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Effects of dispersed multiwalled carbon nanotubes on the micro-explosion and combustion characteristics of 2-methylfuran – diesel mixture droplets

Isolated droplet combustion experiments have been carried out on neat diesel, a 15 vol% 2-methylfuran – 85 vol% diesel mixture (MF15), and nanofuels made from MF15 base fuel with addition of multiwalled carbon nanotubes (MWCNTs) at 25 ppm, 50 ppm, and 100 ppm concentrations (referred to as MF15C25,...

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Main Authors: Ittoo, Bhavishkar, Ooi, Jong Boon, Tran, Manh Vu, Jaliliantabar, Farzad, Najafi, Gholamhassan, Swamy, Varghese
Format: Article
Language:English
English
Published: Elsevier Ltd 2022
Subjects:
T Technology (General)
TA Engineering (General). Civil engineering (General)
TJ Mechanical engineering and machinery
TL Motor vehicles. Aeronautics. Astronautics
Online Access:http://umpir.ump.edu.my/id/eprint/42640/1/Effects%20of%20dispersed%20multiwalled%20carbon%20nanotubes.pdf
http://umpir.ump.edu.my/id/eprint/42640/2/Effects%20of%20dispersed%20multiwalled%20carbon%20nanotubes%20on%20the%20micro-explosion%20and%20combustion%20characteristics%20of%202-methylfuran%20%E2%80%93%20diesel%20mixture%20droplets_ABS.pdf
http://umpir.ump.edu.my/id/eprint/42640/
https://doi.org/10.1016/j.fuel.2022.123308
https://doi.org/10.1016/j.fuel.2022.123308
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spelling my.ump.umpir.426402024-10-03T04:25:25Z http://umpir.ump.edu.my/id/eprint/42640/ Effects of dispersed multiwalled carbon nanotubes on the micro-explosion and combustion characteristics of 2-methylfuran – diesel mixture droplets Ittoo, Bhavishkar Ooi, Jong Boon Tran, Manh Vu Jaliliantabar, Farzad Najafi, Gholamhassan Swamy, Varghese T Technology (General) TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery TL Motor vehicles. Aeronautics. Astronautics Isolated droplet combustion experiments have been carried out on neat diesel, a 15 vol% 2-methylfuran – 85 vol% diesel mixture (MF15), and nanofuels made from MF15 base fuel with addition of multiwalled carbon nanotubes (MWCNTs) at 25 ppm, 50 ppm, and 100 ppm concentrations (referred to as MF15C25, MF15C50, and MF15C100). Compared to MF15, the nanofuels displayed increased micro-explosion intensity and reduced micro-explosion occurrences, both effects being more pronounced at higher MWCNTs loadings. This behavior is attributed to the higher surface tension and viscosity of the nanofuels compared to that of MF15. The ignition delay decreased from 2.33 s to 1.71 s, the combustion rate constant increased from 0.82 mm2 s−1 to 1.01 mm2 s−1, and the combustion period reduced from 5.31 s to 4.54 s when going from pure MF15 to MF15C50. The improved combustion characteristics can be related to the superior thermal conductivity and large specific surface area of the dispersed MWCNTs in the nanofuels. The combustion characteristics of the nanofuel deteriorate at the highest MWCNTs dosing investigated here, possibly due to nanoparticle agglomeration. Overall, the present results suggest that dosing of MWCNTs at optimum levels improves the thermal efficiency and reduces the NOx emissions upon combustion of MF-diesel blends. Elsevier Ltd 2022-05-15 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/42640/1/Effects%20of%20dispersed%20multiwalled%20carbon%20nanotubes.pdf pdf en http://umpir.ump.edu.my/id/eprint/42640/2/Effects%20of%20dispersed%20multiwalled%20carbon%20nanotubes%20on%20the%20micro-explosion%20and%20combustion%20characteristics%20of%202-methylfuran%20%E2%80%93%20diesel%20mixture%20droplets_ABS.pdf Ittoo, Bhavishkar and Ooi, Jong Boon and Tran, Manh Vu and Jaliliantabar, Farzad and Najafi, Gholamhassan and Swamy, Varghese (2022) Effects of dispersed multiwalled carbon nanotubes on the micro-explosion and combustion characteristics of 2-methylfuran – diesel mixture droplets. Fuel, 316 (123308). pp. 1-10. ISSN 0016-2361. (Published) https://doi.org/10.1016/j.fuel.2022.123308 https://doi.org/10.1016/j.fuel.2022.123308
