Waste coconut oil methyl ester with and without additives as an alternative fuel in diesel engine at two different injection pressures

Soudagar, Manzoore Elahi M.; Afzal, Asif; Kareemullah, Mohammed

doi:10.1080/15567036.2020.1769775

Cited by 35 publications

(27 citation statements)

References 40 publications

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“…A recently developed technique to improve combustion characteristics and fuel properties is through the addition of fuel additives. The past decade has witnessed a rise in the utilization of alcohol-based additives in biodiesel fuel blends, such as ethanol, butanol, heptanol, and diethyl ether [9][10][11]. Alcohol-based additives supply more oxygen in the combustion chamber to reduce emissions, however, due to the formation of a lean mixture it lowers the calorific value, which, combined with higher auto ignition temperatures and lower lubrication properties, results in engine deterioration and reduced performance characteristics.…”

Section: Introductionmentioning

confidence: 99%

Effect of Zinc Oxide Nano-Additives and Soybean Biodiesel at Varying Loads and Compression Ratios on VCR Diesel Engine Characteristics

Gavhane¹,

Kate²,

Pawar³

et al. 2020

Symmetry

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The present investigation is directed towards synthesis of zinc oxide (ZnO) nanoparticles and steady blending with soybean biodiesel (SBME25) to improve the fuel properties of SBME25 and enhance the overall characteristics of a variable compression ratio diesel engine. The soybean biodiesel (SBME) was prepared using the transesterification reaction. Numerous characterization tests were carried out to ascertain the shape and size of zinc oxide nanoparticles. The synthesized asymmetric ZnO nanoparticles were dispersed in SBME25 at three dosage levels (25, 50, and 75 ppm) with sodium dodecyl benzene sulphonate (SDBS) surfactant using the ultrasonication process. The quantified physicochemical properties of all the fuels blends were in symmetry with the American society for testing and materials (ASTM) standards. Nanofuel blends demonstrated enhanced fuel properties compared with SBME25. The engine was operated at two different compression ratios (18.5 and 21.5) and a comparison was made, and best fuel blend and compression ratio (CR) were selected. Fuel blend SBME25ZnO50 and compression ratio (CR) of 21.5 illustrated an overall enhancement in engine characteristics. For SBME25ZnO50 and CR 21.5 fuel blend, brake thermal efficiency (BTE) increased by 23.2%, brake specific fuel consumption (BSFC) were reduced by 26.66%, and hydrocarbon (HC), CO, smoke, and CO2 emissions were reduced by 32.234%, 28.21% 22.55% and 21.66%, respectively; in addition, the heat release rate (HRR) and mean gas temperature (MGT) improved, and ignition delay (ID) was reduced. In contrast, the NOx emissions increased for all the nanofuel blends due to greater supply of oxygen and increase in the temperature of the combustion chamber. At a CR of 18.5, a similar trend was observed, while the values of engine characteristics were lower compared with CR of 21.5. The properties of nanofuel blend SBME25ZnO50 were in symmetry and comparable to the diesel fuel.

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Section: Introductionmentioning

confidence: 99%

Effect of Zinc Oxide Nano-Additives and Soybean Biodiesel at Varying Loads and Compression Ratios on VCR Diesel Engine Characteristics

Gavhane¹,

Kate²,

Pawar³

et al. 2020

Symmetry

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“…properties of fuel blends. The research conditions, environment, and equipment were followed by the preliminary investigations by Soudagar et al 1,2,41 . Table 2 demonstrates the properties of the diesel (D100), www.nature.com/scientificreports/ biodiesel (MOME20), and nanofuel blends (D10030 and MOME2030).…”

Section: Analysis Of Uncertainty the Uncertainty Analysis Comprises mentioning

confidence: 99%

“…This injection restrains sharp intensification of pressure during the rapid combustion phase and eventually reduces knocking and subsequently producing NOx. An added rationale for the rise in the NOx may be attributed to the fact that a more substantial part of the combustion is achieved before TDC for MOME20 and its blends as compared to diesel and nanodiesel blends due to lower ignition delay 41,61 . The maximum thermal efficiency of nano-additives enhances www.nature.com/scientificreports/ the combustion phenomenon through an increase in the convective heat transfer coefficient 1,43 .…”

Section: Effect Of Iop On Engine Emission Characteristics the Variatmentioning

confidence: 99%

Study of diesel engine characteristics by adding nanosized zinc oxide and diethyl ether additives in Mahua biodiesel–diesel fuel blend

