Emission reduction in a DI diesel engine using exhaust gas recirculation (EGR) of palm biodiesel blended with TiO2 nano additives

Venu, Harish; Subramani, Lingesan; Raju, V. Dhana

doi:10.1016/j.renene.2019.03.078

Cited by 312 publications

(55 citation statements)

References 48 publications

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“…By using eqn.3, the uncertainties in various measured parameters were evaluated and tabulated in Table 5. shortened delay period which results in combustion getting more uniform followed by lessened peak pressure [5,6]. Moreover, from Table 2, we can observe that DIESEL fuel has improved calorific value which is responsible for consuming lowered fuel at combustion and high combustion efficiency of DIESEL is also a factor for shortened peak pressure [7,8].…”

Section: Uncertainty Analysismentioning

confidence: 92%

“…The available excess oxygen molecule further rejoins with CO to get transformed to a CO2 molecule as illustrated in the following Equation(6With increasing nanoparticle concentration to 50ppm, CO emissions further reduce by 8.28% to 2.6g/kWh which could be attributed to improved fuel properties of PBD+50ppmAl2O3 as well as the presence of sufficient concentration of nano-additives…”

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confidence: 99%

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Influence of nanoparticles in polanga (calophyllum inophyllum) biodiesel operated in an unmodified diesel engine

Venu

2020

Preprint

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The current research work emphases on analysing the characteristics of combustion, performance, and emissions of Polanga Biodiesel (PBD) fuelled single cylinder diesel engine with Al2O3 nano-additives added at concentration of 25 ppm and 50 ppm. The results were compared with the baseline diesel fuel at varying engine loads (25%, 50%, 75% and 100%) in a agriculture based single cylinder diesel engine of 17.5 Compression ratio at constant engine speed of 1500 rpm. Al2O3 nano-additives were blended with PBD using magnetic stirrer and ultrasonicator. Experimentation results revealed that, the nanoparticles addition in PBD improved the combustion and emission characteristics of base fuel due to higher surface area to volume ratio of nano-additives. Moreover, Al2O3 nanoparticles addition enhanced the brake thermal efficiency (BTE) and lowered the brake specific fuel consumption (BSFC) by 6.58% and 7.38% respectively. Subsequently, the emissions of HC, CO, NOx and smoke opacity were improved with the addition of fuel borne additives in PBD owing to improved combustion efficiency.

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Section: Uncertainty Analysismentioning

confidence: 92%

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confidence: 99%

Influence of nanoparticles in polanga (calophyllum inophyllum) biodiesel operated in an unmodified diesel engine

Venu

2020

Preprint

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“…This result is in line with many other research works carried with the effect of varying compression ratio. [45][46][47] Smoke opacity. Figure 10 shows the smoke opacity of the engine when fueled with D70H30 blend at various compression ratio viz., 16:1, 17.5:1 and 19:1 and under EGR rates of 0%, 10%, and 20% respectively at bmep ¼ 4.16 bar and speed ¼ 1500 rpm.…”

Section: Performance Analysismentioning

confidence: 99%

Emission profiling of a common rail direct injection diesel engine fueled with hydrocarbon fuel extracted from waste high density polyethylene as a partial replacement for diesel with some modifications

