A landscape review on biodiesel combustion strategies to reduce emission

Azad, A.K.; Doppalapudi, Arun Teja; Khan, M.M.K.; Hassan, N.M.S.; Gudimetla, P.

doi:10.1016/j.egyr.2023.03.104

Cited by 22 publications

(3 citation statements)

References 278 publications

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“…Biodiesel is produced from fats and oils containing ethyl or methyl esters [17,18]. They are non-toxic and biodegradable [19,20]. For instance, various feedstocks such as babassu, andiroba, almond, tamanu, camelina, copra, coconut, fish oil, jatropha, groundnut, microalgae, Karanja, oat, sesame, poppy seed, and sorghum are used in several studies to produce biodiesel esters [21][22][23][24][25][26][27][28][29].…”

Section: Of 17mentioning

confidence: 99%

Design and Simulation of the Biodiesel Process Plant for Sustainable Fuel Production

Azad,

Jadeja,

Doppalapudi

et al. 2024

Sustainability

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The biodiesel production process is extensively studied in the literature, focusing on mechanisms, modeling, and economic aspects, yet plant design and fluid flow losses remain underexplored areas. The study addressed this gap by designing a biodiesel production plant, analyzing flow losses, and developing a pipe network and suitable pump models. In this study, an integration of biodiesel production plant design and simulation of continuous production of Calophyllum inophyllum biodiesel was investigated. Biodiesel production encompasses complex stages that involve systematic planning and system design. The goal of the plant design is to reduce the losses that occur during the conversion process, which can reduce the capital cost of the plant. A few assumptions were made when selecting biodiesel plant materials, such as pipes, pumps, fittings, and bends. These assumptions were based on considerations of the biodiesel fluid properties and pressure requirements. On the other hand, Aspen Plus was used to simulate the biodiesel production process. Calophyllum inophyllum was considered oil as the biodiesel feedstock and was inputted to the Aspen Plus as triglyceride composition. The simulation was carried out with rigorous kinetic reactions using the Non-Random Two-Liquid (NRTL) method to predict the liquid equilibrium in the reactor. Results revealed that the designed steel pipe meets safety requirements with a bursting pressure of 49.68MPa, capable of withstanding the maximum pressure of 4 bar and turbulent flow conditions. Additionally, the selected pump satisfies the required head and flow rate, ensuring efficient fluid movement. Moreover, simulation results closely matched experimental data, and 88% of biodiesel yield was recorded.

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Section: Of 17mentioning

confidence: 99%

Design and Simulation of the Biodiesel Process Plant for Sustainable Fuel Production

Azad,

Jadeja,

Doppalapudi

et al. 2024

Sustainability

Self Cite

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“…In addition, water emulsion and fumigation techniques provide better control over combustion by controlling the blends and injection rates; however, the trade-offs are reduced performance and higher carbon monoxide (CO) and hydrocarbon (HC) emissions [12,13]. Exhaust gas after-treatment systems are practically viable equipment, but they require catalyst regeneration and continuous maintenance [14]. Above all, several other aspects, such as load, compression ratio, cold start conditions and equivalence ratio, also affect NO x emissions [15].…”

Section: Introductionmentioning

confidence: 99%

Advanced Numerical Analysis of In-Cylinder Combustion and NOx Formation Using Different Chamber Geometries

Doppalapudi,

Azad

2024

Fire

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In diesel engines, emission formation inside the combustion chamber is a complex phenomenon. The combustion events inside the chamber occur in microseconds, affecting the overall engine performance and emissions characteristics. This study opted for using computational fluid dynamics (CFD) to investigate the combustion patterns and how these events affect nitrogen oxide (NOx) emissions. In this study, a diesel engine model with a flat combustion chamber (FCC) was developed for the simulation. The simulation result of the heat release rate (HRR) and cylinder pressure was validated with the experimental test data (the engine test was conducted at 1500 rpm at full load conditions). The validated model and its respective boundary conditions were used to investigate the effect of modified combustion chamber profiles on NOx emissions. Modified chambers, such as a bathtub combustion chamber (BTCC) and a shallow depth chamber (SCC), were developed, and their combustion events were analysed with respect to the FCC. This study revealed that combustion events such as fuel distribution, unburnt mass fractions, temperature and turbulent zones directly impact NOx emissions. The modified chambers controlled the spread of combustion and provided better fuel distribution, improving engine performance and combustion rates. The SCC (63.2 bar) showed peak pressure rates compared to the FCC (63.02 bar) and BTCC (62.72 bar). This study concluded that the SCC showed better results than other chambers. This study further recommends conducting lean fuel mixture combustion with chamber modifications and optimising fuel spray, such as by adjusting the fuel injection profile, spray angle and injection timing, which has a better tendency to create complete combustion.

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“…(Song et al, 2023). Diesel fuel emissions are the most significant environmental pollutants that carry multiple Hydrocarbons (HC), Sulphur (S), and residues of crude oil (Azad et al, 2023). Moreover, according to the US Department of Energy Report, the world's oil supply will reach its highest production and soon reach the point of depilation (Doppalapudi et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

Analysis of metal concentration, performance and noise emissions of the CI engine

Mahaser,

Bhangwar,

Khan

et al. 2023

Nat. App. Sci. Int. J.

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Biodiesel is a substitute for diesel fuel and is highly required to control global warming and reduce dependence on limited petroleum reserves. Replacement of diesel fuel is unavoidable due to the depletion of oil reserves and environmental threats to existing life on the earth. This study used single-cylinder, four-stroke Compression Ignition (CI) engines for experimental work. An endurance test was conducted on the engine using diesel fuel (D100) and biodiesel blended fuel for 105 hours at 1300 rpm. During the endurance test, a multi-elemental of lubricant oil was conducted. It was found that the average wear concentration in lubricant oil was lower in biodiesel blended fuel than in diesel fuel. In this regard, elemental reduction was observed as AL (38.8%), Cr (67.7%), Fe (58.2%) and Mn (17.89%), respectively. Besides this, higher viscosity and density of lubricant oil were observed on B30 compared to D100. Furthermore, engine performance was determined and resulted from low brake thermal efficiency in diesel compared to biodiesel. The engine’s noise was also calculated during operating hours at various positions such as front, left and back. It was determined that it was reduced at the mentioned positions for B30 compared to D100.

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A landscape review on biodiesel combustion strategies to reduce emission

Cited by 22 publications

References 278 publications

Design and Simulation of the Biodiesel Process Plant for Sustainable Fuel Production

Design and Simulation of the Biodiesel Process Plant for Sustainable Fuel Production

Advanced Numerical Analysis of In-Cylinder Combustion and NOx Formation Using Different Chamber Geometries

Analysis of metal concentration, performance and noise emissions of the CI engine

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