Experimental and numerical investigation on optimizing energy efficiency and emissions reduction of ammonia fueled combustion with addition of hydrogen and porous media

Renewable Energy, Journal Year: 2025, Volume and Issue: unknown, P. 122422 - 122422

Published: Jan. 1, 2025

Language: Английский

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Effect of Adding Ethanol to Candlenut Seed Biodiesel-Petrodiesel Mixture on Diesel Engine Performance and Emissions

E3S Web of Conferences, Journal Year: 2025, Volume and Issue: 622, P. 01008 - 01008

Published: Jan. 1, 2025

Biodiesel has been used in diesel engine fuel mixtures, yet it constraints of increasing consumption and NOx emissions. Ethanol is an alternative with high oxygen content that can improve combustion quality produce lower exhaust Therefore, this research was done to determine the effect ethanol addition a mixture biodiesel petrodiesel on performance its YANMAR TF 85MH-di tests speed variations 1500 rpm 2100 coupled generator constant load 1000 watt. The results showed B40 achieved highest average effective power produced by 723,68 Watt also torque 3,761 Nm. E10B40 produces best specific 492,19 g/kWh. thermal efficiency at 14,725%. lowest emissions were 139,48 ppm. CO2 1,33%. Based experimental results, 10% (40% candlenut seed (Aleurites moluccana) 60% pertadex) potential recommended advance single-cylinder engines’ reduce emissions, compared other fuels tested study.

Language: Английский

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Fuel Optimization Using Potassium Permanganate (KMnO₄) on Biodiesel and Diesel Blend as an Additive

Heat Transfer, Journal Year: 2025, Volume and Issue: unknown

Published: April 8, 2025

ABSTRACT This study explores the influence of potassium permanganate (KMnO 4 ) as an additive in biodiesel–diesel mixture on combustion, performance, and emissions characteristics a diesel engine. Three fuel blends were prepared tested: pure diesel, 12% waste vegetable biodiesel, 88% (B12), with KMnO (PMB12). Experiments conducted single‐cylinder, water‐cooled, four‐stroke engine at 1500 rpm various load conditions. Results showed that addition enhanced physicochemical features blend. PMB12 exhibited highest in‐cylinder pressure low medium loads while heat release rate values found to be lowest. It also demonstrated shorter ignition delay higher mean gas temperature. Adding deteriorated brake‐specific consumption up 16% compared diesel. Brake thermal efficiency blend good obtaining same value medium, it was decreased by 8.6% for high load. Emission analysis revealed carbon dioxide increased but remained relatively stable across test fuels. Nitrogen oxides obtained 14%. Hydrocarbon varied load, B12 showing operations.

Language: Английский

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Exploring the Effects of Synergistic Combustion of Alcohols and Biodiesel on Combustion Performance and Emissions of Diesel Engines: A Review

Energies, Journal Year: 2024, Volume and Issue: 17(24), P. 6274 - 6274

Published: Dec. 12, 2024

Diesel engines are extensively employed in transportation, agriculture, and industry due to their high thermal efficiency fuel economy. However, the combustion of conventional diesel is accompanied by substantial emissions pollutants, including carbon monoxide (CO), hydrocarbons (HC), nitrogen oxides (NOx), dioxide (CO2), posing significant threats environmental quality. Biodiesel, as a renewable cleaner alternative fuel, can significantly reduce CO, HC, particulate matter (PM) its unique molecular structure. Nonetheless, lower calorific value poor cold-start performance limit application, while oxygen content may contribute increased NOx emissions. To address these limitations, researchers have proposed blending biodiesel with alcohol-based fuels such methanol, ethanol, or butanol create synergistic systems that optimize engine emission characteristics. This paper systematically reviews effects alcohol on characteristics blends engines. Studies indicate addition enhance improving atomization, extending ignition delay, increasing premixed efficiency. These enhancements result higher cylinder pressure, net heat release rate (HRR), brake (BTE), reducing brake-specific consumption (BSFC) some extent. Moreover, most studies report help smoke, but tend increase CO2 findings suggest certain cases, opposite results occur. The impact different types varies significantly, requiring comprehensive evaluation properties, latent heat, viscosity, content. Although appropriate demonstrates potential for optimizing emissions, excessive lead adverse effects, necessitating careful control ratio. Future research should consider mixing two more explore beyond capabilities single alcohols. Additionally, further focus compositions strategies varying operating conditions.

