Experimental assessment of performance and exhaust emission characteristics of a diesel engine fuelled with Punnai biodiesel/butanol fuel blends

Devarajan, Yuvarajan; Munuswamy, Dineshbabu; Beemkumar, N.; Ganesan, S.

doi:10.1007/s12182-019-00361-9

Cited by 110 publications

(33 citation statements)

References 35 publications

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“…This shows better combustion at higher loads, which is the common trend of a CI engine. At higher loads, the amount of fuel supplied is more that leads to higher brake power and BTE (Devarajan et al 2019b). The BTE was found to be highest for diesel at all loads.…”

Section: In-cylinder Peak Pressurementioning

confidence: 99%

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Effect of di-tertiary-butyl peroxide additive on combustion, performance and emissions of a karanja methyl ester fueled diesel engine

Pattanaik¹,

Panda

Gugulothu³

et al. 2021

Preprint

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The present work studies the influence of di-tertiary-butyl peroxide (DTBP) as a cetane-improving additive to karanja methyl ester (KME) on the combustion, performance and emission characteristics of a diesel engine. KME produced by base catalyzed transesterification of non-edible karanja oil was blended with DTBP in different volume proportions to result KMED1 (99% KME + 1% DTBP), KMED2 (98% KME + 2% DTBP), KMED3 (97% KME + 3% DTBP) and KMED5 (95% KME + 5% DTBP) fuel blends. With increase in DTBP content, viscosity was reduced, whereas the cold flow properties, cetane index and calorific value were enhanced. Engine test results exhibited improvement in brake thermal efficiency and brake specific energy consumption for all blends compared to neat KME. Combustion analysis showed improved combustion with rise in DTBP content in the blends. The CO, HC and NOx emissions with KME-DTBP blends were less compared to neat KME and the same significantly reduced with rise in DTBP percentage in the blends. This shows improved combustion due to more oxygen availability and improvement in fuel properties with addition of DTBP to KME. However, the NOx emissions were marginally higher with KME-DTBP blends compared to neat KME and diesel that may be further studied.

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Section: In-cylinder Peak Pressurementioning

confidence: 99%

“…At higher loads, the in-cylinder temperature is higher due to combustion of larger quantity of fuel. This in turn, increases the residence time of higher temperature leading to higher NO x emissions (Devarajan et al 2019b;Joy et al 2019). Highest NO x emissions were observed at 100% load for all selected fuels.…”

Section: Unburned Hydrocarbonsmentioning

confidence: 99%

Effect of di-tertiary-butyl peroxide additive on combustion, performance and emissions of a karanja methyl ester fueled diesel engine

Pattanaik¹,

Panda

Gugulothu³

et al. 2021

Preprint

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“…As seen, the smoke emissions increase in most case with load for all tested fuel samples. This is due to the fact that a supplemental amount of fuel can be required with the identical number of air in the combustion chamber where makes the air/fuel ratios as a rich and leads to becoming incomplete combustion process and thereby higher smoke emissions in the exhaust [102]. The unmodified diesel fuel formed more smoke than that of the binary blends of 1-pentanol and diesel fuel.…”

Section: Oxygen Emissionmentioning

confidence: 99%

Experimental assessment of a CI engine operating with 1-pentanol/diesel fuel blends