Duraisamy

Ismailgani

Paramasivam

et al. 2020

Energy & Environment

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A hydrocarbon fuel extracted from waste high-density polyethylene (WHDPE) by catalytic pyrolysis in a batch scale reactor is blended with diesel by 30% vol. (called as D70H30) is tested in a variable compression ratio engine equipped with a common rail system. Experiments were conducted at three compression ratios (16:1, 17.5:1, and 19:1) and exhaust gas re-circulation (EGR) rates (0%, 10%, and 20%) at the engine’s rated power to evaluate its combustion, performance and emission characteristics. The results revealed that, increasing the compression ratio resulted in higher peak cylinder pressure (PCP) and heat release rates (HRR). Introduction of EGR diminished both PCP and HRR peaks. The brake thermal efficiency of D70H30 blend was 4% lower than diesel at same operating conditions which got better at higher compression ratio without EGR. NOx emission was highest when injected at compression ratio 19:1 and at 0% EGR rate which was 6% and 3% higher than diesel and D70H30 blend operated at engine stock settings. In comparison with baseline diesel smoke opacity remained lower at all operating conditions, where lowest smoke emission was recorded at CR19 and at 0% EGR rate. UHC and CO emission followed the similar trend of smoke opacity. Whereas CO2 emission increased with compression ratio and reduced with induction of EGR. It can be concluded from the study that at higher compression ratio and low EGR rates D70H30 blend can be effectively utilized in a CRDi engine.

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“…In Figure 10 it can be seen that CO2 emission of nanoparticles fuel show reduction at 21 N.m engine load operation where the reading recorded for PS50, PS100, PA50 and PA100 was 6.3%, 6.36%, 6.26% and 6.46% which is lower than POME test fuel with recorded data of 6.8%. Meanwhile, on 28 N.m engine load operation, lowest reduction recorded for CO2 was by PS50 and PS100 test fuel with 8.83% and 8.86% compared to POME test fuel with 9.25% reading where CO emission reduction was contributed by the improvement of the evaporation rate of fuel droplets [40]. Oxides of nitrogen (NOx) is a gas that is considered dangerous due to its ability and further reaction that can cause acid rain.…”

Section: Engine Performancementioning

confidence: 99%

Effect of Al2O3 and SiO2 Metal Oxide Nanoparticles Blended with POME on Combustion, Performance and Emissions Characteristics of a Diesel Engine

Adzmi

Adam

Abdullah

et al. 2019

IJAME

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Evaluation of combustion characteristic, engine performances and exhaust emissions of nanoparticles blended in palm oil methyl ester (POME) was conducted in this experiment using a single-cylinder diesel engine. Nanoparticles used was aluminium oxide (Al2O3) and silicon dioxide (SiO2) with a portion of 50 ppm and 100 ppm. SiO2 and Al2O3 were blended in POME and labelled as PS50, PS100 and PA50, PA100, respectively. The data results for PS and PA fuel were compared to POME test fuel. Single cylinder diesel engine YANMAR TF120M attached with DEWESoft data acquisition module (DAQ) model SIRIUSi-HS was used in this experiment. Various engine loads of zero, 7 N.m, 14 Nm, 21 N.m and 28 N.m at a constant engine speed of 1800 rpm were applied during engine testing. Results for each fuel were obtained by calculating the average three times repetition of engine testing. Findings show that the highest maximum pressure of nanoparticles fuel increase by 16.3% compared to POME test fuel. Other than that, the engine peak torque and engine power show a significant increase by 43% and 44%, respectively, recorded during the PS50 fuel test. Meanwhile, emissions of nanoparticles fuel show a large decrease by 10% of oxide of nitrogen (NOx), 6.3% reduction of carbon dioxide (CO2) and a slight decrease of 0.02% on carbon monoxide (CO). Addition of nanoparticles in biodiesel show positive improvements when used in diesel engines and further details were discussed.

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Emission reduction in a DI diesel engine using exhaust gas recirculation (EGR) of palm biodiesel blended with TiO2 nano additives

Cited by 312 publications

References 48 publications

Influence of nanoparticles in polanga (calophyllum inophyllum) biodiesel operated in an unmodified diesel engine

Influence of nanoparticles in polanga (calophyllum inophyllum) biodiesel operated in an unmodified diesel engine

Emission profiling of a common rail direct injection diesel engine fueled with hydrocarbon fuel extracted from waste high density polyethylene as a partial replacement for diesel with some modifications

Effect of Al2O3 and SiO2 Metal Oxide Nanoparticles Blended with POME on Combustion, Performance and Emissions Characteristics of a Diesel Engine

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