图书馆订阅: Guest
Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集
国际清洁环境能源期刊
SJR: 0.195 SNIP: 0.435 CiteScore™: 0.74

ISSN 打印: 2150-3621
ISSN 在线: 2150-363X

国际清洁环境能源期刊

Formerly known as Clean Air: International Journal on Energy for a Clean Environment

DOI: 10.1615/InterJEnerCleanEnv.2015015667
pages 171-182

MEASUREMENT OF THE DYNAMIC CONTACT ANGLE ON A SURFACE COATED WITH NANOPARTICLES FOR IMPROVING THE BOILING CRISIS MODEL

Yury A. Kuzma-Kichta
Moscow Power Engineering Institute Moscow, Russia
Aleksandr Lavrikov
Skolkovo Institute of Science and Technology, Russia
Mikhail Shustov
National Research University Moscow Power Engineering Institute , Russia
A. Ustinov
Skolkovo Institute of Science and Technology, Russia
J. Bialek
Skolkovo Institute of Science and Technology, Russia

ABSTRACT

According to some models, the critical heat flux (CHF) depends much on the wettability of the heating surface. A thin layer of nanoparticles deposited on the surface can change the wettability and the CHF too. In this case, it is possible to predict only the direction of the change in the static contact angle, but it is too difficult to calculate the exact value of the static angle. The determination of dynamic contact angles is even more complicated. The process of dry spot formation and rewetting during the boiling crisis is very rapid. The values of advancing and receding contact angles are needed for improving the CHF model. The improved values of the dynamic contact angles can be used in developing a boiling crisis model, since the processes of dry spot growth and rewetting proceed very rapidly.
The present investigation is aimed at studying the contact angle on surfaces with artificial layers of nanoparticles. Experiments were carried out to measure both the static and dynamic contact angles. The second part of the paper is devoted to the evaluation of the durability of nanoparticles coating in boiling and rewetting of dry spots.


Articles with similar content:

A NEW APPROACH TO INVESTIGATE CONTACT ANGLE HYSTERESIS
International Heat Transfer Conference 16, Vol.19, 2018, issue
Qiao Liu, Abbasali Abouei Mehrizi, Hao Wang
A LATTICE MONTE CARLO ANALYSIS ON CHEMICAL REACTION WITH MOVING BOUNDARY
Computational Thermal Sciences: An International Journal, Vol.4, 2012, issue 2
Irina V. Belova, Thomas Fiedler, Graeme Murch, Andreas Ochsner
A MECHANICAL MODEL FOR PREDICTION OF BOILING INCEPTION CONDITION
International Heat Transfer Conference 9, Vol.2, 1990, issue
Kozo Futagami, Koichi Mizukami, Fumiaki Abe
CHARACTERISTICS OF A SOLITARY VAPOR BUBBLE UNDER SUBCOOLED WATER BOILING
International Heat Transfer Conference 16, Vol.4, 2018, issue
Yuri Albertovich Zeigarnik, Konstantin A. Khodakov, Nikolay Viktorovich Vasiliev
Boiling on an Isolated Nucleation Site Close to CHF Conditions
International Heat Transfer Conference 15, Vol.38, 2014, issue
Wladimir Bergez, Catherine Colin, Olivier Kannengieser