Results 21 to 30 of about 1,225,592 (234)

Effects of ammonia addition on the soot nanostructure and oxidation reactivity in n-heptane/toluene diffusion flames

Fuel Processing Technology
Co-firing NH3 with conventional hydrocarbon fuels is an important approach for reducing CO2 emissions in existing combustion systems. Besides CO2, the blending of NH3 would also notably affect soot formation and its oxidation behaviors.
Qing Li, Bo Tian, Lei Xu, Yu Wang
doaj   +1 more source

Supporting the regeneration process of a diesel particulate filter with the addition of hydrogen and hydrogen/carbon monoxide mixtures: diesel engine aftertreatment system [PDF]

, 2012
This thesis was submitted for the degree of Doctor of Philosophy and was awarded by Brunel UniversityThis investigation aims to enhance the regeneration performance of a diesel particulate filter.
Hemmings, Stephen
core   +7 more sources

Hydrogen energy share threshold for stable ultra-lean combustion in hydrogen–gasoline spark-ignition engines

Fuel Processing Technology
Hydrogen enrichment of gasoline in spark-ignition engines represents a promising pathway for improving combustion stability and extending lean-burn operating limits while reducing harmful emissions. However, the quantitative relationship between hydrogen
Michal Puškár, Melichar Kopas
doaj   +1 more source

Simulation Study on Combustion Performance of Ammonia-Hydrogen Fuel Engines

Energies
Ammonia is a very promising alternative fuel for internal combustion engines, but there are some disadvantages, such as difficulty in ignition and slow combustion rate when ammonia is used alone.
Duanzheng Zhao, Wenzhi Gao, Yuhuai Li, Zhen Fu, Xinyu Hua, Yuxuan Zhang   +5 more
doaj   +1 more source

Unsteady Combustion of the Heptane-in-Water Emulsion Foamed with Hydrogen–Oxygen Mixture

Applied Sciences, 2023
This research paper numerically studies how hydrocarbon additives affect hydrogen combustion in the process of complex fuel burning on the example of the combustible foam representing the heptane-in-water emulsion foamed with a hydrogen–oxygen mixture ...
Alexey Kiverin, Ivan Yakovenko
doaj   +1 more source

A Review on Combustion Instability of Hydrogen-Enriched Marine Gas Turbines

Journal of Marine Science and Engineering
Hydrogen is widely regarded as a promising carbon-free alternative fuel. However, the development of low-emission marine gas turbine combustion systems has been hindered by the associated risks of combustion instability, also termed as thermoacoustic ...
Jiaying Cheng, Bin Hu, Zhilin Zeng, Jinhai Fu, Boyang Zhang   +4 more
doaj   +1 more source

Numerical Simulation of Combustion of Natural Gas Mixed with Hydrogen in Gas Boilers

Energies, 2021
Hydrogen mixed natural gas for combustion can improve combustion characteristics and reduce carbon emission, which has important engineering application value.
Yue Xin, Ke Wang, Yindi Zhang, Fanjin Zeng, Xiang He, Shadrack Adjei Takyi, Paitoon Tontiwachwuthikul   +6 more
doaj   +1 more source

Very-large eddy simulation of blended methane/hydrogen jet flame

Hangkong gongcheng jinzhan
As a new type of combustion, hydrogen-enriched combustion has high potential for the application of the decarbonization in power equipment. In the present study, an adaptive very-large eddy simulation(VLES) method based on the k-ε model is developed ...
FAN Xiaojing, CHEN Tao, HAN Xingsi, WANG Longfei   +3 more
doaj   +1 more source

Microstructure Modification of Additively Manufactured Mo–9Si–8B by Annealing and Its Effects on High‐Temperature Mechanical Properties

Advanced Engineering Materials, EarlyView.
Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt, Yong Chen, Georg Hasemann, Benjamin Wahlmann, Carolin Körner, Manja Krüger   +5 more
wiley   +1 more source

Kinetic Characterization and NOx Reduction Mechanism of Mixed Ammonia-Hydrogen Combustion in Cyclone Combustor

发电技术
ObjectiveAmmonia plays a key role in achieving the “dual carbon” goal, but ammonia has a low combustion rate and high NOx emission. In order to improve the combustion rate, a method of ammonia-hydrogen blending combustion was proposed.MethodsThe combined
WANG Kaihui, LIU Bin, ZHE Xiaohui, LIU Wei, FAN Hao, KANG Zongyao, XU Li   +6 more
doaj   +1 more source