Results 81 to 90 of about 732,470 (243)

Ignition of a rectangular solid by an external heat flux [PDF]

open access: yes, 1994
The influence of corners on the ignition of a solid exposed to a surface energy flux is analyzed with large activation energy asymptotics. We begin with the analysis of the ignition of semi-infinite wedges by a constant heat flux.
Vázquez Espí, Carlos   +1 more
core  

The Grey Zone of Stakeholder Engagement: Misalignment as a Manifestation of Greyness in Stakeholder Collaboration

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study identifies and conceptualises the grey zone of stakeholder engagement and explores how it manifests in a collaborative context related to the promotion of a circular economy. While prior research on stakeholder engagement has highlighted the positive, value‐creating bright side or the harmful dark side of stakeholder engagement, we ...
Annika Blomberg   +2 more
wiley   +1 more source

An Empirical Correlation to Predict the Ignition Delay Time for Some Hydrocarbon Fuels [PDF]

open access: yesIranian Journal of Chemical Engineering, 2016
Examination of the available ignition delay time data and correlations in the case of methane, butane, heptane, decane, kerosene, Jet-A and ethylene fuels, allowed the derivation and recommendation of standard equations for this property.
F. S. Shariatmadar   +2 more
doaj  

Inter-cycle variability of ignition delay in an ethanol\ud fumigated common rail diesel engine [PDF]

open access: yes, 2015
An experimental study has been performed to investigate the ignition delay of\ud a modern heavy-duty common-rail diesel engine run with fumigated ethanol\ud substitutions up to 40% on an energy basis.
Brown, Richard J.   +2 more
core   +1 more source

Decoding the Circular Economy Job Market in the EU: A Quantitative and Comparative Analysis

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT The circular economy (CE) is increasingly promoted as a pathway to sustainable development, yet systematic evidence on the structure of the CE labor market remains limited. Little is known about how CE‐related job opportunities are distributed across countries, which job characteristics dominate this market, and how such patterns compare with ...
Pavlos Fafalios   +2 more
wiley   +1 more source

Study on Ignition Characteristics of Microwave Radiation Ignitor

open access: yesAerospace
This study explored methods used to improve the ignition efficiency of a microwave radiation igniter; experimental analyses were conducted to characterize the device’s performance in a model combustion chamber.
Hao Zeng, Changqin Fu, Zhiyu Zhao
doaj   +1 more source

Influence of high ethane content on natural gas ignition

open access: yesRevista Ingenio, 2019
The effect of ethane on combustion and natural gas autoignition was studied in the present paper. Two fuel mixture of natural gas with high ethane content were considered, 75% CH4 – 25% C2H6 (mixture 1), and 50% CH4 – 50% C2H6 (mixture 2).
Hernando Alexander Yepes Tumay   +1 more
doaj   +1 more source

Methanol With Increased Water Content in Internal Combustion Engines

open access: yesChemie Ingenieur Technik, EarlyView.
This study investigates the potential to improve overall Well‐to‐Wheel efficiency by using low‐purity methanol from synthesis of hydrogen and furnace gas as CO2‐source. Combustion efficiency is comparable to pure methanol, while distillation energy could be saved.
Maximilian Dobberkau   +3 more
wiley   +1 more source

Laminar Burning Velocity of Ammonia‐Hydrogen Mixtures Predicted by Machine Learning

open access: yesChemie Ingenieur Technik, EarlyView.
Ammonia–hydrogen blends aid defossilization, but slow combustion kinetics require complex modeling. Although chemical kinetic modeling is computationally expensive, machine learning surrogates offer fast predictions. This study trained GPR, DT, and ANN models on 1445 experimental points.
Georg Klepp   +2 more
wiley   +1 more source

Shock tube study of JP-10 ignition delay time

open access: yes, 2007
JP-10 (exo-tetrahydrodicyclopentadiene, C10H16) ignition delay times were measured in a preheated shock tube. The vapor pressures of the JP-10 were measured directly by using a high-precision vacuum gauge, to remedy the difficulty in determining the ...
Zhang ST   +6 more
core   +1 more source

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