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Keywords: natural gas
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Proceedings Papers

Proc. ASME. ICEF2024, ASME 2024 ICE Forward Conference, V001T02A007, October 20–23, 2024
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2024-140624
... gas engines have many advantages like near zero soot emissions, lower CO 2 emissions, lower operating cost, quieter operation, and domestic natural gas availability. Natural engines can operate at stoichiometric air fuel ratio and allow for the use of cost effective three-way catalytic converter...
Proceedings Papers

Proc. ASME. ICEF2023, ASME 2023 ICE Forward Conference, V001T02A005, October 8–11, 2023
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2023-109918
..., as its slow reaction kinetics offset that of H2 without compromising decarbonization efforts. However, simply replacing natural gas (primarily methane, CH4) with hydrogen/ammonia blends is not trivial due to compatibility issues associated with bulk combustion characteristics. In this study, methane...
Proceedings Papers

Proc. ASME. ICEF2023, ASME 2023 ICE Forward Conference, V001T03A010, October 8–11, 2023
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2023-110482
...Proceedings of the ASME 2023 ICE Forward Conference ICEF2023 October 8-11, 2023, Pittsburgh, Pennsylvania ICEF2023-110482 OPTIMIZATION OF THE COMBUSTION CHAMBER DESIGN OF A NATURAL GAS-DIESEL DUAL FUEL ENGINE RUNNING AT LOW LOAD Francesco Scrignoli1, Tommaso Savioli2, Carlo Alberto Rinaldini1...
Proceedings Papers

Proc. ASME. ICEF2022, ASME 2022 ICE Forward Conference, V001T03A012, October 16–19, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2022-90926
... Abstract Conventional dual-fuel combustion (DFC) has been studied for decades due to its ability to produce high fuel conversion efficiency and its potential to defeat the well-known diesel NOx-PM trade-off. In DFC, a low-reactivity fuel (LRF) such as natural gas is premixed with air...
Proceedings Papers

Proc. ASME. ICEF2022, ASME 2022 ICE Forward Conference, V001T03A002, October 16–19, 2022
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2022-88543
... the fundamental rovibrational absorption lines of carbon monoxide and nitric oxide near 5 μm in wavelength. The sensor module was integrated into a commercial EPA-certified natural gas spark-ignition generator operated at 3,300 rpm for measurements of exhaust pulse temperature, CO, and NO concentrations at a rate...
Proceedings Papers

Proc. ASME. ICEF2020, ASME 2020 Internal Combustion Engine Division Fall Technical Conference, V001T01A004, November 4–6, 2020
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2020-2949
... with high methane content. Relative to natural gas-fueled engines, the power densities of premixed or port-fuel-injected hydrogen engines are limited due to low volumetric efficiencies and moreover by occurring irregular combustion events (knocking, backfire). The paper presents results from experimental...
Proceedings Papers

Proc. ASME. ICEF2019, ASME 2019 Internal Combustion Engine Division Fall Technical Conference, V001T03A005, October 20–23, 2019
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2019-7159
... Abstract Natural gas is known as a relatively clean fossil fuel due to its low carbon to hydrogen ratio compared to other transportation fuels, which yields a reduction of carbon monoxide, carbon dioxide, and unburned hydrocarbons emissions. However, it has a low cetane number, which makes...
Proceedings Papers

Proc. ASME. ICEF2019, ASME 2019 Internal Combustion Engine Division Fall Technical Conference, V001T02A006, October 20–23, 2019
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2019-7169
... Abstract Exhaust gas recirculation (EGR) in spark-ignited engines is a key technique to reduce in-cylinder NOx production by decreasing the combustion temperature. The major species of the exhaust gas in rich combustion of natural gas are hydrogen and carbon monoxide, which can subsequently...
Proceedings Papers

Proc. ASME. ICEF2009, ASME 2009 Internal Combustion Engine Division Fall Technical Conference, 127-135, September 27–30, 2009
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2009-14084
... 08 07 2010 Homogenous Charge Compression Ignition (HCCI) combustion is a promising concept to reduce engine emissions and fuel consumption. In this paper, a thermo-kinetic model is developed to study the operating characteristics of a natural gas HCCI engine. The zero-dimensional...
Proceedings Papers

Proc. ASME. ICEF2005, ASME 2005 Internal Combustion Engine Division Fall Technical Conference (ICEF2005), 405-413, September 11–14, 2005
Publisher: American Society of Mechanical Engineers
Paper No: ICEF2005-1307
... 19 11 2008 CFD Modeling of the injection, the mixing, the combustion and the emission formation processes in a high pressure direct injection (HPDI) natural gas engine is presented in this paper. KIVA3V was used together with an injector model. Two sub-models had been developed...