institution Universiti Malaysia Pahang Al-Sultan Abdullah
building UMPSA Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang Al-Sultan Abdullah
content_source UMPSA Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
English
topic T Technology (General)
TA Engineering (General). Civil engineering (General)
TJ Mechanical engineering and machinery
TL Motor vehicles. Aeronautics. Astronautics
spellingShingle T Technology (General)
TA Engineering (General). Civil engineering (General)
TJ Mechanical engineering and machinery
TL Motor vehicles. Aeronautics. Astronautics
Ittoo, Bhavishkar
Ooi, Jong Boon
Tran, Manh Vu
Jaliliantabar, Farzad
Najafi, Gholamhassan
Swamy, Varghese
Effects of dispersed multiwalled carbon nanotubes on the micro-explosion and combustion characteristics of 2-methylfuran – diesel mixture droplets
description Isolated droplet combustion experiments have been carried out on neat diesel, a 15 vol% 2-methylfuran – 85 vol% diesel mixture (MF15), and nanofuels made from MF15 base fuel with addition of multiwalled carbon nanotubes (MWCNTs) at 25 ppm, 50 ppm, and 100 ppm concentrations (referred to as MF15C25, MF15C50, and MF15C100). Compared to MF15, the nanofuels displayed increased micro-explosion intensity and reduced micro-explosion occurrences, both effects being more pronounced at higher MWCNTs loadings. This behavior is attributed to the higher surface tension and viscosity of the nanofuels compared to that of MF15. The ignition delay decreased from 2.33 s to 1.71 s, the combustion rate constant increased from 0.82 mm2 s−1 to 1.01 mm2 s−1, and the combustion period reduced from 5.31 s to 4.54 s when going from pure MF15 to MF15C50. The improved combustion characteristics can be related to the superior thermal conductivity and large specific surface area of the dispersed MWCNTs in the nanofuels. The combustion characteristics of the nanofuel deteriorate at the highest MWCNTs dosing investigated here, possibly due to nanoparticle agglomeration. Overall, the present results suggest that dosing of MWCNTs at optimum levels improves the thermal efficiency and reduces the NOx emissions upon combustion of MF-diesel blends.
format Article
author Ittoo, Bhavishkar
Ooi, Jong Boon
Tran, Manh Vu
Jaliliantabar, Farzad
Najafi, Gholamhassan
Swamy, Varghese
author_facet Ittoo, Bhavishkar
Ooi, Jong Boon
Tran, Manh Vu
Jaliliantabar, Farzad
Najafi, Gholamhassan
Swamy, Varghese
author_sort Ittoo, Bhavishkar
title Effects of dispersed multiwalled carbon nanotubes on the micro-explosion and combustion characteristics of 2-methylfuran – diesel mixture droplets
title_short Effects of dispersed multiwalled carbon nanotubes on the micro-explosion and combustion characteristics of 2-methylfuran – diesel mixture droplets
title_full Effects of dispersed multiwalled carbon nanotubes on the micro-explosion and combustion characteristics of 2-methylfuran – diesel mixture droplets
title_fullStr Effects of dispersed multiwalled carbon nanotubes on the micro-explosion and combustion characteristics of 2-methylfuran – diesel mixture droplets
title_full_unstemmed Effects of dispersed multiwalled carbon nanotubes on the micro-explosion and combustion characteristics of 2-methylfuran – diesel mixture droplets
title_sort effects of dispersed multiwalled carbon nanotubes on the micro-explosion and combustion characteristics of 2-methylfuran – diesel mixture droplets
publisher Elsevier Ltd
publishDate 2022
url http://umpir.ump.edu.my/id/eprint/42640/1/Effects%20of%20dispersed%20multiwalled%20carbon%20nanotubes.pdf
http://umpir.ump.edu.my/id/eprint/42640/2/Effects%20of%20dispersed%20multiwalled%20carbon%20nanotubes%20on%20the%20micro-explosion%20and%20combustion%20characteristics%20of%202-methylfuran%20%E2%80%93%20diesel%20mixture%20droplets_ABS.pdf
http://umpir.ump.edu.my/id/eprint/42640/
https://doi.org/10.1016/j.fuel.2022.123308
https://doi.org/10.1016/j.fuel.2022.123308
_version_ 1822924695541907456
score 13.235318

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