Language: Английский

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Optimization and simulation of Tucuma and Ungurahui biodiesel process parameters and their effects on fuel properties

Energy Conversion and Management X, Journal Year: 2024, Volume and Issue: unknown, P. 100721 - 100721

Published: Sept. 1, 2024

Language: Английский

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Pragmatic investigation of the effect of ether additives on biodiesel combustion to reduce NOx and other harmful emissions

Fuel, Journal Year: 2024, Volume and Issue: 382, P. 133712 - 133712

Published: Nov. 14, 2024

Language: Английский

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Energy, exergy analysis, and sustainability assessment of CI engine performance using graphene oxide and n-Butanol, DEE fuel additives blended with biodiesel-diesel fuel blend

Emergent Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 22, 2024

Language: Английский

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Emission analysis of combustion of cashew nutshell biodiesel in a toroidal combustion chamber: an experimental study

International Journal of Environmental Science and Technology, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 20, 2024

Language: Английский

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Assessment of ternary blend ratio of diesel/mahua biodiesel with n-heptane/fusel alcohol on CI engine characteristics – an experimental and statistical approach

Proceedings of the Institution of Mechanical Engineers Part E Journal of Process Mechanical Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 21, 2024

In this study, optimised ternary fuel blend for diesel, mahua biodiesel, n-heptane/fusel alcohol and engine load are established improved performance, combustion emission parameters on a compression ignition (CI) by experimental statistical approach. The diesel-biodiesel (30%) with either n-heptane (5%, 10% 15%) or fusel (5% 10%) were studied at loads (25%, 50%, 75% 100%). From L27 experiments, predictions optimisation done using desirability-based response surface methodology (RSM). optimal found to be 9.5% 8.4% along M30 biodiesel 78.6% 80.2% load, respectively. best engine's output generated considering due weightages based the implication peak CP: 71.30 bar, HRR:65.10 J/°CA, BTE :32.71%, BSFC: 0.2383 kg/kWh, CO: 0.0754%, CO 2 : 8.9%, HC: 63.11 ppm, smoke: 11.43 N, NOx: 921.54 ppm blend. Validation of numerical data has been through actual trials. results suggest that blends will serve as feasible alternative CI engines.

Language: Английский

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Fluid Phase Behavior of the Licuri (Syagrus coronata) Fatty Acid Ethyl Ester + Glycerol + Ethanol Mixtures at Different Temperatures—Experimental and Thermodynamic Modeling

Processes, Journal Year: 2024, Volume and Issue: 12(12), P. 2624 - 2624

Published: Nov. 22, 2024

This study provides experimental insights into the liquid–liquid equilibrium (LLE) of a system consisting fatty acid ethyl ester (FAEE) derived from licuri oil, glycerol, and ethanol, evaluated at various temperatures standard atmospheric pressures. FAEE was synthesized through transesterification oil using NaOH as catalyst. The liquid phase compositions were assessed via titration, results consistent with solubility curves overall compositions. Data reliability confirmed Hand Othmer-Tobias correlations, determination coefficient (R2) 1, validating dependability results. NRTL model employed to correlate LLE data, yielding root-mean-square deviation (RMSD) approximately 1.20%, signifying strong correlation uncertainties. selectivity (S) distribution (D) parameters indicated efficacy glycerol in system, S values exceeding 1 under all conditions tested. investigation is crucial for biodiesel production, highlighting potential renewable feedstock importance studies separation processes production products.

Language: Английский

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