Results 51 to 60 of about 688 (187)

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

Discrete 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, Arturo González-Gil, Jacobo Porteiro, José L. Míguez, Miguel A. Gómez, Deepali   +5 more
wiley   +1 more source

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

International 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, Yihang Huang, Aiguo Chen, Meirong Dong, Syed Mashruk, Agustin Valera-Medina, Guansheng Chen, Weiwei Han   +7 more
wiley   +1 more source

Characteristics of Hydrogen‐Enriched Fuels in Spark and Compression Ignition Engines With Dual Injection System: A Bibliometric Study of Research Evolution

International Journal of Energy Research, Volume 2026, Issue 1, 2026.
Recent fuel economy and stringent emissions concerns have stimulated the use of hydrogen in internal combustion engines and to drive dual‐fuel benefits. This paper explicitly conducted a bibliometric study of scholarly articles on hydrogen enrichment of diverse fuels in compression and spark ignition (SI) engines with dual injection systems (DIS ...
Solomon O. Giwa, Raymond T. Taziwa, Arun Thirumurugan   +2 more
wiley   +1 more source

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

Eurasian 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, D. Frederick, J. Y. Chen, R. Dibble, A. Gruber   +4 more
doaj   +1 more source

Hydrogen‐Enriched Direct Injection Diesel Engine Performance, Emission, Combustion, and Sensitivity Analysis Using Ethanol–Nahar Biodiesel Blends

International Journal of Energy Research, Volume 2026, Issue 1, 2026.
Energy is essential for performing work and vital for advancing and evolving humanity. However, conventional energy sources are nonrenewable, have finite reserves, and are geographically restricted. Therefore, it is imperative to explore alternative energy sources that are renewable, locally accessible, and produce fewer emissions.
Sameer S. Gajghate, Muhamad M. Noor, Animesh Das, Dipankar Kakati, Sudev Das, Mohd F. Ghazali, Mahendran Samykano, Sujith Kumar C. S.   +7 more
wiley   +1 more source

The autoignition of cyclopentane and cyclohexane in a shock tube

, 2007
Ignition delay times of cyclohexane-oxygen-argon and cyclopentane-oxygen-argon mixtures have been measured in a shock tube, the onset of ignition being detected by OH radical emission. Mixtures contained 0.5 or 1 % of hydrocarbon for equivalence ratios ranging from 0.5 to 2.
Sirjean, Baptiste, Buda, Frédéric, Hakka, Hichem, Glaude, Pierre-Alexandre, Fournet, René, Warth, Valérie, Battin-Leclerc, Frédérique   +6 more
openaire   +3 more sources

Green Hydrogen Pathways for Sustainable Urban Development: Infrastructure, Policy, and Sociotechnical Integration

Journal of Engineering, Volume 2026, Issue 1, 2026.
The rapid urbanization rate has put pressure on energy systems, which has led to increased greenhouse gas emissions and environmental challenges. However, the emergence of green hydrogen, which is produced using the process of electrolysis through the use of renewable energy sources, has been identified as a clean and efficient form of energy that can ...
Emmanuel Emeka Arinze, Godswill Chukwunenye Okechukwu, Somto Benjamin Anieto, Chukwuma Charles Okafor, Nwanneka Chibuzor Mmonwuba, Goodluck Ezekiel Eke, Benjamin Nnamdi Ekwueme, Joseph Chijioke Emole, David Idoko, Godswill Chinasaokwu Ndubuisi, Daniel Enechojo Akor, Izuchukwu Victor Orji, Kenneth Chibunna Ikpendu, FearGod Eze Ulu, Success Onyinyechi Lemechi, Assed Naked Haddad   +15 more
wiley   +1 more source

Exploring Isophorone‐Based Dienones: Comprehensive Insights Into Their Synthesis, Reactivity, and Diverse Applications

Journal of Chemistry, Volume 2026, Issue 1, 2026.
Isophorone is an important motif in synthetic organic chemistry, as it is highly reactive and can get involved in a diverse array of functional group transformations to access various synthetic intermediates and molecular targets. In this context, an important group of compounds is the conjugated or nonconjugated isophorone‐cored dienones, which are ...
M. Saeed Abaee, Mohammad M. Mojtahedi, Sohini Basu Roy   +2 more
wiley   +1 more source

Fuel Reactivity Controlled Autoignition and Combustion Characteristics in a Supersonic Combustor With Different Turbulence Models

International Journal of Aerospace Engineering
The choice of turbulence model significantly impacts the prediction of the supersonic combustion flow field. In this study, the transient autoignition process and steady supersonic combustion performance of methane fuel with adjustable reactivity in a ...
Zihan Wang, Qi Luo, Yifan Lv, Zuming Liu, Ziang Han, Xiaojie Li   +5 more
doaj   +1 more source

Numerical Analysis of End-Gas Autoignition and Pressure Oscillation in a Downsized SI Engine Using Large Eddy Simulation

Energies, 2019
Knock and super-knock are abnormal combustion phenomena in engines, however, they are hard to study comprehensively through optical experimental methods due to their inherent destructive nature.
Lijia Zhong, Changwen Liu
doaj   +1 more source