Results 51 to 60 of about 10,186 (228)

Stability and Liftoff of a N2-in-H2 Jet Flame in a Vitiated Co-flow at Atmospheric Pressure

open access: yesEurasian Chemico-Technological Journal, 2014
The stability and liftoff characteristics of a nitrogen (N2) diluted hydrogen (H2) jet flame in a vitiated co-flow are investigated experimentally with particular attention focused on regimes where multiple stabilization mechanisms are active ...
A. A. North   +4 more
doaj   +1 more source

Catastrophic Degradation in Solid Oxide Fuel Cells Caused by Air Supply Interruption in Real‐World Operations: Fundamental Mechanisms and Mitigation Strategies

open access: yesAdvanced Science, Volume 13, Issue 3, 14 January 2026.
Interrupting the air supply during the operation of solid oxide fuel cells leads to irreversible chemical degradation of the cathode materials, primarily driven by strontium at the A‐site of perovskite structures. Alternative strontium‐free materials effectively address this issue, ensuring high performance and reliable operation during operational ...
Haewon Seo   +11 more
wiley   +1 more source

A Shock‐Tube Facility for Gas‐Phase Chemical Kinetics Studies: Design, Validation, and Application for Methane Oxidation

open access: yesChemistry–Methods, Volume 6, Issue 1, January 2026.
A high‐pressure shock‐tube facility is developed to investigate high‐temperature chemical‐kinetics for next‐generation combustion systems. The design enables extended test times and integrates multiple optical diagnostics for time‐resolved species detection.
Sulaiman A. Alturaifi   +8 more
wiley   +1 more source

Algorithmic Analysis of Chemical Dynamics of the Autoignition of NH3–H2O2/Air Mixtures

open access: yesEnergies, 2019
The dynamics of a homogeneous adiabatic autoignition of an ammonia/air mixture at constant volume was studied, using the algorithmic tools of Computational Singular Perturbation.
Ahmed T. Khalil   +4 more
doaj   +1 more source

Computational study of ECN Spray A and Spray D combustion at different ambient temperature conditions

open access: yesTransportation Engineering, 2020
The combustion process of the Engine Combustion Network (ECN) Spray A and Spray D is studied over a wide range of ambient temperatures from 750 K to 900 K.
J.M. García-Oliver   +3 more
doaj   +1 more source

Autoignition test cell Patent [PDF]

open access: yes, 1971
Test chamber for determining decomposition and autoignition of materials used in spacecraft under controlled environmental ...
Bryan, C. J.   +2 more
core   +1 more source

Assessment of Life Safety Risk in Building Fires With an Integrated Fire and Evacuation Model

open access: yesDiscrete Dynamics in Nature and Society, Volume 2026, Issue 1, 2026.
This paper presents an integrated simulation methodology that combines fire hazard modeling with pedestrian evacuation analysis to evaluate how tenability conditions affect occupant egress. In the proposed approach, fire scenarios representative of leisure and spa resorts are modeled using the Fire Dynamics Simulator (FDS).
Roberto Bellas   +5 more
wiley   +1 more source

Understanding and Interpreting Laser Diagnostics in Flames: A Review of Experimental Measurement Techniques

open access: yesFrontiers in Mechanical Engineering, 2019
There is a wealth of existing experimental data of flames collected using laser diagnostics. The primary objective of this review is to provide context and guidance in interpreting these laser diagnostic data.
Michael J. Evans, Paul R. Medwell
doaj   +1 more source

Performance, Emissions, and Combustion Characteristics of a Hydrogen-Fueled Spark-Ignited Engine at Different Compression Ratios: Experimental and Numerical Investigation

open access: yesEnergies, 2023
This paper investigates the performance of hydrogen-fueled, spark-ignited, single-cylinder Cooperative Fuel Research using experimental and numerical approaches.
Ducduy Nguyen   +2 more
doaj   +1 more source

Study on Chemical Kinetic Mechanism of Methanol/Ammonia/n‐Heptane for Engine Combustion

open access: yesInternational Journal of Energy Research, Volume 2026, Issue 1, 2026.
Methanol and ammonia are considered promising low‐carbon fuel blends for engine applications; however, achieving stable ignition under compression–ignition conditions remains challenging. As a result, a small quantity of n‐heptane can be introduced as a highly reactive pilot fuel to initiate the combustion process. In this study a detailed mechanism is
Hua Xiao   +7 more
wiley   +1 more source

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