Predictions of droplet heating and evaporation: An application to biodiesel, diesel, gasoline and blended fuels

Qubeissi, Mansour Al

doi:10.1016/j.applthermaleng.2018.03.010

Cited by 31 publications

(25 citation statements)

References 14 publications

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“…The heating and evaporation of multi-component fuel droplets are essential processes for various combustion applications [29,30]. These processes have been widely investigated and different models have been proposed in [31,32], and validated in [33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

The Impact of Biodiesel Fuel on Ethanol/Diesel Blends

2019

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The interest in biofuels was stimulated by the fossil fuel depletion and global warming. This work focuses on the impact of biodiesel fuel on ethanol/diesel (ED) fuel blends. The soybean methyl ester was used as a representative composition of typical biodiesel fuels. The heating and evaporation of ethanol–biodiesel–diesel (EBD) blends were investigated using the Discrete–Component (DC) model. The Cetane Number (CN) of the EBD blends was predicted based on the individual hydrocarbon contributions in the mixture. The mixture viscosity was predicted using the Universal Quasi-Chemical Functional group Activity Coefficients and Viscosity (UNIFAC–VISCO) method, and the lower heating value of the mixture was predicted based on the volume fractions and density of species and blends. Results revealed that a mixture of up to 15% biodiesel, 5% ethanol, and 80% diesel fuels had led to small variations in droplet lifetime, CN, viscosity, and heating value of pure diesel, with less than 1.2%, 0.2%, 2%, and 2.2% reduction in those values, respectively.

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Section: Introductionmentioning

confidence: 99%

The Impact of Biodiesel Fuel on Ethanol/Diesel Blends

2019

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“…To conclude, the use of biofuels is expected to contribute to the energy sustainability and reduction of global warming. For instance, many efforts have been made to replace gasoline and diesel fuels with ethanol/gasoline and biodiesel/diesel fuel blends, respectively [11][12][13][14][15][16]. These efforts have been driven mainly by the importance of reducing greenhouse emissions and fossil fuel costs [17][18][19].…”

Section: Concluding Remarkmentioning

confidence: 99%

Introductory Chapter: Biofuels - Challenges and Opportunities

Qubeissi¹

2019

Biofuels - Challenges and Opportunities

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“…Hence, processes of heat and mass transfer between droplets of gas and liquid become very effective. The practice of sprayed liquid is widespread [1][2][3][4][5][6], and therefore boundary conditions for the heat and mass transfer in droplets are rather different. One of the aspects that all liquid spray technologies have in common is the semi-transparent liquid, and therefore it is important to define the regularities to heat transfer and phase change processes that take place in droplets.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Droplet Dispersity on Droplet Vaporization in the High-Temperature Wet Gas Flow in the Case of Combined Heating

et al. 2021

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The change in the thermal and energy state of the water droplet is defined numerically. The influence of droplet dispersity on the interaction of the transfer processes was evaluated. In influence of the Stefan flow was considered as well. The internal heat transfer of the droplet was defined by the combined heat transfer through effective conductivity and radiation model. The results of the numerical modeling of heat and mass transfer in water droplets in a wet flue gas flow of 1000 °C highlight the influence of the variation in heat transfer regimes in the droplet on the interaction of the transfer processes in consistently varying phase change regimes. The results of the investigation shows that the inner heat convection diminishes intensively in the transitional phase change regime because of a rapid slowdown of the slipping droplet in the gas. The radiation absorption in the droplet clearly decreases only at the final stage of equilibrium evaporation. The highlighted regularities of the interaction between combined transfer processes in water droplets are also valid for liquid fuel and other semi-transparent liquids sprayed into high-temperature flue gas flow. However, a qualitative evaluation should consider individual influence of dispersity that different liquids have.

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Predictions of droplet heating and evaporation: An application to biodiesel, diesel, gasoline and blended fuels

Cited by 31 publications

References 14 publications

The Impact of Biodiesel Fuel on Ethanol/Diesel Blends

The Impact of Biodiesel Fuel on Ethanol/Diesel Blends

Introductory Chapter: Biofuels - Challenges and Opportunities

The Influence of Droplet Dispersity on Droplet Vaporization in the High-Temperature Wet Gas Flow in the Case of Combined Heating

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