Numerical investigation of performance, combustion and emission characteristics of various biofuels

Rajak, Upendra; Nashine, Prerana; Singh, Thokchom Subhaschandra; Verma, Tikendra Nath

doi:10.1016/j.enconman.2017.11.017

Cited by 100 publications

(30 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Table 1 and 2 shows the specification of the engine and the fuel respectively. The total uncertainty of the equipments was found to be ±1.78, which can be taken as an acceptable range for experimental work [8,9].…”

Section: Methodsmentioning

confidence: 97%

Performance Characteristics of a Spark Ignited Variable Compression Ratio Engine at Erratic Loads

Banerjee¹

2018

IJRASET

View full text Add to dashboard Cite

Never ending demand for efficient and less polluting engines have always inspired newer technologies. Extensive study has been done on variable compression ratio, a promising in-cylinder technology, in the recent past. The present work is an experimental investigation to examine the variation of different parameters such as brake thermal efficiency, exhaust gas temperature and emissions with respect to change in compression ratio in a single-cylinder carbureted SI engine at different loads with two different fuels. Experiments were conducted at three different compression ratios (CR = 7.6:1, 7.8:1 and 8:1). The fuels used in this study are pure gasoline. The results showed that brake thermal efficiency increases with CR at all loads. Further, the experimental results showed the scope of improving the part-load efficiency of SI engine by adopting the concept of variable compression ratio (VCR) technology, especially when fuels with better anti-knock characteristics are used. The uncertainty analysis of the experiments based on the specifications of the equipment used is also tabulated.

show abstract

Section: Methodsmentioning

confidence: 97%

Performance Characteristics of a Spark Ignited Variable Compression Ratio Engine at Erratic Loads

Banerjee¹

2018

IJRASET

View full text Add to dashboard Cite

show abstract

“…The conservation of mass is derived based on the control volume and the corresponding differential Equation [32]. It is written as: The equations governing the fluid flow which formed the basis for simulation are the conservation of mass, momentum and energy (energy equation) [30,31]. The conservation of mass is derived based on the control volume and the corresponding differential Equation [32].…”

Section: Simulation Settingmentioning

confidence: 99%

Numerical Investigation of Fluid Flow and In-Cylinder Air Flow Characteristics for Higher Viscosity Fuel Applications

et al. 2020

View full text Add to dashboard Cite

Generally, the compression ignition (CI) engine that runs with emulsified biofuel (EB) or higher viscosity fuel experiences inferior performance and a higher emission compared to petro diesel engines. The modification is necessary to standard engine level in order to realize its application. This paper proposes a guide vane design (GVD), which needs to be installed in the intake manifold, is incorporated with shallow depth re-entrance combustion chamber (SCC) pistons. This will organize and develop proper in-cylinder airflow to promote better diffusion, evaporation and combustion processes. The model of GVD and SCC piston was designed using SolidWorks 2017; while ANSYS Fluent version 15 was utilized to run a 3D analysis of the cold flow IC engine. In this research, seven designs of GVD with the number of vanes varied from two to eight vanes (V2–V8) are used. The four-vane model (V4) has shown an excellent turbulent flow as well as swirl, tumble and cross tumble ratios in the fuel-injected region compared to other designs. This is indispensable to break up heavier fuel molecules of EB to mix with the air that will eventually improve engine performance.

show abstract

“…For example, the biogas usage in the internal combustion engine can reduce NOx emissions by more than 90% due the low combustion temperatures (Jung et al, 2015). The biodiesels have lesser ignition delay and lower soot emissions in comparison with pure diesel (Rajak et al, 2018). The oxygen content of biodiesel fuel is beneficial for improving the in-cylinder combustion, especially at high engine loads .…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis of the fuel spray packages penetration and gas inflow from quasi-dimensional di diesel engine numerical model

Mrzljak

Žarković

2019

Zb. Veleuč. Rij. (Online)

View full text Add to dashboard Cite

The paper presents two components of developed quasi-dimensional numerical model: spray package penetration and gas inflow from the zone without combustion into the spray packages. Correction of spray package penetration along the fuel spray radial axis is presented and described numerically. Numerical model simulation is validated in several measured operating points of direct injection diesel engine, after which the simulation results are presented. According to numerical model settings, each fuel spray was divided into packages (control volumes). In the same time interval, the shortest penetration was obtained for spray packages located at the fuel spray edge. Before reaching the break-up time spray package penetration was linear and after reaching the break-up time, package penetration had a curved form. Later injected spray packages quickly reached and surpassed earlier injected spray packages because earlier injected spray packages hit "gas wall" in the engine cylinder and they were "braked" with surrounding gas in comparison to packages injected later. Gas inflow from the zone without combustion into the spray packages is the most intensive for spray packages positioned at the fuel spray edge. The simulation shows that the inflow mass from the zone without combustion increases for spray packages injected later.

show abstract

Numerical investigation of performance, combustion and emission characteristics of various biofuels

Cited by 100 publications

References 55 publications

Performance Characteristics of a Spark Ignited Variable Compression Ratio Engine at Erratic Loads

Performance Characteristics of a Spark Ignited Variable Compression Ratio Engine at Erratic Loads

Numerical Investigation of Fluid Flow and In-Cylinder Air Flow Characteristics for Higher Viscosity Fuel Applications

Numerical analysis of the fuel spray packages penetration and gas inflow from quasi-dimensional di diesel engine numerical model

Contact Info

Product

Resources

About