Soudagar

Banapurmath

Afzal

et al. 2020

Sci Rep

Self Cite

102

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This study deals with an experimental investigation to assess the characteristics of a modified common rail direct injection (CRDI) engine utilizing diesel, Mahua biodiesel, and their blends with synthesized zinc oxide (ZnO) nano additives. The physicochemical properties of diesel, diesel + 30 ppm ZnO nanoparticles (D10030), 20% Mahua biodiesel (MOME20), and Mahua biodiesel (20%) + 30 ppm ZnO nanoparticles (MOME2030) were measured in accordance to the American Society for Testing and Materials standards. The effects of modification of fuel injectors (FI) holes (7-hole FI) and toroidal reentrant combustion chamber (TRCC) piston bowl design on the performance of CRDI using different fuel blends were assessed. For injection timings (IT) and injection opening pressure (IOP) average increase in brake thermal efficiency for fuel blend D10030 and MOME2030 was 9.65% and 16.4%, and 8.83% and 5.06%, respectively. Also, for IT and IOP, the average reductions in brake specific fuel consumption, smoke, carbon monoxide, hydrocarbon and nitrogen oxide emissions for D10030 and MOME2030 were 10.9% and 7.7%, 18.2% and 8.6%, 12.6% and 11.5%, 8.74% and 13.1%, and 5.75% and 7.79%, respectively and 15.5% and 5.06%, 20.33% and 6.20%, 11.12% and 24.8%, 18.32% and 6.29%, and 1.79% and 6.89%, respectively for 7-hole fuel injector and TRCC. The cylinder pressure and heat release rate for D10030 and MOME2030 were enhanced by 6.8% and 17.1%, and 7.35% and 12.28%. The 7-hole fuel injector with the nano fuel blends at an injection timing and pressure of 10° btdc and 900 bar demonstrated the overall improvement of the engine characteristics due to the better air quality for fuel mixing. Similarly, the TRCC cylinder bowl geometry illustrated advanced ignition due to an improved swirl and turbulence. Also, the engine test results demonstrated that 30 ppm of ZnO nanoparticles in Mahua biodiesel (MOME2030) and diesel (D10030) with diethyl ether resulted overall enhancement of CRDI engine characteristics.

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“…[4][5][6] The diesel engines have established themselves as the primary source of transportation in global market and their use in powerhouses. 7,8 Also, the surge in the green gas house emissions, that is, carbon dioxide has led to a drastic increase in the environmental temperature, thus has boosting public and scientific attention in biofuels. [9][10][11] The benefits of nonedible oils as biodiesel are the high aromatic content and minimum sulfur emissions, comparable diesel fuel properties, high lubricity, oxygen content, and cetane number, while the few limitations are high viscosity, flash and pour point, low calorific value, and volatility.…”

Section: Introductionmentioning

confidence: 99%

“…The past decade has seen rapid growth in biofuels due to its nature of being ecofriendly and nontoxic in the global fuel market and is expected to rise rapidly 4‐6 . The diesel engines have established themselves as the primary source of transportation in global market and their use in powerhouses 7,8 . Also, the surge in the green gas house emissions, that is, carbon dioxide has led to a drastic increase in the environmental temperature, thus has boosting public and scientific attention in biofuels 9‐11 .…”

Section: Introductionmentioning

confidence: 99%

Effect of diethyl ether additive in Jatropha biodiesel‐diesel fuel blends on the variable compression ratio diesel engine performance and emissions characteristics at different loads and compression ratios

et al. 2020

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An investigational analysis was performed to assess the effect of diethyl ether (DEE) that acts as an oxygenated additive in Jatropha biodiesel and diesel fuel blends on the performance enhancement and emission reduction of a variable compression ratio (CR) diesel engine. The DEE (10% vol) is added to different concentration levels of Jatropha biodiesel (B5, B10, and B20). The Jatropha biodiesel (JME) is prepared by the transesterification reaction and DEE is prepared through acid distillation

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Waste coconut oil methyl ester with and without additives as an alternative fuel in diesel engine at two different injection pressures

Cited by 35 publications

References 40 publications

Effect of Zinc Oxide Nano-Additives and Soybean Biodiesel at Varying Loads and Compression Ratios on VCR Diesel Engine Characteristics

Effect of Zinc Oxide Nano-Additives and Soybean Biodiesel at Varying Loads and Compression Ratios on VCR Diesel Engine Characteristics

Study of diesel engine characteristics by adding nanosized zinc oxide and diethyl ether additives in Mahua biodiesel–diesel fuel blend

Effect of diethyl ether additive in Jatropha biodiesel‐diesel fuel blends on the variable compression ratio diesel engine performance and emissions characteristics at different loads and compression ratios

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