Results 41 to 50 of about 45,053 (298)

Numerical Simulation of the Influence of CO2 on the Combustion Characteristics and NOX of Biogas

open access: yesFrontiers in Energy Research, 2022
The existence of inert gases such as N2 and CO2 in biogas will reduce the proportion of combustible components in syngas and affect the combustion and NOX formation characteristics.
Jinshuang Ma   +6 more
doaj   +1 more source

Premixed Combustion of Coconut Oil in a Hele-shaw Cell [PDF]

open access: yes, 2014
Coconut oil combustion characteristic is observed experimentally by evaporating oil in the boiler then mix it with air before being burned at various equivalence ratios in the Hele-shaw cell.
Hamidi, N. (Nurkholis)   +3 more
core   +3 more sources

Regulation of Wages and Hours Prior to 1938 [PDF]

open access: yes, 1939
Direct numerical simulations are performed to investigate the transient upstream propagation (flashback) of premixed hydrogen–air flames in the boundary layer of a fully developed turbulent channel flow.
Chen, Jacqueline H.   +3 more
core   +2 more sources

A review of laminar flame speeds of hydrogen and syngas measured from propagating spherical flames

open access: yesApplications in Energy and Combustion Science, 2020
As promising alternatives to fossil fuels, hydrogen (H2) and syngas are playing important roles in the development and control of high-efficiency, low-emission engines. Achieving accurate prediction of H2-fueled combustion requires a reliable chemical mechanism which, however, still exists considerable uncertainty.
Wang Han   +3 more
openaire   +2 more sources

Triple flames in mixing layers with nonunity Lewis numbers [PDF]

open access: yes, 1998
The present paper is devoted to the study of the effects of nonunity Lewis numbers on triple-flame propagation in nonuniform mixtures. For definiteness, the case of a strained reactive mixing layer is considered. The fuel and oxidizer that are fed to the
Daou, J., Liñán Martínez, Amable
core   +1 more source

Numerical Study on Coupled Combustion of PMMA Counter-Directional Flame Spread at Variable Slope

open access: yesFire
This paper investigates the dual effects of slope variation and flame interaction on counter-directional flame propagation through numerical simulations of polymethylmethacrylate (PMMA) plates.
Qiong Liu   +6 more
doaj   +1 more source

Dynamic behavior and flame acceleration of outwardly expanding flame in hydrogen-air mixture

open access: yesNihon Kikai Gakkai ronbunshu, 2016
From the perspective of safety, it is necessary to assess the risk of hydrogen-air deflagration accurately. Especially, flame propagation velocity is one of the most important factors.
Toshiyuki KATSUMI   +3 more
doaj   +1 more source

Generation of adverse pressure gradient in the circumferential flashback of a premixed flame [PDF]

open access: yes, 2016
Circumferential upstream propagation of a premixed flame in a region confined between two concentric tubes is considered. The cold flow in this configuration features rotational motion and the flame is modelled as an interface separating the burned and ...
Brown, Phillip   +4 more
core   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

open access: yesAdvanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar   +7 more
wiley   +1 more source

Silicified Wood‐Inspired, High‐Strength Fire‐Resistant Chitin‐Based Aerogels for Sustainable High‐Temperature Thermal Insulation

open access: yesAdvanced Functional Materials, EarlyView.
Inspired by natural silicified wood, a biomimetic mineralized chitin‐derived aerogel is constructed. It can withstand 81 000 times its own weight, and its backside temperature is 130.4°C after exposure to ∼1300°C butane flame for 600 s, exhibiting high‐strength, fire‐resistance, and super thermal‐insulation properties.
Kai Xu   +11 more
wiley   +1 more source

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