The Combined Effect of the Piston Bowl Geometry and Injection Fuel Pressure on the Compression Ignition Engine Characteristics

Al‐Abboodi, Nhad K. Frhan

doi:10.37934/cfdl.14.8.4362

Cited by 3 publications

(3 citation statements)

References 37 publications

(45 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Whereas the double injection scheme, the 1st pulse at 23° before TDC prepared appropriate condition for igniting the 2nd pulse which it injected close to the TDC. At this stage, the developed gas temperature will be higher, leading to improved fuel and oxygen reaction and a decrease in SFC 20 . Moreover, at the start of 1st pulse, injection was at 23° before TDC.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Combined effect of multi‐injection scheme, injector nozzle bore, and biodiesel blends on combustion and performance characteristics of diesel engine

Al‐Abboodi

Al-Waaly

2023

Heat Trans

View full text Add to dashboard Cite

Many researchers have conducted extensive experimental and numerical studies to explore the influences of multiple types of fuels. The high demand of energy in the world has led to the growing crisis and depletion of fossil fuels. Therefore, the researchers have focused on investigating renewable energy sources like biodiesel with the aim of suggesting, which energy is more friendly to the environment. Biodiesel has specifications for using it as an alternative fuel to traditional fossil fuels. Whereas, the use of biodiesel fuel in the original design of Diesel engine can emit a higher percentage of nitrogen oxides (NOx). Therefore, to reduce the harmful emissions of the fuel, the injection schemes and injector nozzle bore (INB) of the engine were modified. The present research combines the effect of the nozzle hole diameters and split injection scheme on the performance and combustion parameters of compression ignition (CI) engine was investigated. The engine was fueled with diesel blended of different proportions (Sp20, Sp40, Sp60, and Sp100) of spirulina biodiesel to prove the suitability of this blend as an alternative fuel. The injector nozzle has three injection holes, and the diameter of the three modified holes of the nozzle is changing (from 0.20 to 0.28 mm, step 0.02 mm) along with two types of scheme injection (double and triple). Furthermore, the influence of the direct injection Diesel‐RK model, single‐cylinder, four‐stroke engine; constant compression ratio (17.5:1), engine speed (1500 rpm), and naturally aspired engine at full load condition are studied. A comparison of the present simulation is compared with published results to validate the present simulation model for conventional baseline Diesel for validation. The simulation was done to investigate and present a comparative study with the conventional baseline Diesel engine. The double injection scheme shows a decrease by 1.8%, 1.7%, and 1.9% for parameters of peak cylinder pressure (PCP), peak cylinder temperature (PCT), and maximum rate of pressure rise, respectively. Whereas, the specific fuel consumption (SFC) and break thermal efficiency are increased by 8.7% and 9.33%, respectively. The results showed a reduction by 2.1%, 20.5%, 22.1%, and 3.2% in PCP, PCT, maximum rate of pressure rise, and break thermal efficiency, respectively. Moreover, the SFC is increased by 3.1% with the modified INB 0.28 (mm).

show abstract

Section: Resultsmentioning

confidence: 99%

“…At this stage, the developed gas temperature will be higher, leading to improved fuel and oxygen reaction and a decrease in SFC. 20 Moreover, at the start of 1st…”

Section: F I G U R E 6 Maximum Rate Of Pressure Rise Versus Injector ...mentioning

confidence: 99%

Combined effect of multi‐injection scheme, injector nozzle bore, and biodiesel blends on combustion and performance characteristics of diesel engine

Al‐Abboodi

Al-Waaly

2023

Heat Trans

View full text Add to dashboard Cite

show abstract

“…The ignition is mainly initiated by the fuel injected through 1 st pulse at the end of the delay period. In contrast, lately, the 2nd and 3rd pulses of fuel injected impact the ignition process [30]. Thus, the ID increase corresponds to the increase in split injections.…”

Section: Ignition Delaymentioning

confidence: 98%

Numerical Investigation of Split Injection Strategies and Injector Nozzle Bore Influence on Combustion and Emissions

Al‐Abboodi

Taher

2023

CFDL

View full text Add to dashboard Cite

The power generation mainly depends on fossil diesel fuel, the primary source of harmful emissions and global warming. Therefore, the researcher aims to explore alternative fuels that got greater attention in compression ignition engines. The commercial Diesel-RK software simulates the current numerical study of diesel engine direct injection with speed engine 1500 rpm, compression ratio 17.5, single cylinder, and naturally aspirated. In the basis of the parliamentary research, the literature did not investigate the influence of combustion and emission characteristics of compression ignition engines by using various double and trouble injection strategies along with different injector nozzle bore sizes. Also, the initiative was undertaken to study the effect of the different diesel-biodiesel blends ratio studied, SP20 (80% diesel+20% spirulina), Sp40(60% diesel+40% spirulina), and Sp100(0% diesel +100% spirulina) While the scope of the gap expanded to include a comparison of results with baseline diesel fuel. The results show that MPR increased by 4.2%, maximum gas temperature increased by 8.9%, ignition delay increased by 7.9%, maximum heat release rate decreased by 9.5%, NOx decreased by 7.8%, CO2 decreased by 3.9%, and particularly matter emissions decreased by 6.3% were compared to the double injection scheme , at 0.2 mm(INB)

show abstract

Effect of different chamber geometries on combustion formation to reduce harmful emissions

Doppalapudi,

Azad,

Khan

et al. 2025

Applied Thermal Engineering

View full text Add to dashboard Cite

The Combined Effect of the Piston Bowl Geometry and Injection Fuel Pressure on the Compression Ignition Engine Characteristics

Cited by 3 publications

References 37 publications

Combined effect of multi‐injection scheme, injector nozzle bore, and biodiesel blends on combustion and performance characteristics of diesel engine

Combined effect of multi‐injection scheme, injector nozzle bore, and biodiesel blends on combustion and performance characteristics of diesel engine

Numerical Investigation of Split Injection Strategies and Injector Nozzle Bore Influence on Combustion and Emissions

Effect of different chamber geometries on combustion formation to reduce harmful emissions

Contact Info

Product

Resources

About