Results 51 to 60 of about 159 (130)

The mechanism and effect factors of the combustion cycle‐to‐cycle variations in the spark ignition engine

Energy Science &Engineering, Volume 12, Issue 10, Page 4773-4787, October 2024.
The authors comprehensively reviewed the fundamental reasons and mechanism of cycle‐to‐cycle variations (CCVs) of a spark ignition (SI) engine. In addition, the characteristic parameters and characterization methods of the CCV, the laws and influencing factors of the CCV, and the numerical simulation methods of the CCV were introduced in detail to ...
Xiongbo Duan, Lining Feng, Yan Xia
wiley   +1 more source

Effect of Syngas Composition on the Combustion and Emissions Characteristics of a Syngas/Diesel RCCI Engine

Energies, 2020
Reactivity controlled compression ignition (RCCI) strategy uses two different fuels with different reactivities which provides more control over the combustion process and has the potential to dramatically lower combustion temperature and NOX and PM ...
Navid Kousheshi, Mortaza Yari, Amin Paykani, Ali Saberi Mehr, German F. de la Fuente   +4 more
doaj   +1 more source

A comparative study of the impact on combustion and emission characteristics of nanoparticle‐based fuel additives in the internal combustion engine

Energy Science &Engineering, Volume 12, Issue 1, Page 284-303, January 2024.
Methodology and results overview: With the purpose of enhancing the efficiency and reducing the emissions of an internal combustion engine, the paper studies various nanoadditives that are used with the conventional fuel. From the analysis of the data available, it was observed that graphene and ceria demonstrated significant improvement in the ...
Aveek Gupta, Ravinder Kumar, Ashish Maurya, Mohammad H. Ahmadi, Bulbul Ongar, Anara Yegzekova, Jeet Prakash Sharma, Sumit Kanchan, Sagar Shelare   +8 more
wiley   +1 more source

Optimization of Performance and Emissions of RCCI Engine at Various Speed Conditions Using Response Surface Methodology Technique

Ethiopian Journal of Science and Sustainable Development
The demand for reduction of greenhouse gases and the implementation of stringent emission regulations have compelled researchers and engine makers to look for alternative approaches of increasing efficiency from the internal combustion engine.
Negasa Tesfaye Tefera, Ramesh Babu Nallamothu, Getachew Alemayehu   +2 more
doaj   +1 more source

Study on the Combustion and Emission Characteristic of a Heavy‐Duty Natural Gas/Ammonia RCCI Engine with Diesel Ignition

International Journal of Energy Research, Volume 2024, Issue 1, 2024.
As a carrier of hydrogen, ammonia has great potential in reducing pollution and carbon. This paper investigates the impact of diesel compression ignition on the combustion and emission performance of a natural gas/ammonia mixture RCCI engine through numerical simulation. The energy fraction of ammonia is set from 0% to 100% in the study to evaluate the
Weijian Zhou, Hongnan Wang, Song Zhou, Majed Shreka, Geng Chen   +4 more
wiley   +1 more source

A Detailed Study of Boost Pressure and Injection Timing on an RCCI Engine Map Fueled with Iso-Octane and N-Heptane Fuels

Journal of Applied Fluid Mechanics, 2019
By using two types of different fuels and changing the ratios of these fuels, Reactivity Controlled Compression Ignition Engine (RCCI) is able to provide a more effective control over combustion phase at different loads and speeds.
H. R. Fajri, A. H. Shamekhi, S. Rezaie, M. J. Jafari, S. A. Jazayeri   +4 more
doaj  

Response Analysis of an Experimental Study on the Effect of Speed and Premixed Fuel Ratio on Performance and Emissions in RCCI Engine

International Journal of Chemical Engineering, Volume 2024, Issue 1, 2024.
Even though CI engines are more efficient than SI engines due to their ability to operate at a greater compression ratio, a leaner charge, and lower throttle losses, they have higher PM and nitrogen oxide emissions. The induction system modification with fuel port injection is used as a parameter in RCCI engine operations for controlling emission ...
Habtamu Deresso Disassa, Venkata Ramayya Ancha, Ramesh Babu Nallamothu, Bisrat Yoseph, Getachew Alemayehu, Yanqing Niu   +5 more
wiley   +1 more source

Split injection timing optimization in ammonia/biodiesel powered by RCCI engine

Results in Engineering
Employing carbon-neutral (NH3) and low carbon footprint (biodiesel) fuels in Reactivity Controlled Compression Ignition (RCCI) engine mode is one possible method for minimizing carbon emissions in diesel engines. In this study, a Compression Ignition (CI)
Elumalai Pv, Krishnaiah Ravi, Ramachandran Elumalai, Chan Choon Kit, Suresh Kumar K, Krishnasamy Karthik, M. Satyanarayana Gupta, Mohammad Asif   +7 more
doaj   +1 more source

Analyzing the Effect of Variable Transportation Load on CO2 Emissions in Distribution Networks

Modelling and Simulation in Engineering, Volume 2024, Issue 1, 2024.
The global supply chain relies on road, land, and air transport, significantly contributing to greenhouse gas emissions. Various measures have been proposed to reduce these emissions, including energy taxes, environmentally friendly vehicles, and optimized transportation loads.
Santiago-Omar Caballero-Morales, Irma-Delia Rojas-Cuevas, Chao Bao   +2 more
wiley   +1 more source

Numerical Study of Natural Gas/Diesel Reactivity Controlled Compression Ignition Combustion with Large Eddy Simulation and Reynolds-Averaged Navier–Stokes Model

Fluids, 2018
In the current study, a comparative study is performed using Large Eddy Simulation (LES) and Reynolds-averaged Navier–Stokes (RANS) turbulence models on a natural gas/diesel Reactivity Controlled Compression Ignition (RCCI) engine.
Amir-Hasan Kakaee, Parvaneh Jafari, Amin Paykani   +2 more
doaj   +1 more source