Computational analysis of chlorella protothecoides biofuels on engine combustion, performance and emission

Kesharvani, Sujeet; Verma, Tikendra Nath; Dwivedi, Gaurav

doi:10.1016/j.seta.2022.102972

Cited by 8 publications

(2 citation statements)

References 93 publications

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“…The increasing global concerns regarding environmental degradation and the impending depletion of conventional fossil fuels have necessitated a focused [1] and collective global effort to explore sustainable [2] and environmentally [3] benign energy alternatives. Diesel engines [4], renowned for their superior efficiency and torque [5], have found extensive applications in transportation and industrial sectors [6].…”

Section: Introductionmentioning

confidence: 99%

Computational Analysis on Combustion Control of Diesel Engines Fueled with Ester Alcohol Diesel

Zhou,

Zhang,

et al. 2023

Energies

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As the urgency for environmental sustainability escalates globally, the exploration of alternative fuels for diesel engines becomes a crucial endeavor. By combining chemical reaction kinetics and three-dimensional simulation software, the combustion and emission characteristics of a diesel engine fueled with two oxygenated fuels, hydrogenated biodiesel and ethanol, and adopting a multi-stage injection strategy were studied. The combustion mechanism of hydrogenated biodiesel ethanol diesel hybrid fuel was established, and the reaction activity of ester alcohol diesel with different mixing ratios was studied through reaction flow analysis at high and low OH temperatures. The established mechanism was coupled with CFD 2021 three-dimensional simulation software to compare the combustion and emission performance of diesel engines fueled with different ratios of ester alcohol diesel. The results show that as the proportion of ester alcohol mixture increases, at low temperatures, the OH generation rate decreases, the consumption rate increases, and the reaction activity decreases, which is not conducive to the promotion of combustion reaction; at high temperatures, the generation rate of OH increases, the consumption rate decreases, and the reaction activity increases, which is conducive to the promotion of combustion reactions. Compared to diesel, the reaction system activity of mixed fuel is enhanced, and the main peak values of cylinder pressure and instantaneous heat release rate are higher than that of diesel. The diffusion of oil and gas in the cylinder is improved. As the proportion of ester alcohol diesel mixture increases, the oxygen content increases, nitrogen oxides emissions increase compared to diesel, and soot emissions decrease compared to diesel. Soot emissions are mainly distributed in areas with a high equivalence ratio and high temperature, which is consistent with the distribution area of C2H2, the precursor of soot generation.

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Section: Introductionmentioning

confidence: 99%

Computational Analysis on Combustion Control of Diesel Engines Fueled with Ester Alcohol Diesel

Zhou,

Zhang,

et al. 2023

Energies

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“…Syngas is a burning oil that is renewable by nature. Energy assessments are important for optimizing the execution of Syngas and LPG fuelled gas (Kesharvani et al, 2023). Table 1 shows the nomenclature and descriptions of the article.…”

Section: Introductionmentioning

confidence: 99%

Análisis de energía, exergía y emisiones de un motor de encendido por compresión modificado que funciona en modo de combustible triple

Vardhan,

Chandra Tiwari,

Ahirwar

2023

CT&F Cienc. Tecnol. Futuro

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For the past few years, the energy demand has been raised progressively all over the world. Numerous extensive studies have been conducted to reduce the rate of emission in diverse alternative fuels. However, currently numerous investigations have been undertaken to diminish the harmful impact of the exhaustion of gas emissions from the utilization of diesel, Liquefied Petroleum Gas (LPG), and gasoline fuels. Hence, a novel triple fuel system (i.e. petrol, diesel, and LPG) is proposed based on three different analyses, namely energy, exergy, and emission at diverse load (kg) conditions. Nonetheless, the validations of each method are performed by single-cylinder four-stroke diesel engines at optimized conditions. Moreover, the analyses are performed at a constant speed rate of 1500rpm, with six diverse engine loads (kg) of about (2.5, 5, 7.5, 10, 12.5, and 13.50 kg). Various measurable factors such as emission rate, heat transfer rate, and cylinder pressure are determined to estimate the steady state condition. Finally, various parameters such as brake thermal efficiency, specific fuel consumption, and exhaust gas analysis are performed and compared with single fuel, dual fuel, and the proposed triple fuel modes to determine the efficiency of the system.

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A numerical investigation on enhancing the performance of a diesel engine fuelled with diesel‐biodiesel blend using a diethyl ether as an additive

Youssef,

Ibrahim

2024

Engineering Reports

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Globally, the encouragement of using renewable fuels like biodiesel for diesel engines is driven by concerns over the fossil fuel depletion and harmful emissions. Additionally, the utilization of renewable fuel additives like diethyl ether has the potential to enhance fuel properties and boost engine performance. The aim of this paper was to construct a computer simulation using Ricardo Wave program in order to predict the performance and nitrogen oxides (NOx) emission of a diesel engine fuelled by a diesel‐biodiesel blend and a diethyl ether (DEE) as a fuel additive. The computer model was validated by comparing the simulation engine performance and NOx emission results against the corresponding experimental data for diesel, diesel‐biodiesel blend with 30% biodiesel proportion (B30), and two blends of diesel‐biodiesel‐DEE with DEE proportions of 5% and 10% on a volume basis. Also, the effect of varying the inlet air pressure on engine performance and NOx emission was compared for all investigated fuels. It was numerically demonstrated that using the DEE with an optimum proportion of 5% enhanced engine performance as it decreased engine fuel consumption by 5.9% and increased engine thermal efficiency by 9.6% compared to diesel fuel at engine full load condition. Also, a significant reduction of 20.5% in NOx emission resulted from the addition of DEE. Increasing the inlet air pressure increased engine power and decreased engine fuel consumption for all investigated fuels. Increasing the inlet air pressure from 1 to 3 bar increased engine brake thermal efficiency by almost 20% for all tested fuels. However, NOx emission increased slightly within a range from 1.7% to 7% for the different investigated fuels.

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Computational analysis of chlorella protothecoides biofuels on engine combustion, performance and emission

Cited by 8 publications

References 93 publications

Computational Analysis on Combustion Control of Diesel Engines Fueled with Ester Alcohol Diesel

Computational Analysis on Combustion Control of Diesel Engines Fueled with Ester Alcohol Diesel

Análisis de energía, exergía y emisiones de un motor de encendido por compresión modificado que funciona en modo de combustible triple

A numerical investigation on enhancing the performance of a diesel engine fuelled with diesel‐biodiesel blend using a diethyl ether as an additive

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