Experimental study on flow properties of jojoba oil-diesel fuel blends with/without alcohols additives
The flow characteristics of different jojoba oil–diesel fuel blends (JDFBs) with and without additives (diethyl ether or Butanol at 5, 10 or 15 %) were experimentally examined to assess their flow performance in comparison with diesel fuel. The density and kinematic viscosity of jojoba oil, diesel f...
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Elsevier
2025-05-01
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| Series: | International Journal of Thermofluids |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666202725001740 |
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| author | Mamdouh Ghannam Mohamed Y.E. Selim Ahmed Thaher Budoor Aljneibi Fajr Alhammadi Buthaina Albreiki |
| author_facet | Mamdouh Ghannam Mohamed Y.E. Selim Ahmed Thaher Budoor Aljneibi Fajr Alhammadi Buthaina Albreiki |
| author_sort | Mamdouh Ghannam |
| collection | DOAJ |
| description | The flow characteristics of different jojoba oil–diesel fuel blends (JDFBs) with and without additives (diethyl ether or Butanol at 5, 10 or 15 %) were experimentally examined to assess their flow performance in comparison with diesel fuel. The density and kinematic viscosity of jojoba oil, diesel fuel, and their blends were measured using an SVM 3000 Stabinger Viscometer (Anton Paar). Rheograms and viscosity–shear rate profiles were derived using the MCR 92 Modular Compact Rheometer. The density of pure diesel fuel increases slightly upon the addition of jojoba oil. For example, at 40 °C, the density increases from 0.813 g/cm3 for pure diesel to 0.87 g/cm3 for the JDFB with 50 % jojoba oil content. Moreover, the kinematic viscosity increases gradually with jojoba oil content, ranging from 4.06 cSt for pure diesel to 4.76, 9.16, and 20.30 cSt for JDFBs containing 10 %, 25 %, and 50 % jojoba oil at 20 °C, respectively. The power-law model can predict the flow behavior of JDFBs up to 50 % jojoba oil content. The dynamic viscosity increases from 3.60 mPa.s for pure diesel to 4.97, 6.75, and 12.17 mPa.s for JDFBs containing 10 %, 25 %, and 50 % jojoba oil, respectively, at 20 °C. The increase in the viscosity of the blend was managed either by heating and / or adding non-viscous alcohols. At 60 °C, the viscosity reduction reaches approximately 64 % for the JDFB with 50 % jojoba oil content. The viscosity reduction is more notable when using diethyl ether as an additive than when using butanol. For instance, the 15 % of Butanol addition, caused the viscosity of the blend to be very much comparable to the diesel fuel. |
| format | Article |
| id | doaj-art-73f200e12a2d46939cf883408aa18ef0 |
| institution | OA Journals |
| issn | 2666-2027 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Thermofluids |
| spelling | doaj-art-73f200e12a2d46939cf883408aa18ef02025-08-20T02:30:14ZengElsevierInternational Journal of Thermofluids2666-20272025-05-012710122710.1016/j.ijft.2025.101227Experimental study on flow properties of jojoba oil-diesel fuel blends with/without alcohols additivesMamdouh Ghannam0Mohamed Y.E. Selim1Ahmed Thaher2Budoor Aljneibi3Fajr Alhammadi4Buthaina Albreiki5Corresponding author.; Dept. of Chemical and Petroleum Engineering, College of Engineering, United Arab Emirates University, Al-Ain, United Arab EmiratesMechanical and Aerospace Eng. Dept., College of Engineering, United Arab Emirates University, Al-Ain, United Arab EmiratesMechanical and Aerospace Eng. Dept., College of Engineering, United Arab Emirates University, Al-Ain, United Arab EmiratesDept. of Chemical and Petroleum Engineering, College of Engineering, United Arab Emirates University, Al-Ain, United Arab EmiratesDept. of Chemical and Petroleum Engineering, College of Engineering, United Arab Emirates University, Al-Ain, United Arab EmiratesDept. of Chemical and Petroleum Engineering, College of Engineering, United Arab Emirates University, Al-Ain, United Arab EmiratesThe flow characteristics of different jojoba oil–diesel fuel blends (JDFBs) with and without additives (diethyl ether or Butanol at 5, 10 or 15 %) were experimentally examined to assess their flow performance in comparison with diesel fuel. The density and kinematic viscosity of jojoba oil, diesel fuel, and their blends were measured using an SVM 3000 Stabinger Viscometer (Anton Paar). Rheograms and viscosity–shear rate profiles were derived using the MCR 92 Modular Compact Rheometer. The density of pure diesel fuel increases slightly upon the addition of jojoba oil. For example, at 40 °C, the density increases from 0.813 g/cm3 for pure diesel to 0.87 g/cm3 for the JDFB with 50 % jojoba oil content. Moreover, the kinematic viscosity increases gradually with jojoba oil content, ranging from 4.06 cSt for pure diesel to 4.76, 9.16, and 20.30 cSt for JDFBs containing 10 %, 25 %, and 50 % jojoba oil at 20 °C, respectively. The power-law model can predict the flow behavior of JDFBs up to 50 % jojoba oil content. The dynamic viscosity increases from 3.60 mPa.s for pure diesel to 4.97, 6.75, and 12.17 mPa.s for JDFBs containing 10 %, 25 %, and 50 % jojoba oil, respectively, at 20 °C. The increase in the viscosity of the blend was managed either by heating and / or adding non-viscous alcohols. At 60 °C, the viscosity reduction reaches approximately 64 % for the JDFB with 50 % jojoba oil content. The viscosity reduction is more notable when using diethyl ether as an additive than when using butanol. For instance, the 15 % of Butanol addition, caused the viscosity of the blend to be very much comparable to the diesel fuel.http://www.sciencedirect.com/science/article/pii/S2666202725001740Diesel fuelJojoba oilFuel blendDensityViscosityFlow properties |
| spellingShingle | Mamdouh Ghannam Mohamed Y.E. Selim Ahmed Thaher Budoor Aljneibi Fajr Alhammadi Buthaina Albreiki Experimental study on flow properties of jojoba oil-diesel fuel blends with/without alcohols additives International Journal of Thermofluids Diesel fuel Jojoba oil Fuel blend Density Viscosity Flow properties |
| title | Experimental study on flow properties of jojoba oil-diesel fuel blends with/without alcohols additives |
| title_full | Experimental study on flow properties of jojoba oil-diesel fuel blends with/without alcohols additives |
| title_fullStr | Experimental study on flow properties of jojoba oil-diesel fuel blends with/without alcohols additives |
| title_full_unstemmed | Experimental study on flow properties of jojoba oil-diesel fuel blends with/without alcohols additives |
| title_short | Experimental study on flow properties of jojoba oil-diesel fuel blends with/without alcohols additives |
| title_sort | experimental study on flow properties of jojoba oil diesel fuel blends with without alcohols additives |
| topic | Diesel fuel Jojoba oil Fuel blend Density Viscosity Flow properties |
| url | http://www.sciencedirect.com/science/article/pii/S2666202725001740 |
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