A Study on Performance of Common Rail Direct Injection Engine with Multiple-Injection Strategies

Khandal, S. V.; Khan, T. M. Yunus; Badruddin, Irfan Anjum

doi:10.1007/s13369-019-04110-3

Cited by 5 publications

(3 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Some groups are focused on the impact of injection parameters (fuel injection pressure (FIP), injection rate, injection timing and fuel quantity) on combustion characteristics and emissions [8][9]. The influence of alternative fuel on performance, combustion and emissions has also been explored [10][11] with variation in injection parameters or injection strategies. On the other hand [12][13][14], the predictive model was developed based on quasi-dimensional (1D) or phenomenological and multi-dimensional (i.e., CFD) approach and validated for combustion and emissions of DI diesel engine with single and multiple injections (double, triple).…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Quadruple Injection Strategy Over Triple Injections to Improve Emissions, Performance and Noise of the Automotive Diesel Engine

Biswas

Mukhopadhyay

2022

FU Mech Eng

View full text Add to dashboard Cite

The present study aims at investigating effectiveness of the quadruple (early-pilot-main-after [epMa]) injection strategy over three different triple [early-main-after (eMa), early-pilot-main (epM) and pilot-main-after (pMa)] injection scheduling in terms of emissions, performance [brake specific fuel consumption (BSFC), torque, brake thermal efficiency (BTE) and fuel economy] and noise. The experimentation was carried out on a heavy-duty BS-IV diesel engine with 45% EGR fraction and fixed main injection (Crank-angle) scheduling at eight different RPMs and three loads of engine (20%, 60% and 100%) using design of experiments(DOE). This comprehensive study showed that the quadruple injection strategy provides optimum results in both performance and emissions compared to the promising three triple injection strategy. The quadruple injection strategy exhibits the best BTE at all operating conditions and best BSFC at medium to high-speed zone around 0.5–1% inline to reduce combustion noise (CN) level, especially at low speeds and low to medium load of 0.2–2.2 dBA. Among triple injections, the pMa shows the best performance in BSFC, BTE, smoke and THC emissions. The epM is the best in the CO emissions and torque performance in the low-speed zone. Smoke value is marginally higher for the epMa at low to medium speed than the pMa, although average smoke emissions were the best. Taken together, the overall PM emission level was marginally better than Triple Injections, due to the impact of double pilots in combination with post-injection. In addition, NOx emissions were improved (around 3–6%) significantly with quadruple than with triple injections. The epMa injection scheduling also showed improvement in constant speed fuel economy and in pass-by-noise at the vehicle.

show abstract

Section: Introductionmentioning

confidence: 99%

Assessment of the Quadruple Injection Strategy Over Triple Injections to Improve Emissions, Performance and Noise of the Automotive Diesel Engine

Biswas

Mukhopadhyay

2022

FU Mech Eng

View full text Add to dashboard Cite

show abstract

“…The authors concluded that high IP and split injection technology were very effective for better atomization of fuel and thereby the engine's performance. The effect of split injection strategy with two injection pulses on overall engine characteristics was analyzed by How et al 22 Khandal et al 23 analyzed the effect of double and triple injection of the fuel during the combustion phase on a small diesel engine. The result shows a lower mean cylinder pressure and temperature and a significant reduction in NOx formation.…”

Section: Introductionmentioning

confidence: 99%

Effect of injection system parameters on overall performance of a small diesel engine

Dond¹,

Gulhane²

2021

Heat Trans

View full text Add to dashboard Cite

Limited fuel capacity and pollution are major concerns in the automobile industry. The combustion, performance, and emission characteristics are important considering the engine's overall performance. In the present paper, an experimental investigation was carried out on a small diesel engine to analyze the effect of injection system parameters on all measurable characteristics. The conventional diesel engine injection system was retrofitted with a common rail diesel injection (CRDI) system. The injection system parameters such as injection pressure, start of pilot injection timing, the start of main injection timing, and quantity of fuel injection percentage during the pilot and the main injection period were considered in the study. With the use of the CRDI system, it was observed that mean effective pressure and cylinder pressure were increased compared to the conventional diesel engine. There was a decrease in the peak value of the HRR and RoPR curve and simultaneously an increase in the width of the curve. MGT inside the combustion cylinder was also decreased. The retrofitted CRDI system shows higher thermal efficiency with good fuel economy as well as found a considerable reduction in carbon monoxide (CO) and smoke percentage. Overall, the considered injection system parameters deliver a significant improvement to the overall attributes of the small diesel engine.

show abstract

“…Results show that a retarded IT with a short fuel injection interval between pilot and main injection period gives better results. Khandal et al 15 examined the multiple split injection strategies on CRDI single-cylinder diesel engines in their research work. An equal quantity of fuel was injected during each injection interval.…”

Section: Introductionmentioning

confidence: 99%

Effect of a turbocharger and EGR on the performance and emission characteristics of a CRDI small diesel engine

Dond¹,

Gulhane²

2021

Heat Trans

View full text Add to dashboard Cite

Limited fuel capacity and pollution are major concerns in the automobile industry. Methods to tackle these issues are continuously being investigated. The present work represents the experimental evaluation of a turbocharger and exhaust gas recirculation's (EGR's) combined effect on the common rail direct injection (CRDI) small diesel engine's performance and emission attributes. The fuel handling CRDI system variables, such as injection pressure, split injection timing, and fuel injection quantity along with EGR and turbocharger technology were considered for the study. Experiments were conducted with and without EGR and turbocharger conditions. Efforts are made to correlate the performance and emission characteristics with and without EGR and turbochargers. A combination of turbocharger and EGR shows much more lowering in nitrogen oxides, carbon monoxide, and hydrocarbon emission at the cost of a slight rise in smoke percentage. The thermal efficiency and fuel economy of the engine show a significant improvement for the turbocharger system. Overall, turbocharger and EGR combinations positively impact the engine

show abstract

A Study on Performance of Common Rail Direct Injection Engine with Multiple-Injection Strategies

Cited by 5 publications

References 27 publications

Assessment of the Quadruple Injection Strategy Over Triple Injections to Improve Emissions, Performance and Noise of the Automotive Diesel Engine

Assessment of the Quadruple Injection Strategy Over Triple Injections to Improve Emissions, Performance and Noise of the Automotive Diesel Engine

Effect of injection system parameters on overall performance of a small diesel engine

Effect of a turbocharger and EGR on the performance and emission characteristics of a CRDI small diesel engine

Contact Info

Product

Resources

About