvaraj, Aravind Balakrishnan, Ratna Kishore Velamati   +5 more
doaj   +1 more source

LES evaluation of the effects of equivalence ratio fluctuations on the dynamic flame response in a real gas turbine combustion chamber [PDF]

, 2013
Large Eddy Simulations (LES) of a lean swirl-stabilized gas turbine burner are used to analyze mechanisms triggering combustion instabilities. To separately study the effect of velocity and equivalence ratio fluctuations, two LES of the same geometry are
Hermeth, Sebastian, Staffelbach, Gabriel, Gicquel, Laurent, Gicquel, Laurent Y.M., Poinsot, Thierry   +4 more
core   +1 more source

The Impact of Hydrogen on Flame Characteristics and Pollutant Emissions in Natural Gas Industrial Combustion Systems

Energies
To improve energy savings and emission reduction in industrial heating furnaces, this study investigated the impact of various molar fractions of hydrogen on natural gas combustion and compared the results of the Non-Premixed Combustion Model with the ...
Yamei Lan, Zheng Wang, Jingxiang Xu, Wulang Yi   +3 more
doaj   +1 more source

Global and Detailed Calculation of Tube Wall Temperature in a Process Furnace Steam Superheater

Chemie Ingenieur Technik, EarlyView.
This study presents a comparison between an iterative global model and multiple approaches to a new non‐iterative model with the purpose of predicting tube wall temperature of a superheater. The results show that the non‐iterative method achieves sufficient accuracy while improving the prediction of local temperature distribution and better ...
Anežka Michálková, Zdeněk Jegla
wiley   +1 more source

Nanocubes and Cuboctahedra: Entropic Stabilization Versus Thermal Segregation in Rock Salt‐ and Spinel‐Type Multinary Oxides from Spray‐Flame Synthesis

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Spray‐flame synthesis enables highly flexible and scalable production of multinary and high‐entropy oxide nanoparticles due to high synthesis temperatures with subsequent quenching. Temperature‐dependent in situ diffraction of as‐synthesized materials clearly reveals entropy stabilization in rock salt lattices, while spinels—featuring tetrahedral and ...
Mohammed‐Ali Sheikh, Steven Angel, Sabrina Schleich, Leon Müller, Jan Ternieden, Hatem M. A. Amin, Christof Schulz, Hartmut Wiggers   +7 more
wiley   +1 more source

Hydrogen Production With Water Electrolysis Technologies: Advances, Performance, and Potential Use for Low‐Gradient Combustion

Energy Science &Engineering, EarlyView.
This review links recent advances in water electrolysis with hydrogen utilization in low‐gradient combustion systems. While hydrogen eliminates direct CO2 emissions, its environmental and economic benefits depend strongly on production pathways, system‐level efficiency, and NOx mitigation through MILD/FLOX/HiTAC combustion.
Rafał Buczyński, Przemysław Draga
wiley   +1 more source

A Generalised Series Model for the LES of Premixed and Non-Premixed Turbulent Combustion

Energies
In this study, the generality and prediction accuracy of a generalised series model for the large eddy simulation of premixed and non-premixed turbulent combustion is explored. The model is based on the Taylor series expansion of the chemical source term
Weilin Zeng, Xujiang Wang, Kai Hong Luo, Konstantina Vogiatzaki, Salvador Navarro-Martinez   +4 more
doaj   +1 more source

Experimental Investigation and ANN‐Based Prediction of CI Engine Performance Fueled With Waste Plastic Oil–Diesel Blends Containing Al2O3 Nanoparticles

Energy Science &Engineering, EarlyView.
Waste plastic oil–diesel blends enhanced with Al2O3 nanoparticles were experimentally evaluated in a compression ignition engine under varying injection timings and modeled using artificial neural networks (ANNs). The optimized WP20PD + 1000 ppm blend improved brake thermal efficiency and reduced fuel consumption, while ANN prediction achieved high ...
Dudekula Jamal Basha, Upendra Rajak, Abhishek Agarwal, Balram Yelamasetti, Manoj Panchal, Sudheer Kumar, Abhishek Dasore   +6 more
wiley   +1 more source

Numerical simulation on the combustion characteristics of scramjet at high Mach number

Defence Technology
To investigate the problem of ethylene jet mixing and combustion in the scramjet at high Mach number (Ma = 8), numerical simulations were carried out for different equivalent ratios at cold and combustion conditions, in which three-dimensional steady ...
Jiahang Li, Zhaoyang Xia, Mi Yan, Hao Zhang, Jinfeng Dang, Majie Zhao   +5 more
doaj   +1 more source

Mathematical model in the form of vorticity-stream function for porous premixed combustion [PDF]

Songklanakarin Journal of Science and Technology (SJST), 2015
This paper proposes a mathematical model used to numerically simulate behaviors of the two-dimensional laminar premixed combustion in porous media. The governing equations proposed include vorticity-stream function equations.
Watit Pakdee, Nuttapong Utaivorawit, Ahmed Kadhim Hussein   +2 more
doaj