Influence of injection timing and exhaust gas recirculation of a Calophyllum inophyllum methyl ester fuelled CI engine

Ashok, B.; Nanthagopal, K.; Raj, R. Thundil Karuppa; Bhasker, J.; Vignesh, D. Sakthi

doi:10.1016/j.fuproc.2017.06.024

Cited by 96 publications

(25 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3 At 1500 r/min, the use of 20% EGR seems to slightly improve the engine performance. 13 At 2100 r/min, 20 and 30% EGR have 27.23 and 27.18% BTE which was 27.2% for 10% EGR. The increase in engine speed and EGR rates leads to a slight diminishment in the BTE due to the reduction of volumetric efficiency and available oxygen in the intake charge.…”

Section: Resultsmentioning

confidence: 87%

“…EGR reduces the availability of oxygen for combustion which results from incomplete combustion and increases the smoke formation. 13 Increased ignition delay and lower combustion period are also expected to contribute to the direction of lower smoke emissions. 6 This is due to the better mixing and combustion of fuel resulting in improved oxidation of soot particles.…”

Section: Resultsmentioning

confidence: 99%

“…Abassi et al 12 investigated the research work about charge inlet temperature (CIT) effect and they concluded that both the brake thermal efficiency (BTE) and brake-specific fuel consumption (BSFC) decreased slightly with the effect of CIT, which could be attributed to higher heat loss. Ashok et al 13 examined the influence of IT and EGR on diesel engine fueled with biofuels and found that 10% EGR rate could reduce the NOx emissions effectively. Krishnamoorthi and Malayalamurthi 6 investigated the effect of compression ratio (CR), injection pressure (IP), and IT on performance, combustion, and emission behavior.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of exhaust gas recirculation and charge inlet temperature on performance, combustion, and emission characteristics of diesel engine with bael oil blends

Krishnamoorthi

Malayalamurthi

2018

Energy & Environment

View full text Add to dashboard Cite

The threat of fossil fuel depletion and augmented environmental pollution caused by diesel fleets can be curbed by adopting suitable fuel and engine modifications. In the present work, effects of engine speed (r/min), injection timing, injection pressure and compression ratio on performance and emission characteristics of a compression ignition engine were investigated. The ternary test fuel of 65% diesel + 25% bael oil + 10% diethyl ether has been used, where the tests have been conducted at different charge inlet temperature and exhaust gas recirculation. All the experiments were conducted at the trade-off engine load that is 75% engine load. When the diesel engine operating with 320 K charge inlet temperature, brake thermal efficiency has been improved to 28.6%. Meanwhile reduced emission levels of carbon monoxide (0.025%) and hydrocarbon (12.3 ppm) were observed during the engine operation with 320 K charge inlet temperature and compression ratio of 18:1. The oxides of nitrogen have been reduced to 226 ppm at 16:1 compression ratio with 30% exhaust gas recirculation mode.

show abstract

Section: Resultsmentioning

confidence: 87%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of exhaust gas recirculation and charge inlet temperature on performance, combustion, and emission characteristics of diesel engine with bael oil blends

Krishnamoorthi

Malayalamurthi

2018

Energy & Environment

View full text Add to dashboard Cite

show abstract

“…With common rail fuel injection system, injection parameters such as injection timing, injection pressure and injection duration can be manipulated to improve the efficiency and emissions of the diesel engine. Various studies have indicated that injection timing retardation reduces NO x emissions [18][19][20][21]. This is because retarding the injection timing reduces the maximum combustion temperature and pressure in the cylinder and hence decreases the formation of NO x .…”

Section: Prior Studiesmentioning

confidence: 99%

Implementation of Common Rail Direct Injection System and Optimization of Fuel Injector Parameters in an Experimental Single-Cylinder Diesel Engine

Teoh

How

Peh³

et al. 2020

Processes

View full text Add to dashboard Cite

The diesel engine is one of the solutions to slow down fossil fuel depletion due to its high efficiency. However, its high pollutant emission limits its usage in many fields. To improve its efficiency and emissions, a conventional mechanical fuel injection system (MFI) was be replaced with common rail direct injection (CRDI) system for the purpose of this study. In this way, injection parameters such as injection timing, injection pressure and multiple injection schemes can be tuned to enhance the engine performance. The rail pressure and engine speed response of the modified diesel engine was tested. It was found that by advancing the start of injection timing (SOI) timing or increasing the rail pressure, the brake torque generated can be increased. Multiple injection schemes can be implemented to reduce the peak heat release rate (HRR). Post injection was observed to increase the late combustion HRR. The maximum pressure rise rate (PRR) can be reduced by applying pilot injection. Further research was conducted on optimizing fuel injector parameters to improve the indicated mean effective pressure (IMEP) consistency and reduce injector power consumption. The consistency of IMEP was indicated by coefficient of variation (CoV) of IMEP. The injector parameters included open time, low time and duty cycle of injector signals. These parameters were optimized by carrying out response surface methodology. The optimized parameters were observed to be 230 µs for open time, 53µs for low time and 27.5% for duty cycle. The percentage of error of CoV of IMEP and injector power were found to be lower than 5% when the predicted results are compared with experimental results.

show abstract

“…The lower CO emission with Biodiesel blended fuel has also been stated by Shehata. 13 The majority of the researchers [14][15][16][17][18] have also utilized Biodiesel to reduce the dependency on diesel fuel and sustain the diesel power train.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Taguchi–Fuzzy‐based performance‐exhaust emission trade‐off study of variable compression ratio diesel engine fueled with undi‐diesel blends

Madane

Bhowmik

Panua

2019

Env Prog and Sustain Energy

View full text Add to dashboard Cite

The present investigation highlights the effect of variable compression ratio (VCR) on the performance and exhaust emission characteristics of a single cylinder, direct injection diesel engine fueled with undi‐diesel blends. 10%, 20%, 30%, 40%, and 50% undi fuel have been added to diesel in volumetric proportions and tested by varying compression ratio (CR) from 16:1 to 20:1. Undi addition to diesel fuel significantly improves the brake thermal efficiency (BTE) and brake specific energy consumption (BSEC) of the engine. In addition, higher CR facilitates to improve unburned hydrocarbon (UHC), carbon monoxide (CO) and smoke opacity of the diesel engine with the penalties of higher oxides of nitrogen (NOX) emissions. In perspective of the engine experimental outputs, a Taguchi assisted Fuzzy based trade off study has been conducted to screen and locate the optimal diesel engine operating conditions, namely, CR, undi share, and load. The optimum process parameter has been found to be A2B6C2 with a multi performance characteristics index (MPCI) value of 0.683 indicating the optimum operating conditions of 17:1 CR, 50% (by volume) undi share at 50% load.

show abstract

Influence of injection timing and exhaust gas recirculation of a Calophyllum inophyllum methyl ester fuelled CI engine

Cited by 96 publications

References 37 publications

Effect of exhaust gas recirculation and charge inlet temperature on performance, combustion, and emission characteristics of diesel engine with bael oil blends

Effect of exhaust gas recirculation and charge inlet temperature on performance, combustion, and emission characteristics of diesel engine with bael oil blends

Implementation of Common Rail Direct Injection System and Optimization of Fuel Injector Parameters in an Experimental Single-Cylinder Diesel Engine

Hybrid Taguchi–Fuzzy‐based performance‐exhaust emission trade‐off study of variable compression ratio diesel engine fueled with undi‐diesel blends

Contact Info

Product

Resources

About