Effect of ambient temperature on the puffing characteristics of single butanol-hexadecane droplet

Zhang, Y; Huang, R; Huang, Y; Huang, S; Ma, Y; Xu, S; Zhou, P

Effect of ambient temperature on the puffing characteristics of single butanol-hexadecane droplet

Zhang, Y Huang, R Huang, Y

Huang, S Ma, Y Xu, S Zhou, P

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Publication Type:: Journal Article
Citation:: Energy, 2018, 145 pp. 430 - 441
Issue Date:: 2018-02-15

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Field	Value	Language
dc.contributor.author	Zhang, Y	en_US
dc.contributor.author	Huang, R	en_US
dc.contributor.author	Huang, Y https://orcid.org/0000-0001-9800-8788	en_US
dc.contributor.author	Huang, S	en_US
dc.contributor.author	Ma, Y	en_US
dc.contributor.author	Xu, S	en_US
dc.contributor.author	Zhou, P	en_US
dc.date.available	2020-05-25T19:08:35Z
dc.date.issued	2018-02-15	en_US
dc.identifier.citation	Energy, 2018, 145 pp. 430 - 441	en_US
dc.identifier.issn	0360-5442	en_US
dc.identifier.uri	http://hdl.handle.net/10453/131502
dc.description.abstract	© 2018 Elsevier Ltd Puffing characteristics of BUT50 (50% n-butanol and 50% n-hexadecane by mass) were investigated using the droplet suspension technology under 638, 688 and 738 K. Experimental results showed that BUT50 underwent transient heating, fluctuation evaporation and equilibrium evaporation phases under all ambient temperatures. In the fluctuation evaporation phase, the fluctuation frequency of 738 K was higher than that of 638 K. (Dmax/D0)2 of 738 K was lower than that of 638 K. Easy bubble rupture led to high fluctuation frequency and low (Dmax/D0)2 at 738 K. Three turning points were found in transient temperature growth rate at 638 and 738 K. Four characteristic droplet temperatures were analyzed, including droplet temperatures at the start (T1) and end (T2) of transient heating phase, at (Dmax/D0)2 (T3) and at the end of total lifetime (T4). T2 was slightly lower and T3 was slightly higher than the boiling point of n-butanol. T4 was lower than the boiling point of n-hexadecane. Furthermore, the transient heating duration (tTH), fluctuation evaporation duration (tFE) and total lifetime (tTL) decreased with increasing ambient temperature. The reduction of tFE played an important role in the decrease of tTL. The percentages of tTH/tTL and tFE/tTL were stable with increasing ambient temperature.	en_US
dc.relation.ispartof	Energy	en_US
dc.relation.isbasedon	10.1016/j.energy.2017.12.158	en_US
dc.subject.classification	Energy	en_US
dc.title	Effect of ambient temperature on the puffing characteristics of single butanol-hexadecane droplet	en_US
dc.type	Journal Article
utslib.citation.volume	145	en_US
utslib.for	0913 Mechanical Engineering	en_US
utslib.for	0915 Interdisciplinary Engineering	en_US
utslib.for	0914 Resources Engineering and Extractive Metallurgy	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	open_access
pubs.publication-status	Published	en_US
pubs.volume	145	en_US

Abstract:

© 2018 Elsevier Ltd Puffing characteristics of BUT50 (50% n-butanol and 50% n-hexadecane by mass) were investigated using the droplet suspension technology under 638, 688 and 738 K. Experimental results showed that BUT50 underwent transient heating, fluctuation evaporation and equilibrium evaporation phases under all ambient temperatures. In the fluctuation evaporation phase, the fluctuation frequency of 738 K was higher than that of 638 K. (Dmax/D0)2 of 738 K was lower than that of 638 K. Easy bubble rupture led to high fluctuation frequency and low (Dmax/D0)2 at 738 K. Three turning points were found in transient temperature growth rate at 638 and 738 K. Four characteristic droplet temperatures were analyzed, including droplet temperatures at the start (T1) and end (T2) of transient heating phase, at (Dmax/D0)2 (T3) and at the end of total lifetime (T4). T2 was slightly lower and T3 was slightly higher than the boiling point of n-butanol. T4 was lower than the boiling point of n-hexadecane. Furthermore, the transient heating duration (tTH), fluctuation evaporation duration (tFE) and total lifetime (tTL) decreased with increasing ambient temperature. The reduction of tFE played an important role in the decrease of tTL. The percentages of tTH/tTL and tFE/tTL were stable with increasing ambient temperature.

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http://hdl.handle.net/10453/131502