Yeşilyurt

Doğan

Erol

2020

International Journal of Automotive Science and Technology

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Alcohols have been known as influential alternatives for the utilization in the compression-ignition (CI) engines. In contrast to lower-order alcohols such as methanol-C1 and ethanol-C2, long-chain alcohols (higher-order alcohols) have a hopeful future for CI engines. Pentanol-C5 or amyl alcohol, regarding its affirmative chemical and physical properties, is a type of higher alcohol that can be obtained from biomass resources and hence it has to be evaluated as an alternating and sustainable fuel candidate in diesel engine applications. The objective of this work is to explore the engine performance and exhaust emission characteristics of a CI engine running on 1-pentanol/diesel fuel mixtures. For this aim of the experimental research, three different blends were created by infusing various ratios (10, 20, and 30% by volume) of 1-pentanol into pure diesel with implementing the splash-blending method to acquire the binary blends of Pt10, Pt20, and Pt30. The tested fuel samples were used in a single-cylinder diesel engine coupled with a generator. The influences of a next-generation alcohol addition to the diesel upon the engine performance along with exhaust emission levels of the tested engine were meticulously researched at six different engine loads (0, 0.4, 0.8, 1.2, 1.6, and 2 kW) with a stable speed (3000 rpm). The infusion of alcohol into the diesel fuel declined cetane number as well as the lower calorific value of the fuel blends. As a result of the study carried out, it was observed that the brake specific fuel consumption (BSFC) increased between 4.46-11.78% averagely as the ratio of 1-pentanol in the mixtures increased while brake thermal efficiency (BTE) and exhaust gas temperature (EGT) dropped up to 6.75% and 6.69%, respectively owing to the lesser energy content of the 1pentanol. When the test engine operating with binary blends, unburned hydrocarbon (HC) and carbon monoxide (CO) emissions were obtained to be higher than that of conventional diesel fuel due to the higher latent heat of vaporization (LHV) of 1-pentanol resulting in a cooling impact in the cylinder, leading descending trend in the efficiency of the combustion. Besides, the addition of 1pentanol to diesel caused the mitigation in smoke emission by 77.37-89.60%, carbon dioxide (CO2) by 13.06-30.83%, and nitrogen oxides (NOX) by 13.43-41.61% on an average as compared to diesel fuel. Overall, it has been shown up that 1-pentanol might be successfully utilized as an oxygenated fuel additive to diesel fuel, however in a minimum concentration of 1-pentanol, i.e., Pt10 blend has provided luminous outcomes in terms of mitigating the EGT, smoke opacity, and especiallyNOXemissions, however at the expense of boosting in the emissions of CO and HC.

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“…Many works reported the positive characteristics of other HA (hexanol, butanol and pentanol) and IE (DEE, DME and DMC) on diesel/biodiesel blends. Devarajan et al (2019b) investigated the appropriateness of octanol in Rice bran BD at 10%-20% in steps of 10% volume for CI engine. BD was varied from 100% to 80%, and the magnitude of octanol was varied consequently.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, the 10% octanol BD results in lowered NO (3.7%) and CO (6.8%) emission. Devarajan et al (2019b) employed 10% and 20% of butanol with Punnai BD in constant speed engine. Investigation revealed that the postblending of butanol to Punnai BD lowered all the emissions associated with BD.…”

Section: Introductionmentioning

confidence: 99%

Detailed study on the effect of different ignition enhancers in the binary blends of diesel/biodiesel as a possible substitute for unaltered compression ignition engine

Devarajan¹,

Munuswamy²,

Beemkumar

et al. 2020

Pet. Sci.

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This study examines the impact of the oxygenated additives namely DTBP (Di-Tetra-Butyl-Phenol) and 1-Pentadecanol (1-DEC) on emissions, combustion and performance patterns of Karanja biodiesel/diesel blends. Two additives were selected as ignition improver owing to their improved physicochemical properties. The additives were mixed at 10% volume with the equal blends of diesel and biodiesel. Experimental results revealed that by adding additives and biodiesel to diesel found no phase separation. HRR and peak pressure were highest for diesel and least for KBD/D blends. However, blending the additives enhanced its HRR and peak pressure. Addition of additives lowered the harmful emissions significantly with a slight increase in NO emissions to the KBD/D blends. In addition, a noteworthy increase in performance aspects was observed for KBD/D blends by adding DTBP and 1-Pentadecanol.

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Experimental assessment of performance and exhaust emission characteristics of a diesel engine fuelled with Punnai biodiesel/butanol fuel blends

Cited by 110 publications

References 35 publications

Effect of di-tertiary-butyl peroxide additive on combustion, performance and emissions of a karanja methyl ester fueled diesel engine

Effect of di-tertiary-butyl peroxide additive on combustion, performance and emissions of a karanja methyl ester fueled diesel engine

Experimental assessment of a CI engine operating with 1-pentanol/diesel fuel blends

Detailed study on the effect of different ignition enhancers in the binary blends of diesel/biodiesel as a possible substitute for unaltered compression ignition engine

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