Thermodynamic Performance of an Engine by Modifying Piston Bowl Geometries Fuelled by SME-100, LA-100, KB-100 Biodiesel Blends, and Diesel

Pathak, Bhavesh; Patel, Nikul

doi:10.37934/arfmts.102.1.113

Cited by 6 publications

(4 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Bowl geometry has a measurable effect on performance and emission metrics. Many academics have been working on combustion chamber geometry designs using diverse fuels as an intake for a long duration [85]. As a result, the combustion chamber shape is classified as a single curve or double curve [86].…”

Section: Geometry/ Shape Of Chambermentioning

confidence: 99%

Effect of modifying bowl geometry for IC engine fueled with diesel and Biofuels - Review

PATHAK,

PATEL

2024

Journal of Thermal Engineering

View full text Add to dashboard Cite

Bio-fuels are one of the most prominent, emerging, and promising fuels, which are aimed to replace diesel in the next decade. Though bio-fuels may not give the same performance as conventional diesel due to certain issues related to both technical and economic aspects, this fact leads to the need for alterations that are supposed to incorporate either changes in the shape of the combustion chamber or other critical factors that affect the performance of the engine. The shape of the top surface, which is known as the "bowl," in the piston plays a major role, and any slight modification in that shape leads to amplified effects on various combustion, emission, and performance parameters. This article shows the valid reason for accepting bio-fuels as fuel for CI engines by considering outcomes derived from experiments and numerical analysis with changes in the shape of the piston bowl. The results obtained are based on the attainment of various parameters, which leads to higher turbulence velocity distribution, better mixture fraction values, and lower soot formation distribution that can be obtained by modifying the shape of bowl. The pressure, temperature and heat release in the combustion chamber found to be changed due to the modification in bowl geometry.

show abstract

Section: Geometry/ Shape Of Chambermentioning

confidence: 99%

Effect of modifying bowl geometry for IC engine fueled with diesel and Biofuels - Review

PATHAK,

PATEL

2024

Journal of Thermal Engineering

View full text Add to dashboard Cite

show abstract

“…Squish and swirl components of any turbulent flow help to improve the air-fuel mixture in general. At the premix stage or before ignition if somehow one can develop squish and swirl proper mixing at this stage can be achieved and that can improve combustion characteristics [67]. The geometry formed by the cylinder head and top surface of the piston also called as piston crown or piston bowl has an impact on a generation of squish and swirl which in the end is proven to improve ignition characteristics.…”

Section: Effect Of Varying Crown or Bowl Shapementioning

confidence: 99%

Review Analysis on CFD Techniques and Numerical Methods for IC Engines Fueled with Diesel and Biofuels

Bhavesh Pathak,

Asfakahemad Shekh,

Nikul Patel

et al. 2023

ARFMTS

View full text Add to dashboard Cite

Over the years, there has been a drastic reduction in petroleum-based fuel stocks and stringent emission requirements for internal combustion engines by environmental authorities around the world. A marginal improvement in efficiency and emissions shows significant benefits. Fluid motion within the combustion chamber plays a vital role and is considered a crucial parameter for controlling the combustion process. The fuel supply system or induction system of the Spark Ignited engine prepares and controls air-fuel mixing. The system in the SI engine is capable of generating bulk motion and turbulence prior to the ignition process. In the CI engine Induction system (Swirl and Tumble), the shape of the chamber (Squish) controls the path and quality of air whereas the diesel injection system controls Spray characteristics (Penetration, Atomization, Break-up, and Evaporation of Spray). During the last three decades, a lot of efforts have been made by researchers to develop multidimensional fluid dynamics codes for the prediction of flow in an engine for reducing engine development time and cost. To be a more trusted and acceptable tool, the results of numerical analysis of the combustion chamber. and its fluid dynamics have to show accuracy in the prediction of emission standards and combustion parameters by taking the minimum possible time. This article reviews the methods and results of numerical analysis and CFD results of CI engines run on diesel and biofuels. It also reviews results and their accuracy for different CFD.

show abstract

“…Three-dimensional numerical simulations enhance understanding of complex physical and chemical processes during in-cylinder flow and combustion in internal combustion engines [7,8]. These simulations reveal the influence of combustion system parameters on the combustion process and emissions [9][10][11].…”

Section: Introductionmentioning

confidence: 96%

Numerical Simulation on the Spray Angle of the Dual-layer Hole Nozzle in a Partition Combustion System of the Diesel Engine

Lu Hongkun,

Muhamad Mat Noor,

Li Li

et al. 2024

ARNHT

View full text Add to dashboard Cite

To study the effect of the spray angles of the dual-layer hole nozzle on the combustion and emissions performance in the partition combustion system, the in-cylinder spray, mixture formation and combustion processes of the new combustion system were simulated and investigated using AVL FIRE software. The results show that, compared with the variation of the lower-layer spray angles, the change of the upper-layer spray angles has a great influence on the instantaneous heat release rate. The increasing spray angles of the lower-layer holes lead to reduced peak values of the heat release rate in the cylinder. In all the spray angle cases, the first fire area of the cylinder is in the B zone of the combustion chamber. Compared with lower-layer spray angle, the upper-layer spray angle has a greater impact on the airflow disturbance in the combustion chamber. Appropriately increasing the upper-layer spray angle facilitates the mixing of fuel and air in the combustion chamber and reduces the unburnt fuel equivalence ratio. When the spray angles of the upper- and lower-layer holes are 157° and 112°, respectively, the combustion indicates power has the largest value of 12.18 kW. At the same time, the Soot emission is also the smallest, with a value of 0.52 g/kW·h.

show abstract

Thermodynamic Performance of an Engine by Modifying Piston Bowl Geometries Fuelled by SME-100, LA-100, KB-100 Biodiesel Blends, and Diesel

Cited by 6 publications

References 26 publications

Effect of modifying bowl geometry for IC engine fueled with diesel and Biofuels - Review

Effect of modifying bowl geometry for IC engine fueled with diesel and Biofuels - Review

Review Analysis on CFD Techniques and Numerical Methods for IC Engines Fueled with Diesel and Biofuels

Numerical Simulation on the Spray Angle of the Dual-layer Hole Nozzle in a Partition Combustion System of the Diesel Engine

Contact Info

Product

Resources

About