Results 51 to 60 of about 23,690 (234)

Sustainable Optimization of Emissions and Performance in Hydrogen Port Injection Diesel Engines Through Port Timing and Injection Duration Modulation

Energy Science &Engineering, EarlyView.
Optimizing hydrogen port injection in diesel engines significantly improves efficiency and reduces emissions, demonstrating a sustainable dual‐fuel strategy for cleaner transportation solutions and lower environmental impact. ABSTRACT This study evaluates a single‐cylinder hydrogen port injection (HPFI) Diesel engine by systematically varying the ...
Kaustubh R. Kapadani, Nithyananda B S, Shrishail B. Sollapur, Rajesh K, Ashish M. Dharme, Hemant K, Nagaraj Ashok, Abhijit Bhowmik   +7 more
wiley   +1 more source

Flame morphology and laminar flame assessments affected by flames interaction using multi-ignition sources of NH3/H2-air flames

Applications in Energy and Combustion Science
A detailed assessment of flame–flame interaction and laminar flame evolution using multi-ignition sources is experimentally studied. To understand the flame interaction, the centrally ignited flame is measured and calculated for comparison with multi ...
Ahmed Yasiry, Jinhua Wang, Hongchao Dai, Xiao Cai, Ahmed A.A. Abdulraheem, Saba Y. Ahmed, Haroun A.K. Shahad, Zuohua Huang   +7 more
doaj   +1 more source

Experimental assessment of the impact of variation in jet fuel properties on spray flame liftoff height

Applications in Energy and Combustion Science, 2021
Ensuring efficient and clean combustion performance of liquid-fueled engines requires comprehension of the influence of fuel composition and properties on flame behavior, such as flame liftoff height (LOH) and lean blowout limit (LBO).
Radi Alsulami, Stephen Lucas, Brye Windell, Mitchell Hageman, Bret Windom   +4 more
doaj   +1 more source

Type Ia Supernova: Burning and Detonation in the Distributed Regime

, 2007
A simple, semi-analytic representation is developed for nuclear burning in Type Ia supernovae in the special case where turbulent eddies completely disrupt the flame. The speed and width of the ``distributed'' flame front are derived.
Damkohler G., Ropke F., S. E. Woosley
core   +1 more source

Multiobjective Optimization of Hydrogen‐Assisted Calophyllum inophyllum Biodiesel Operation in a Compression Ignition Engine

Energy Science &Engineering, EarlyView.
Tri‐fuel diesel–Calophyllum inophyllum biodiesel–hydrogen operation was tested over 96 points in a diesel engine. Eight performance and emission metrics feed a preference‐agnostic Bootstrapped Empirical Multiobjective Ranking and Selection methodology, revealing load‐blend‐hydrogen windows that increase efficiency, restrain smoke, and expose NOx trade ...
C. Naga Kumar, Nageswara Rao Dayadi, J. M. Babu, Srinivasa Reddy Yarram, Ravikiran Chintalapudi, Bridjesh Pappula   +5 more
wiley   +1 more source

An Experimental Measurement on Laminar Burning Velocities and Markstein Length of Iso-Butane-Air Mixtures at Ambient Conditions

MATEC Web of Conferences, 2016
In the present work, experimental investigation on laminar combustion of iso-butane-air mixtures was conducted in constant volume explosion vessel. The experiments were conducted at wide range of equivalence ratios ranging between Ф = 0.6 and 1.4 and ...
Yousif Alaeldeen Altag, Sulaiman Shaharin A., Nasif Mohammad Shakir   +2 more
doaj   +1 more source

Type Ia Supernova Explosion Models: Homogeneity versus Diversity [PDF]

, 2000
Type Ia supernovae (SN Ia) are generally believed to be the result of the thermonuclear disruption of Chandrasekhar-mass carbon-oxygen white dwarfs, mainly because such thermonuclear explosions can account for the right amount of Ni-56, which is needed ...
Hillebrandt, W., Niemeyer, J. C., Reinecke, M.   +2 more
core   +3 more sources

Hybrid Oxygen Enrichment and Preheating Strategy for Performance Recovery in Ultra‐Lean Micro–Trapped Vortex Combustors

Energy Science &Engineering, EarlyView.
Ultra‐lean H2 micro‐combustor performance is boosted through regulated O2 enrichment and inlet preheating. A 16‐case Taguchi study (ϕ = 0.3) shows: controlled enrichment and heating increase radiative output and efficiency, but excessive O2/temperature causes flashback.
Anouar Benzitouni, Abdelhakim Settar, Boudinar Naouam, Salaheddine Azzouz, Zakaria Mansouri   +4 more
wiley   +1 more source

EFFECT OF OXYGEN ENRICHMENT UPON LAMINAR BURNING VELOCITY OF (BUTANE – O2 – N2) MIXTURE

Journal of Engineering and Sustainable Development, 2016
The effect of oxygen enrichment on the laminar flame speed of (butane – oxygen – nitrogen) premixed mixture. The measurement system is designed to measure the laminar flame speed using a tube – method and optical technique (photodiode).The laminar flame
Fouad A. Saleh, Shaymaa Y. Ibrahim
doaj  

Role of pocket formation in the extinction of methane flames subject to strong turbulence

Applications in Energy and Combustion Science
Despite extensive studies of local and global extinction, it remains unclear how local flame dynamics contribute to the global evolution of a turbulent flame at large Karlovitz numbers. Furthermore, the extent to which canonical laminar flame properties,
Patrick A. Meagher, Samuel Calello, III, Xinyu Zhao   +2 more
doaj   +1 more source