Engine Downsizing; Global Approach to Reduce Emissions: A World-Wide Review

Namar, Mohammad Mostafa; Jahanian, Omid; Shafaghat, Rouzbeh; Nikzadfar, Kamyar

doi:10.28991/hij-2021-02-04-010

Cited by 16 publications

(5 citation statements)

References 123 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Extended works have been carried out by researchers to have more efficient and cleaner engines [6][7][8]. These efforts contain a vast variety of approaches from engine design [9,10] to fuel development [11,12] and combustion control [13,14].…”

Section: Recent Trendmentioning

confidence: 99%

Artificial Intelligence in Diesel Engines

Koten,

Mostafa Namar

2024

Diesel Engines - Current Challenges and Future Perspectives

View full text Add to dashboard Cite

The use of artificial intelligence in different parts of human life is becoming inevitable and it is expected that in the near future, the range of artificial intelligence applications will include all service, industrial, research, and educational activities. Providing a solution or performance enhancement in research and industrial activities, considering that these activities contain lots of dependent parameters with formulated/non-formulated correlations, is always a challenge for researchers. The recent approach of researchers in using statistical data and applying techniques based on artificial intelligence is a promising solution that provides the desired answers more quickly and accurately. The automobile industry and internal combustion engines have also benefited from the advantages of artificial intelligence in order to improve their performance and efficiency. Among the most important developments and achievements of this approach, we can mention real-time modeling, optimization and intelligent control, new fuel combinations, fault detection systems, and self-driving vehicles. Therefore, in this chapter, the recent research and industrial achievements of diesel engines due to the use of artificial intelligence techniques will be discussed.

show abstract

Section: Recent Trendmentioning

confidence: 99%

Artificial Intelligence in Diesel Engines

Koten,

Mostafa Namar

2024

Diesel Engines - Current Challenges and Future Perspectives

View full text Add to dashboard Cite

show abstract

“…This requires aggressive electrification of vehicles, improved efficiency of internal combustion engines, and transitioning to lower carbon neutral fuels. For internal combustion engines, strategies like engine downsizing, 3 combustion optimization, 4 and electrification 5 can reduce fuel consumption and CO 2 emissions from conventional fossil fuel-powered vehicles in the near term.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Port Water Injection on GDI Engine Fuel Economics and Emissions

Zhang,

Huang,

Wang

et al. 2024

ACS Omega

View full text Add to dashboard Cite

This experimental study investigates the impact of water injection into intake ports on combustion and emissions in gasoline engines. It also examines particle size distribution at various water-to-fuel ratios and explores the combined effects of water injection and compression ratios in gasoline engines. The results indicate that water injection effectively mitigates engine knock, reduces peak firing pressures, and moderates heat release rates through charge cooling. Advancing ignition timing with water injection advances combustion, resulting in reduced specific fuel consumption, particularly under moderate load conditions. Water injection lowers NOx emissions by reducing combustion temperatures but increases unburned THC emissions due to inhibited oxidation reaction rates. Minor effects were observed on CO emissions. Furthermore, particle numbers were significantly reduced with water injection, particularly in the nucleation mode particles. The simultaneous application of a higher compression ratio and water injection yields substantial improvements in fuel consumption with minimal impact on NOx and THC emissions.

show abstract

“…Nowadays, fuel economy and cleaner production are two key factors in developed engines as well as conventional performance parameters such as power-to-weight ratio, maximum provided torque range, and Brake Mean Effective Pressure (BMEP) [1][2]. In addition to the well-known emissions, the greenhouse gases, especially 𝐶𝑂 2 , are now considered to be reduced as the main source of global warming in the automotive industry [3][4]. Although a wide range of strategies [5][6] has been employed to achieve this aim, engine downsizing is considered as the most efficient way to enhance the fuel economy and 𝐶𝑂 2 reduction.…”

Section: Introductionmentioning

confidence: 99%

The comparative performance study of the EF7 downsized engines; fuel economy besides CO2 reduction

Namar,

Jahanian,

Nikzadfar

et al. 2024

futech

View full text Add to dashboard Cite

Engine downsizing is considered a strategic idea in fuel economy enhancement as well as reduction. It is defined in the literature as the decrease in engine geometrical dimensions besides its performance being fixed. In this research, the Iranian gasoline-fueled national engine, EF7, has been investigated for 25% downsizing. After introducing the gasoline-fueled and CNG-fueled versions of downsized engines, their performance, besides release rates are studied in detail. A one-dimensional engine simulator coupled with a 3D-CFD model is developed to carry out such an investigation, an experimental test setup is provided to evaluate the accuracy of the provided numerical model, as well. The first version of presented downsized engines, called EF7, is a 3-cylinder engine with the same geometrical characteristics as the base engine, which is equipped with a turbo-charger and dual CVVT technologies. The EF7 is then introduced by fuel shifting to CNG as the second version of downsized engines, and finally, increasing the compression ratio, the EF7 is presented as the third version of studied-downsized engines. The results show almost the same rate of BSFC besides a 3.4% reduction in concentration for EF7, 20.6% fuel economy enhancement, besides 20.8% reduction in the specific release rate for EF7, and 28.8% fuel economy enhancement, besides 25.3% reduction in the specific release rate for EF7 in comparison with the base engine.

show abstract

Engine Downsizing; Global Approach to Reduce Emissions: A World-Wide Review

Cited by 16 publications

References 123 publications

Artificial Intelligence in Diesel Engines

Artificial Intelligence in Diesel Engines

Experimental Study of Port Water Injection on GDI Engine Fuel Economics and Emissions

The comparative performance study of the EF7 downsized engines; fuel economy besides CO2 reduction

Contact Info

Product

Resources

About