Blended E85-diesel fuel droplet heating and evaporation

Nawar Hasan Imran Al-Esawi; Mansour Al Qubeissi; Reece Whitaker; Sergei S. Sazhin

doi:10.1021/acs.energyfuels.8b03014

Blended E85-diesel fuel droplet heating and evaporation

Nawar Hasan Imran Al-Esawi, Mansour Al Qubeissi, Reece Whitaker, Sergei S. Sazhin

University of Brighton

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

71 Downloads (Pure)

Abstract

The multi-dimensional quasi-discrete (MDQD) model is applied to the analysis of heating and evaporation of mixtures of E85 (85 vol. % ethanol and 15 vol. % gasoline) with diesel fuel, commonly known as ‘E85-diesel’ blends, using the universal quasi-chemical functional group activity coefficients model for the calculation of vapor pressure. The contribution of 119 components of E85-diesel fuel blends is taken into account, but replaced with smaller number of components/quasi-components, under conditions representative of diesel engines. Our results show that high fractions of E85-diesel fuel blends have a significant impact on the evolutions of droplet radii and surface temperatures. For instance, droplet lifetime and surface temperature for a blend of 50 vol. % E85 and 50 vol. % diesel are 23.2% and up to 3.4% less than those of pure diesel fuel, respectively. The application of the MDQD model has improved the computational efficiency significantly with minimal sacrifice to accuracy. This approach leads to a saving of up to 86.4% of CPU time when reducing the 119 components to 16 components/quasi-components without a sacrifice to the main features of the model.

Original language	English
Pages (from-to)	2477–2488
Number of pages	12
Journal	Energy & Fuels
Volume	33
Issue number	3
Early online date	1 Feb 2019
DOIs	https://doi.org/10.1021/acs.energyfuels.8b03014
Publication status	Published - 21 Mar 2019

Bibliographical note

This document is the Accepted Manuscript version of a Published Work that appeared in final form in Energy & Fuels, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see
https://dx.doi.org/10.1021/acs.energyfuels.8b03014

Keywords

Activity coefficient
Diesel
Ethanol
Evaporation
Fuel blends
Gasoline
Heating and evaporation
Biofuel
Thermodynamics
Fluid drops
CFD
Mathematical modeling
Renewable energy
Heat and Mass Transfer
Combustion

ASJC Scopus subject areas

Fluid Flow and Transfer Processes
Bioengineering
Fuel Technology
Renewable Energy, Sustainability and the Environment
Mechanical Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1021/acs.energyfuels.8b03014

Post-PrintAccepted author manuscript, 853 KB

Cite this

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title = "Blended E85-diesel fuel droplet heating and evaporation",

abstract = "The multi-dimensional quasi-discrete (MDQD) model is applied to the analysis of heating and evaporation of mixtures of E85 (85 vol. \% ethanol and 15 vol. \% gasoline) with diesel fuel, commonly known as {\textquoteleft}E85-diesel{\textquoteright} blends, using the universal quasi-chemical functional group activity coefficients model for the calculation of vapor pressure. The contribution of 119 components of E85-diesel fuel blends is taken into account, but replaced with smaller number of components/quasi-components, under conditions representative of diesel engines. Our results show that high fractions of E85-diesel fuel blends have a significant impact on the evolutions of droplet radii and surface temperatures. For instance, droplet lifetime and surface temperature for a blend of 50 vol. \% E85 and 50 vol. \% diesel are 23.2\% and up to 3.4\% less than those of pure diesel fuel, respectively. The application of the MDQD model has improved the computational efficiency significantly with minimal sacrifice to accuracy. This approach leads to a saving of up to 86.4\% of CPU time when reducing the 119 components to 16 components/quasi-components without a sacrifice to the main features of the model.",

keywords = "Activity coefficient, Diesel, Ethanol, Evaporation, Fuel blends, Gasoline, Heating and evaporation, Biofuel, Thermodynamics, Fluid drops, CFD, Mathematical modeling, Renewable energy, Heat and Mass Transfer, Combustion",

author = "Al-Esawi, \{Nawar Hasan Imran\} and \{Al Qubeissi\}, Mansour and Reece Whitaker and Sazhin, \{Sergei S.\}",

note = "This document is the Accepted Manuscript version of a Published Work that appeared in final form in Energy \& Fuels, copyright {\textcopyright} American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://dx.doi.org/10.1021/acs.energyfuels.8b03014 ",

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AU - Al-Esawi, Nawar Hasan Imran

AU - Al Qubeissi, Mansour

AU - Whitaker, Reece

AU - Sazhin, Sergei S.

N1 - This document is the Accepted Manuscript version of a Published Work that appeared in final form in Energy & Fuels, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://dx.doi.org/10.1021/acs.energyfuels.8b03014

PY - 2019/3/21

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N2 - The multi-dimensional quasi-discrete (MDQD) model is applied to the analysis of heating and evaporation of mixtures of E85 (85 vol. % ethanol and 15 vol. % gasoline) with diesel fuel, commonly known as ‘E85-diesel’ blends, using the universal quasi-chemical functional group activity coefficients model for the calculation of vapor pressure. The contribution of 119 components of E85-diesel fuel blends is taken into account, but replaced with smaller number of components/quasi-components, under conditions representative of diesel engines. Our results show that high fractions of E85-diesel fuel blends have a significant impact on the evolutions of droplet radii and surface temperatures. For instance, droplet lifetime and surface temperature for a blend of 50 vol. % E85 and 50 vol. % diesel are 23.2% and up to 3.4% less than those of pure diesel fuel, respectively. The application of the MDQD model has improved the computational efficiency significantly with minimal sacrifice to accuracy. This approach leads to a saving of up to 86.4% of CPU time when reducing the 119 components to 16 components/quasi-components without a sacrifice to the main features of the model.

AB - The multi-dimensional quasi-discrete (MDQD) model is applied to the analysis of heating and evaporation of mixtures of E85 (85 vol. % ethanol and 15 vol. % gasoline) with diesel fuel, commonly known as ‘E85-diesel’ blends, using the universal quasi-chemical functional group activity coefficients model for the calculation of vapor pressure. The contribution of 119 components of E85-diesel fuel blends is taken into account, but replaced with smaller number of components/quasi-components, under conditions representative of diesel engines. Our results show that high fractions of E85-diesel fuel blends have a significant impact on the evolutions of droplet radii and surface temperatures. For instance, droplet lifetime and surface temperature for a blend of 50 vol. % E85 and 50 vol. % diesel are 23.2% and up to 3.4% less than those of pure diesel fuel, respectively. The application of the MDQD model has improved the computational efficiency significantly with minimal sacrifice to accuracy. This approach leads to a saving of up to 86.4% of CPU time when reducing the 119 components to 16 components/quasi-components without a sacrifice to the main features of the model.

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KW - Fuel blends

KW - Gasoline

KW - Heating and evaporation

KW - Biofuel

KW - Thermodynamics

KW - Fluid drops

KW - CFD

KW - Mathematical modeling

KW - Renewable energy

KW - Heat and Mass Transfer

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ER -

Blended E85-diesel fuel droplet heating and evaporation

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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