Results 211 to 220 of about 14,148 (264)
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Effects of equivalence ratio and blending ratio on the ignition delays of n-pentane/hydrogen mixtures under engine relevant pressure

Fuel, 2021
Abstract In this work, new ignition delay times of n-pentane/hydrogen binary mixtures were measured at a pressure of 20 atm, equivalence ratios of 0.5, 1.0, and 2.0 using a shock tube. Literature Pentane Isomer model is found to well capture the ignition delay times of n-pentane/hydrogen mixtures under the current condition.
Xue Jiang, Rui Zhang, Fuquan Deng
openaire   +1 more source

Comparative study on combustion and emission characteristics of methanol/hydrogen, ethanol/hydrogen and methane/hydrogen blends in high compression ratio SI engine

Fuel, 2020
Abstract Currently, alternative energy sources such as hydrogen and alcohol are increasingly used in IC engines. There is a gap in the literature of both experimental and numerical studies considering hydrogen addition in a high compression ratio engine (using methanol/hydrogen, ethanol/hydrogen and methane/hydrogen blends). Therefore, in this study,
Xudong Zhen   +4 more
openaire   +1 more source

Effect of different hydrogen blending ratios on combustion process of gasoline‐fueled rotary engine

Environmental Progress & Sustainable Energy, 2019
The pre‐eminent gasoline rotary engine may be criticized for its unsatisfactory fuel consumption rate and unburnt emissions. The clean and renewable hydrogen fuel is a promising alternative for conventional fuels to improve the combustion process and power performance of the rotary engine.
Jianfeng Pan   +5 more
openaire   +1 more source

Experimental determination of minimum ignition current (MIC) ratio of hydrogen/methane (H 2 NG) blends up to 20 vol.% of hydrogen

Process Safety and Environmental Protection, 2017
In the context of planning a decarburization of the European Union energy sector, in order toreach a reduction of carbon emissions up to 95% by 2050, several studies on the compatibilityof the existing gas networks with blends of natural gas/hydrogen up to 20% of hydrogen havebeen tested in industrial scale projects.
Janes, Agnès   +3 more
openaire   +3 more sources

Prediction and measurement of the critical compression ratio and methane number for blends of biogas with methane, propane and hydrogen

Fuel, 2016
Abstract Methane number (MN) and the critical compression ratio (CCR) measurements for twelve blends of biogas with methane or propane and hydrogen additions were taken in a Cooperative Fuel Research (CFR) F2 model engine according to the standard. In addition, CHEMKIN simulations of MN and the CCR were performed on these blends at similar conditions
Juan Pablo Gómez Montoya   +2 more
openaire   +1 more source

Power output characteristics of hydrogen-natural gas blend fuel engine at different compression ratios

International Journal of Hydrogen Energy, 2012
Abstract Potential and knocking characteristics of a hydrogen-natural gas blend (HCNG) engine with a high compression ratio were examined from a commercial viewpoint since lean combustion with HCNG under a wide-open throttle (WOT) condition requires a high-charging-capacity turbocharger.
Cheolwoong Park, Changgi Kim, Young Choi
openaire   +1 more source

Optimization on Ignition Timing and EGR Ratio of a Spark-Ignition Engine Fuelled with Natural Gas-Hydrogen Blends

SAE Technical Paper Series, 2011
<div class="section abstract"><div class="htmlview paragraph">In this paper, 20%H₂ (20% hydrogen in natural gas-hydrogen blends, by volume) is selected as the test fuel, and the ignition timing and EGR ratio are adjusted to optimize the performance, combustion, and emissions of a natural gas-hydrogen engine. An experimental investigation on
Erjiang Hu, Zuohua Huang
openaire   +1 more source

Effects of hydrogen blending ratio and leakage pressure on the release, transport and delayed ignition consequences of buried hydrogen-blended natural gas pipeline leakage: full-scale experimental

The continuous evolution from subsurface leakage to surface accumulation, delayed ignition and post-ignition consequences of buried hydrogen-blended natural gas (HBNG) pipeline leakage remains insufficiently understood, particularly under full-scale conditions.
Wenxin Guo   +3 more
openaire   +1 more source

Hydrogen Blending in Gas Pipeline Networks—A Review

Energies, 2022
Devinder Mahajan   +2 more
exaly  

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