An experimental evaluation of thermophysical properties of colloidal suspension of carbon-rich fly ash microparticles and single-walled carbon nanotubes in Jet-A fuel and its impact on evaporation and burning rate
This study presents an experimental evaluation of the thermophysical properties of colloidal suspensions of carbon-rich fly ash microparticles (CFA) and single-walled carbon nanotubes (SWCNT) in Jet-A fuel, focusing on their impact on evaporation and burning rates. The research explores the effects...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-12-01
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| Series: | Fuel Processing Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0378382024001255 |
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| author | Ahmed Aboalhamayie Nadeem Ahmad Yang Zhang Mohsen Ghamari Numan Salah Jameel Alshahrani |
| author_facet | Ahmed Aboalhamayie Nadeem Ahmad Yang Zhang Mohsen Ghamari Numan Salah Jameel Alshahrani |
| author_sort | Ahmed Aboalhamayie |
| collection | DOAJ |
| description | This study presents an experimental evaluation of the thermophysical properties of colloidal suspensions of carbon-rich fly ash microparticles (CFA) and single-walled carbon nanotubes (SWCNT) in Jet-A fuel, focusing on their impact on evaporation and burning rates. The research explores the effects of these carbon-based additives on key parameters such as thermal conductivity, viscosity, surface tension, evaporation rate, and combustion behavior. Utilizing a hybrid preparation method combining sonication and surfactants, stable colloidal suspensions were prepared for experimental analysis. The results demonstrate that both CFA and SWCNT enhance the thermal conductivity of Jet-A fuel, with SWCNT achieving a notable 13 % increase at a 1 wt% concentration, while CFA achieves an 8 % increase at a 3 wt% concentration. The study also reveals distinct trends in viscosity and surface tension, with SWCNT causing a significant non-linear increase in viscosity compared to CFA. In combustion experiments, the evaporation rates of CFA and SWCNT suspensions showed considerable improvement, with CFA demonstrating up to an 87 % increase at 1 wt% concentration. The study concludes with an analysis of ignition delay, highlighting the superior performance of SWCNT in reducing ignition time due to their high thermal conductivity and the presence of iron nanoparticles on their surface. |
| format | Article |
| id | doaj-art-d668a181be0445eaad3a9ae68f032b3d |
| institution | Kabale University |
| issn | 0378-3820 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Fuel Processing Technology |
| spelling | doaj-art-d668a181be0445eaad3a9ae68f032b3d2024-12-01T05:06:29ZengElsevierFuel Processing Technology0378-38202024-12-01266108155An experimental evaluation of thermophysical properties of colloidal suspension of carbon-rich fly ash microparticles and single-walled carbon nanotubes in Jet-A fuel and its impact on evaporation and burning rateAhmed Aboalhamayie0Nadeem Ahmad1Yang Zhang2Mohsen Ghamari3Numan Salah4Jameel Alshahrani5Department of Mechanical Engineering, The University of Sheffield, Sheffield S1 3JD, United Kingdom; Corresponding author at: The University of Sheffield, Department of Mechanical Engineering, Sir Frederick Mappin Building, Sheffield S1 3JD, United Kingdom.Department of Mechanical and Electrical Engineering, Wilkes University, Wilkes-Barre, PA 18766, USADepartment of Mechanical Engineering, The University of Sheffield, Sheffield S1 3JD, United KingdomDepartment of Mechanical and Electrical Engineering, Wilkes University, Wilkes-Barre, PA 18766, USACenter of Nanotechnology, King Abdul Aziz University, Jeddah 21589, Saudi ArabiaMA'ADEN, Riyadh 11537, Saudi ArabiaThis study presents an experimental evaluation of the thermophysical properties of colloidal suspensions of carbon-rich fly ash microparticles (CFA) and single-walled carbon nanotubes (SWCNT) in Jet-A fuel, focusing on their impact on evaporation and burning rates. The research explores the effects of these carbon-based additives on key parameters such as thermal conductivity, viscosity, surface tension, evaporation rate, and combustion behavior. Utilizing a hybrid preparation method combining sonication and surfactants, stable colloidal suspensions were prepared for experimental analysis. The results demonstrate that both CFA and SWCNT enhance the thermal conductivity of Jet-A fuel, with SWCNT achieving a notable 13 % increase at a 1 wt% concentration, while CFA achieves an 8 % increase at a 3 wt% concentration. The study also reveals distinct trends in viscosity and surface tension, with SWCNT causing a significant non-linear increase in viscosity compared to CFA. In combustion experiments, the evaporation rates of CFA and SWCNT suspensions showed considerable improvement, with CFA demonstrating up to an 87 % increase at 1 wt% concentration. The study concludes with an analysis of ignition delay, highlighting the superior performance of SWCNT in reducing ignition time due to their high thermal conductivity and the presence of iron nanoparticles on their surface.http://www.sciencedirect.com/science/article/pii/S0378382024001255Carbon-rich fly ash (CFA)Ignition delaySingle-walled carbon nanotube (SWCNT)Evaporation rateSurface tensionThermal conductivity |
| spellingShingle | Ahmed Aboalhamayie Nadeem Ahmad Yang Zhang Mohsen Ghamari Numan Salah Jameel Alshahrani An experimental evaluation of thermophysical properties of colloidal suspension of carbon-rich fly ash microparticles and single-walled carbon nanotubes in Jet-A fuel and its impact on evaporation and burning rate Fuel Processing Technology Carbon-rich fly ash (CFA) Ignition delay Single-walled carbon nanotube (SWCNT) Evaporation rate Surface tension Thermal conductivity |
| title | An experimental evaluation of thermophysical properties of colloidal suspension of carbon-rich fly ash microparticles and single-walled carbon nanotubes in Jet-A fuel and its impact on evaporation and burning rate |
| title_full | An experimental evaluation of thermophysical properties of colloidal suspension of carbon-rich fly ash microparticles and single-walled carbon nanotubes in Jet-A fuel and its impact on evaporation and burning rate |
| title_fullStr | An experimental evaluation of thermophysical properties of colloidal suspension of carbon-rich fly ash microparticles and single-walled carbon nanotubes in Jet-A fuel and its impact on evaporation and burning rate |
| title_full_unstemmed | An experimental evaluation of thermophysical properties of colloidal suspension of carbon-rich fly ash microparticles and single-walled carbon nanotubes in Jet-A fuel and its impact on evaporation and burning rate |
| title_short | An experimental evaluation of thermophysical properties of colloidal suspension of carbon-rich fly ash microparticles and single-walled carbon nanotubes in Jet-A fuel and its impact on evaporation and burning rate |
| title_sort | experimental evaluation of thermophysical properties of colloidal suspension of carbon rich fly ash microparticles and single walled carbon nanotubes in jet a fuel and its impact on evaporation and burning rate |
| topic | Carbon-rich fly ash (CFA) Ignition delay Single-walled carbon nanotube (SWCNT) Evaporation rate Surface tension Thermal conductivity |
| url | http://www.sciencedirect.com/science/article/pii/S0378382024001255 |
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