Results 11 to 20 of about 699,761 (252)

Experimental analysis and performance of refinery fuel gas on lean and rich fuel–air premixed combustion

Energy Reports, 2023
Refinery fuel gas (RFG) is a blend of gas streams produced as by-products in various refinery processes. Large amounts of RFG are burning around the clock in the air with thermal energy waste and adverse effects on the environment.
Matías Fierro, Nicolás Carmona, Mario Toledo   +2 more
doaj   +1 more source

An Experimental Study on the Combustion Characteristics of a Methane Diffusion Flame within a Confined Space under Sub-Atmospheric Pressure

Applied Sciences, 2023
Gas-fired boilers, gas stoves, and wall-mounted gas boilers are the main consumers of gas fuel, but they generally encounter problems when operating at high altitudes, such as reduced thermal efficiency and increased pollutant emissions. Previous studies
Jingkun Zhang, Yongbo Du, Siyu Zong, Nan Zhao, Yaodong Da, Lei Deng, Defu Che   +6 more
doaj   +1 more source

Research on thermal effect and thermo kinetic parameters during oxidation combustion of lean coal

Meikuang Anquan, 2021
To investigate the oxidation combustion heat effect and thermokinetic behavior of lean coal, the pulverized coal samples were tested using C80 micro caloric system and thermogravimetric experimental device, respectively.
DENG Jun, LIU Le, WANG Caiping, REN Lifeng, BAI Zujin
doaj   +1 more source

Experimental Study of Influence on Microwave Plasma Ignition Combustion Performance of Pulse Microwave Signals

IEEE Access, 2019
It has been demonstrated by a large number of studies that microwave ignition can greatly extend the lean-burn limit in the internal combustion engines. This paper investigates the influence of the pulse period and duty cycle of pulsed microwave signals ...
Zhongli Wang, Yaoyao Wang, Liang Zhu, Wendong Ma, Jiafang Shan, Fukun Liu   +5 more
doaj   +1 more source

Combustion Analysis of Ammonia Fueled High Compression Ratio SI Engine with Glow Plug and Sub-Chamber

International Journal of Automotive Engineering, 2022
Ammonia is a kind of energy carrier of hydrogen, and its use as engine fuel has been studied. However, it requires overcoming shortcomings of low combustion speed. We focus that the laminar combustion velocity of gasoline mixture with an excess air ratio
Bin Guo, Mitsuhisa Ichiyanagi, Kento Kajiki, Narumi Aratake, Qinyue Zheng, Masashi Kodaka, Takashi Suzuki   +6 more
doaj   +1 more source

Numerical investigation of the premixed V-flame stabilization and blowout [PDF]

مهندسی مکانیک شریف, 2021
Global warming and high fossil fuel consumption increase the application of the low-Nox burner with lean-premixed combustion. However, this type of combustion is more susceptible to thermoacoustic instabilities.
N. Nabatian
doaj   +1 more source

Optical Investigation of a Partial Fuel Stratification Strategy to Stabilize Overall Lean Operation of a DISI Engine Fueled with Gasoline and E30

Energies, 2021
This paper offers new insights into a partial fuel stratification (PFS) combustion strategy that has proven to be effective at stabilizing overall lean combustion in direct injection spark ignition engines.
Cinzia Tornatore, Magnus Sjöberg
doaj   +1 more source

Analysis on control factors of air-fuel ratio limit by using in-cylinder optical measurement

Nihon Kikai Gakkai ronbunshu, 2018
To increase thermal efficiency of internal combustion engine, lean burn and EGR (Exhaust Gas Recirculation) system have been developed with spark ignition coils generating larger discharge current and discharge energy than current mass production coils ...
Kazuhiro ORYOJI, Yoshihiko AKAGI, Yoshifumi UCHISE, Yuyu ZHOU, Tatsuya KUBOYAMA, Yasuo MORIYOSHI   +5 more
doaj   +1 more source

Power characteristics with different types of turbochargers for lean boosted hydrogen direct injection engine in NOx-free operation

Heliyon, 2023
Lean boosting is a low-temperature combustion technology that can contribute to the expansion of the operation range by reducing the pressure increase rate and the combustion temperature owing to the increase in the intake air amount, even though the ...
Changgi Kim, Cheolwoong Park, Yongrae Kim, Young Choi   +3 more
doaj   +1 more source

Numerical Investigation of the Chemical Effect and Inhibition Effect Improvement of C3H2F3Br (2-BTP) Using the Perfectly Stirred Reactor Model

Energies, 2018
The overall chemical rate and chemical effect of CF3Br, 2-BTP and 2-BTP/CO2 with hydrocarbon flames are calculated using the perfectly stirred reactor (PSR) model. The chemical effects of CF3Br with CH4/air flames always inhibit combustion.
Ping Li, Bo Ke, Jian Zhang, Xianfeng Chen   +3 more
doaj   +1 more source