Results 51 to 60 of about 22,918 (184)

A Study of the Mechanism Causing Pressure Waves and Knock in an SI Engine under High-Speed and Supercharged Operation

International Journal of Automotive Engineering, 2018
In this study, knocking over a wide range of engine speeds was visualized using an optically acssessible engine. In addition, knock under a high compression ratio and supercharged, lean combustion was investigated.
Akira Iijima, Shuhei Takahata, Hiroki Kudo, Keito Agui, Masaaki Togawa, Kento Shimizu, Yuki Takamura, Mitsuaki Tanabe, Hideo Shoji   +8 more
doaj   +1 more source

On the One-dimensional Stability of Viscous Strong Detonation Waves [PDF]

, 2003
Building on Evans function techniques developed to study the stability of viscous shocks, we examine the stability of viscous strong detonation wave solutions of the reacting Navier-Stokes equations.
18, Alexander, Benzoni-Gavage, Burlioux, Campbell, Campbell, Evans, Evans, Evans, Evans, Fenichel, Fickett, Freistühler, Gardner, Gasser, Gasser, Gilbarg, Gregory Lyng, Hesaaraki, I.M. Gel’fand, Kapitula, Kasimov, Kevin Zumbrun, Lee, Li, Li, Li, Li, Li, Liu, Liu, Majda, Majda, Mascia, Mascia, Menikoff, Mundy, Roquejoffre, Serre, Serre, Shizuta, Short, Short, Short, Szepessy, Szmolyan, Tan, Weyl, Zumbrun, Zumbrun   +49 more
core   +1 more source

Detecting and modeling topography‐induced differences in plant productivity across a grassland ecosystem gradient

Ecosphere, Volume 17, Issue 2, February 2026.
Abstract Understanding spatial variation in grassland productivity is critical for ecological modeling and management. The Great Plains of North America, a vast grassland region east of the Rocky Mountains, exhibits strong gradients in aboveground net primary production (ANPP) linked to precipitation and finer scale topoedaphic variation.
Johny Arteaga, Melannie D. Hartman, William J. Parton, Yushu Xia, Jiaming Duan, Mitchell B. Stephenson, Jerry Volesky, Maosi Chen, Darrin Sharp, Jonathan Straube, Wei Gao   +10 more
wiley   +1 more source

The effect of catalyst length and downstream reactor distance on catalytic combustor performance [PDF]

A study was made to determine the effects on catalytic combustor performance which resulted from independently varying the length of a catalytic reactor and the length available for gas-phase reactions downstream of the catalyst.
Anderson, D.
core   +1 more source

Performance Evaluation of Rice Bran Oil—Waste Cooking Oil Binary Blend‐Based Biodiesel With Normal Diesel in CI Engine

Engineering Reports, Volume 8, Issue 2, February 2026.
This study evaluates the performance and emissions of CI engines using biodiesel blends derived from rice bran and waste cooking oil, revealing that a 30% biodiesel blend significantly reduces emissions, while a 70% blend affects specific engine parameters. ABSTRACT This research investigates the performance, combustion, and emission characteristics of
S. Prathap Singh, M. A. Prasanth, K. Gnanasekaran, R. Yeshwan, R. Subasriram, Abhijit Bhowmik, Nagaraj Ashok   +6 more
wiley   +1 more source

A predictive model of natural gas mixture combustion in internal combustion engines

Ingeniería e Investigación, 2007
This study shows the development of a predictive natural gas mixture combustion model for conventional com-bustion (ignition) engines. The model was based on resolving two areas; one having unburned combustion mixture and another having combustion ...
Henry Espinoza, Luís Patiño, Yordy González, Lezama Irving   +3 more
doaj  

Study of Efficient and Clean Combustion of Diesel–Natural Gas Engine at Low Loads with Concentration and Temperature Stratified Combustion

Energies
The approach for achieving efficient and clean combustion in a diesel–natural gas (NG) heavy-duty engine at low loads was studied by computational fluid dynamics simulation.
Min Zhang, Wanhua Su, Zhi Jia
doaj   +1 more source

Improvement of the turn-down ration of gas turbines by auto thermal on board syngas generation

Journal of the Global Power and Propulsion Society, 2017
The low reactivity of natural gas leads to a sudden increase of carbon monoxide (CO) and unburned hydrocarbons (UHC) emissions below a certain load level, which limits the part load operation range of current utility gas turbines in combined cycle power ...
Max Baumgärtner, Thomas Sattelmayer
doaj   +1 more source

Effect of water injection on nitric oxide emissions of a gas turbine combustor burning natural gas fuel [PDF]

The effect of direct water injection on the exhaust gas emissions of a turbojet combustor burning natural gas fuel was investigated. The results are compared with the results from similar tests using ASTM Jet-A fuel.
Diehl, L. A., Marchionna, N. R., Trout, A. M.   +2 more
core   +1 more source

Estimation of the GCV of Coal Using Real‐Time Plant Data

Energy Science &Engineering, Volume 14, Issue 2, Page 905-915, February 2026.
ABSTRACT Online or real‐time strategies of estimating the gross calorific value (GCV) of coal are still not fully explored in academic literature, even though both conventional and sophisticated offline methods for estimating the GCV are well described.
Lethukuthula Nokwazi Vilakazi, Daniel Madyira   +1 more
wiley   +1 more source