An alternative fuel to CI engine: delonix regia seed through biochemical and solar-assisted thermal cracking process

Subramanian, Sudagar; Ramalingam, Senthil; Subramanian, Angayarkanny

doi:10.1007/s13762-022-04299-1

Cited by 4 publications

(4 citation statements)

References 30 publications

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“…Additionally, the higher density and viscosity of biodiesel and D30B60EPB10 lead to larger droplets and hinder vaporization in the combustion chamber during the injection stage, resulting in increased BSFC. Subramanian et al 47 reported that the BSFC of the PBO blend was higher than that of diesel due to its higher density. Higher density values can account for the higher BSFC values of PBO blends.…”

Section: Resultsmentioning

confidence: 99%

Upgrading Pyrolysis Bio-Oil through Esterification Process and Assessing the Performance and Emissions of Diesel–Biodiesel–Esterified Pyrolysis Bio-Oil Blends in Direct Injection Diesel Engines

Khamhuatoey,

Kaewluan,

Thawornprasert

et al. 2023

ACS Omega

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This research aimed to evaluate the performance and emissions of direct injection diesel engines using blends of diesel− biodiesel−esterified pyrolysis bio-oil (D−B−EPB). The pyrolysis process was employed to produce pyrolysis bio-oil (PBO) from solid biomass obtained from fresh palm fruits. Furthermore, a simple and effective esterification process was used to upgrade the PBO. The methyl ester (ME) purity of EPB production was studied to optimize three independent variables: methanol (14.8−65.2 wt %), sulfuric acid (1.6−18.4 wt %), and reaction time (16−84 min) using the response surface methodology. The actual experiment yielded a ME purity of 72.73 wt % under the recommended conditions of 40.3 wt % methanol, 13.0 wt % sulfuric acid, 50 min reaction time, 60 °C reaction temperature, and 300 rpm stirrer speed. Additionally, the stability and phase behaviors of D−B−EPB blends were analyzed by using a ternary phase diagram to determine the potential blending proportion. The results revealed that a fuel blend consisting of 30 wt % diesel, 60 wt % biodiesel, and 10 wt % EPB (D30B60EPB10) met the density and viscosity requirements of diesel standards. This D30B60EPB10 blend was subjected to performance and emission tests in diesel engines at various speeds ranging from 1100 to 2300 rpm and different engine loads of 25, 50, and 75%. In terms of performance analysis, the brake thermal efficiencies of biodiesel and D30B60EPB10 were 7.19 and 3.88% higher than that of diesel, respectively. However, the brake-specific fuel consumption of the D30B60EPB10 blend was 6.60% higher than that of diesel due to its higher density and viscosity and lower heating value compared with that of diesel. In the emission analysis, the D30B60EPB10 blend exhibited performance comparable to diesel while being more environmentally friendly, reducing carbon monoxide, carbon dioxide, nitrogen oxide, and smoke opacity by 8. 73, 30.13, 37.55, and 59.75%, respectively. The results of this study suggest that the D−B−EPB blend has the potential to serve as a viable biofuel option, reducing the proportion of diesel in blended fuel and benefiting farmers and rural communities..

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Section: Resultsmentioning

confidence: 99%

Upgrading Pyrolysis Bio-Oil through Esterification Process and Assessing the Performance and Emissions of Diesel–Biodiesel–Esterified Pyrolysis Bio-Oil Blends in Direct Injection Diesel Engines

Khamhuatoey,

Kaewluan,

Thawornprasert

et al. 2023

ACS Omega

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“…The blend combinations of B20 give optimal results; they improved BTE by 1% and reduced BSFC by 1.2% compared to diesel. The formation of emissions is very low in the range of 2.1% for CO emissions, and the lowest emissions are found for this same blend B20 order of 25 ppm, which is 3.2% less than diesel . The best fuel, D30B60EPB10, leads to the dynamic performance of the engine with combustion characteristics.…”

