Estimation of surface tension of fatty acid methyl ester and biodiesel at different temperatures

Phankosol, Suriya; Sudaprasert, Kaokanya; Lilitchan, Supathra; Aryusuk, Kornkanok; Krisnangkura, Kanit

doi:10.1016/j.fuel.2014.02.054

Cited by 44 publications

(20 citation statements)

References 32 publications

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“…The surface tension of biodiesel is closely related to its molecular structure and is influenced by the length of fatty acid hydrocarbon chains and the number of unsaturated bonds [36,39]. Long chains of fatty acid hydrocarbons in the molecular structure lead to higher surface tension.…”

Section: Surface Tensionmentioning

confidence: 99%

Review of Experimental and Computational Studies on Spray, Combustion, Performance, and Emission Characteristics of Biodiesel Fueled Engines

Ágarwal

Park

Dhar

et al. 2018

Journal of Energy Resources Technology

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Biodiesel has emerged as a suitable alternative to mineral diesel in compression ignition (CI) engines in order to ensure global energy security and to reduce engine out emissions in near future. Biodiesel derived from various feedstocks available worldwide fits well in the current fuel supply arrangement for transport sector. However, biodiesel as an alternative transportation fuel has been extensively investigated because of differences in its important fuel properties compared with baseline mineral diesel. Since fuel properties greatly influence spray development, combustion, and emission formation in internal combustion (IC) engines, a number of experimental and computational studies on biodiesel usage in CI engines have been performed to determine its brake thermal efficiency (BTE), gaseous emissions, durability, etc., by various researchers using variety of engines and feedstocks. In the present paper, a critical review of the effect of biodiesel's fuel properties on engine performance, emissions, and combustion characteristics in existing diesel engines vis-a-vis conventional diesel has been undertaken. In addition, the progress and advances of numerical modeling involving biodiesel are also reviewed to determine the effect of fuel properties on spray evolution and development of reaction mechanisms for biodiesel combustion simulations. Fuel properties are discussed in two categories: physical and chemical properties, which are key parameters affecting spray and combustion processes. Subsequent sections review spray, combustion, emissions, and performance characteristics of biodiesels under various engine operation conditions. In the last section of this review paper, numerical modeling of biodiesel covering recent numerical models and schemes to understand the behavior of biodiesel combustion and pollutants formation is included. This review paper comprehensively summarizes biodiesel fuel's (BDFs) spray, combustion, and emission characteristics using experimental and numerical approaches. Limitations and scope for future studies are discussed in each section.

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Section: Surface Tensionmentioning

confidence: 99%

Review of Experimental and Computational Studies on Spray, Combustion, Performance, and Emission Characteristics of Biodiesel Fueled Engines

Ágarwal

Park

Dhar

et al. 2018

Journal of Energy Resources Technology

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“…Keywords Biodiesel · Density · Dynamic viscosity · Gibbs energy · Kinematic viscosity · Fatty acid methyl ester models for estimation of density [1][2][3][4] and kinematic and dynamic viscosities [5][6][7][8][9][10]. Recently, two mathematical models based on Gibbs energy additivity were used for estimation of density [4] and kinematic viscosity [11] of fatty acid methyl esters (FAMEs) and biodiesel. In this study, energies from different processes can be summed for estimation of dynamic viscosity of FAMEs and biodiesel.…”

Section: Introductionmentioning

confidence: 99%

Energy Additivity Approaches to QSPR Modeling in Estimation of Dynamic Viscosity of Fatty Acid Methyl Ester and Biodiesel

Krisnangkura

Aryusuk

Phankosol

et al. 2016

J Americ Oil Chem Soc

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Viscosity is an important physical property of fatty acid methyl esters (FAME) and biodiesel (mixture of FAMEs). In this work, quantitative structure–property relationship (QSPR) for estimation of dynamic viscosity of FAMEs and biodiesel is approached via the Gibbs energy additivity method. The Gibbs energy of dynamic viscous flow is simply derived from the sum of the Gibbs energy of kinematic viscous flow and Gibbs energy of volumetric expansion. The derived model can be used for estimation of dynamic viscosity of saturated and unsaturated FAMEs commonly found in nature. Also, the proposed model can be extended to a mixture of FAMEs or biodiesel as well as biodiesel blends. Thus, the dynamic viscosity of FAMEs as well as neat and blended biodiesels can be estimated by the same equation from the carbon number (z) and number of double bonds (nd) at different temperature (T). The average absolute deviation (AAD) values for saturated, unsaturated FAMEs, biodiesels, and biodiesel blends (at 20–100 °C) are approximately the same as the original model for estimation of kinematic viscosity.

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“…It involves introduction of a weight factor (of each of the fatty acid methyl esters constituent of the fuel) to correct the error associated with Dalton type mass-average equation [9]. The added weight factor thereby complicates the method of calculation [8]. Another similar approach that estimates surface tension of biodiesel by adopting Dalton type mass-average equation emerged subsequently [4].…”

Section: Introductionmentioning

confidence: 99%

“…In this case, surface tension of constituent fatty acid methyl esters were obtained from the indices of topological structure which further requires weight factor in surface tension estimation. Another approach adopted in estimating surface tension is the correlation of excess Gibbs free energy with Wilson equation as well as surface tension to Gibbs free energy [8]. However, the obtained equation is quite complicated.…”

Section: Introductionmentioning

confidence: 99%

Estimation of surface tension of methyl esters biodiesels using computational intelligence technique

Owolabi

Gondal

2015

Applied Soft Computing

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Estimation of surface tension of fatty acid methyl ester and biodiesel at different temperatures

Cited by 44 publications

References 32 publications

Review of Experimental and Computational Studies on Spray, Combustion, Performance, and Emission Characteristics of Biodiesel Fueled Engines

Review of Experimental and Computational Studies on Spray, Combustion, Performance, and Emission Characteristics of Biodiesel Fueled Engines

Energy Additivity Approaches to QSPR Modeling in Estimation of Dynamic Viscosity of Fatty Acid Methyl Ester and Biodiesel

Estimation of surface tension of methyl esters biodiesels using computational intelligence technique

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