Your browser does not allow JavaScript!
JavaScript is necessary for the proper functioning of this website. Please enable JavaScript or use a modern browser.
Repository of the University of Ljubljana
Open Science Slovenia
Open Science
DiKUL
slv
|
eng
Search
Browse
New in RUL
About RUL
In numbers
Help
Sign in
Details
Changes in boiling controlled by molar concentration-dependent diffusion of surfactants
ID
Mata, Mario R.
(
Author
),
ID
Može, Matic
(
Author
),
ID
Hadžić, Armin
(
Author
),
ID
Lee, Giseop
(
Author
),
ID
Naccarato, Blake
(
Author
),
ID
Berk, Isaac
(
Author
),
ID
Golobič, Iztok
(
Author
),
ID
Cho, H. Jeremy
(
Author
)
PDF - Presentation file,
Download
(6,41 MB)
MD5: E44C748D334321A6B9B82DCF1D40F1E1
URL - Source URL, Visit
https://www.sciencedirect.com/science/article/pii/S001793102400838X
Image galllery
Abstract
Boiling is a prevalent phase-change process that plays a vital role in facilitating efficient heat transfer from a heating surface. While this heat transfer mechanism is generally effective, a rapid increase in surface temperature can lead to hydrodynamic instabilities, resulting in a boiling crisis. Previous studies have shown that surfactants often improve boiling performance and change the boiling crisis behavior. Conventional wisdom in this field attributes that these changes in boiling behavior are tied to the critical micelle concentration (CMC) of the particular surfactant. However, our work reveals that these changes in boiling behavior are independent of the CMC for three nonionic surfactants across a wide range of molar concentrations. In addition, visual snapshots of the bubbling behavior indicate changes in bubble formation, such as bubble size and nucleation site density, influenced by the molar concentration-dependent diffusion timescale of surfactants. Hence, these findings offer compelling evidence that boiling behavior, encompassing both boiling performance and boiling crisis, is governed by the dynamic adsorption of surfactants rather than dictated by the CMC. This becomes evident when quantifying the heat transfer coefficient (HTC) and critical heat flux (CHF) using the logarithm of molar concentration, as predicted by theory. Building upon these findings, we propose insights for controlling when CHF modification occurs in specific scenarios involving any surfactants. These insights hold significant potential for optimizing heat transfer processes and leveraging surfactants in energy-related applications to maximize boiling efficiency.
Language:
English
Keywords:
pool boiling
,
critical heat flux
,
boiling crisis
,
surfactant
,
critical micelle concentration
,
dynamic adsorption
,
diffusion timescale
Work type:
Article
Typology:
1.01 - Original Scientific Article
Organization:
FS - Faculty of Mechanical Engineering
Publication status:
Published
Publication version:
Version of Record
Year:
2024
Number of pages:
21 str.
Numbering:
Vol. 233, art. 126008
PID:
20.500.12556/RUL-159997
UDC:
536
ISSN on article:
1879-2189
DOI:
10.1016/j.ijheatmasstransfer.2024.126008
COBISS.SI-ID:
203687171
Publication date in RUL:
06.08.2024
Views:
311
Downloads:
80
Metadata:
Cite this work
Plain text
BibTeX
EndNote XML
EndNote/Refer
RIS
ABNT
ACM Ref
AMA
APA
Chicago 17th Author-Date
Harvard
IEEE
ISO 690
MLA
Vancouver
:
Copy citation
Share:
Record is a part of a journal
Title:
International journal of heat and mass transfer
Shortened title:
Int. j. heat mass transfer
Publisher:
Elsevier
ISSN:
1879-2189
COBISS.SI-ID:
23007493
Licences
License:
CC BY 4.0, Creative Commons Attribution 4.0 International
Link:
http://creativecommons.org/licenses/by/4.0/
Description:
This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Secondary language
Language:
Slovenian
Keywords:
vrenje v bazenu
,
kritična gostota toplotnega toka
,
vrelna kriza
,
surfaktanti
,
kritična micelarna koncentracija
,
dinamična adsorpcija
,
časovna skala difuzije
Projects
Funder:
Other - Other funder or multiple funders
Project number:
66043-DNI5
Name:
ACS Petroleum Award
Funder:
Other - Other funder or multiple funders
Project number:
2239416
Name:
NSF CAREER Award
Funder:
ARRS - Slovenian Research Agency
Project number:
P2-0223
Name:
Prenos toplote in snovi
Similar documents
Similar works from RUL:
Similar works from other Slovenian collections:
Back