Section: Introductionmentioning

confidence: 87%

“…The formation of emissions is very low in the range of 2.1% for CO emissions, and the lowest emissions are found for this same blend B20 order of 25 ppm, which is 3.2% less than diesel. 29 The best fuel, D30B60EPB10, leads to the dynamic performance of the engine with combustion characteristics. The BTE is increased by 7.3%, the minimum BSFC achieved is 3.9%, and CO, CO 30 Recently, research on the extraction of oil from royal poinciana seeds with the bamboo stem as a catalyst was conducted; RSM and ANN were effectively utilized to estimate the extraction of oil; and from ANN method the oil estimation is found by 97% by weight.…”

Section: Introductionmentioning

confidence: 99%

“…The formation of emissions is very low in the range of 2.1% for CO emissions, and the lowest emissions are found for this same blend B20 order of 25 ppm, which is 3.2% less than diesel. 29 The best fuel, D30B60EPB10, leads to the dynamic performance of the engine with combustion characteristics. The BTE is increased by 7.3%, the minimum BSFC achieved is 3.9%, and CO, CO 2 , and NO X emissions and smoke opacity are reduced by 8.74, 31.21, 38.55, and 60.2%, respectively.…”

Section: Introductionmentioning

confidence: 99%

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Royal Poinciana Biodiesel Blends with 1-Butanol as a Potential Alternative Fuel for Unmodified Research Engines

Kumar,

Alqarni,

Islam

et al. 2024

ACS Omega

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This research work investigates the experimental work of a single-cylinder diesel engine operated with royal poinciana biodiesel blends with various proportions of 10, 20, and 30% volume with 1-butanol as an effective ignition-improving additive. The test blends were indicated as D90RP7B3 (90% diesel + 7% royal poinciana biodiesel + 3% butanol), D80RP14B6 (80% diesel + 14% royal poinciana biodiesel + 6% butanol), D70RP21B9 (70% diesel + 21% royal poinciana biodiesel + 9% butanol), and pure royal poinciana biodiesel (RP100) and diesel. The significant findings or results obtained during the experimentation are that BTE is suitable for blend D90RP7B3, and the least BSFC is found for blend D90RP7B3 in the 0.24 kg/kWh range. The inline cylinder pressures are found to be suitable for the blend D90RP7B3 in the range of 7 MPa; HRR is ideal for both the blends D90RP7B3 and D80RP14B6 in the range of 90 and 88 kJ; D90RP7B3 possesses adequate ignition delay at full load conditions 16°in crank angle advance; maximum A/F ratios are well suitable for the blend D90RP7B3 in the ratio 11:1 at higher loads. Volumetric efficiency is achieved well for all the blends and diesel; the emissions released from the royal poinciana blends, such as CO, CO 2 , HC, and NO X , were reduced by 14.12, 8.33, 11.1, and 18.8% compared to standard diesel. Hence, royal poinciana blends with 1-butanol can be considered the best fuels in the automobile sector.

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The effect of coke and soot formation on the bio-oil combustion at high temperatures

Xu,

Li,

Zhong

et al. 2023

Journal of the Energy Institute

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An alternative fuel to CI engine: delonix regia seed through biochemical and solar-assisted thermal cracking process

Cited by 4 publications

References 30 publications

Upgrading Pyrolysis Bio-Oil through Esterification Process and Assessing the Performance and Emissions of Diesel–Biodiesel–Esterified Pyrolysis Bio-Oil Blends in Direct Injection Diesel Engines

Upgrading Pyrolysis Bio-Oil through Esterification Process and Assessing the Performance and Emissions of Diesel–Biodiesel–Esterified Pyrolysis Bio-Oil Blends in Direct Injection Diesel Engines

Royal Poinciana Biodiesel Blends with 1-Butanol as a Potential Alternative Fuel for Unmodified Research Engines

The effect of coke and soot formation on the bio-oil combustion at high temperatures

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