Results 31 to 40 of about 412 (167)

CFD SIMULATION OF UPWARD SUBCOOLED BOILING FLOW OF FREON R12

Acta Polytechnica CTU Proceedings, 2016
Subcooled flow boiling under forced convection occurs in many industrial applications of purpose to maximize heat removal from the heat source by the very large heat transfer coefficient. This work deals with CFD simulations of the subcooled flow boiling
Tomas Romsy, Pavel Zacha
doaj   +1 more source

Accuracy Analysis of Bubble-layer-based Model Applied on Rectangular Channel

Yuanzineng kexue jishu
Subcooled flow boiling contains complex bubble behaviors and interactions. Accurate prediction and analysis of the subcooled flow boiling are of great significance for the safe operation and economy of the nuclear reactors.
HE Wen, ZHAO Chenru, HAN Jinyu, BO Hanliang
doaj   +1 more source

CFD investigation on heat transfer improvement of subcooled flow boiling in a vertical upflow minichannel with straight and enhanced geometrical structure

e-Prime: Advances in Electrical Engineering, Electronics and Energy, 2023
This paper presents the effects of minichannel geometrical configuration on flow structures, hydrodynamics, and heat transfer behavior of the subcooled flow boiling process in a cooling system with high heat flux.
Amal Igaadi, Rachid El Amraoui, Hicham El Mghari   +2 more
doaj   +1 more source

Experimental Study of Subcooled Boiling Heat Transfer of Axial and Swirling Flows inside Mini Annular Gaps

Journal of Applied Fluid Mechanics, 2018
An experimental study of the subcooled boiling heat transfer of axial and swirling upward flows inside vertical mini annular gaps was conducted using deionized water.
S. Ahangar Zonouzi, H. Safarzadeh, H. Aminfar, M. Mohammadpourfard   +3 more
doaj  

Experimental Investigation of Sub-Cooled Flow Boiling in Metallic Microchannel [PDF]

Engineering and Technology Journal, 2019
Experiments in microchannel heat sink were carried that examine the deionized water two-phase boiling heat transfer. The heat sink consisted of a single microchannel having 300μm wide nominal dimensions and 300μm height (hydraulic diameter of 300μm). The
Suha mohammed, Ekhlas Fayyadh
doaj   +1 more source

Mathematical analysis of heat balance model for the bubble growth in the subcooled boiling flow

Case Studies in Thermal Engineering, 2021
Subcooled boiling flow is a typical phenomenon of a high efficiency of heat transfer in the nuclear reactor. Bubble characteristic sizes are important parameters for the mechanism investigation of subcooled boiling flow.
Xiaomeng Dong, Yang Yu, Zhijian Zhang, Xi Huang   +3 more
doaj   +1 more source

Heat-transfer characteristics of screw tube in one-side high heat load condition for fusion reactor divertor application

International Journal of Advanced Nuclear Reactor Design and Technology, 2021
In this study, the heat transfer characteristics of one-side heated screw tubes were analyzed using subcooled flow boiling experiments. The experiments were performed until the critical heat flux was reached, while the applied heat flux was gradually ...
Ji Hwan Lim, Su Won Lee, Hoongyo Oh, Minkyu Park, Donkoan Hwang, Moo Hwan Kim, HangJin Jo   +6 more
doaj   +1 more source

Bubble Collapse in Subcooled Boiling

Bulletin of JSME, 1972
The motion of a vapor bubble in subcooled boiling was studied experimentally using slightly subcooled water, ethanol, and carbon-tetrachloride under the atmospheric pressure. The degree of subcooling ranged usually from about 2°C to 50°C, and in a few extreme cases it was extended to below 1°C. The experimental data for the collapse stage were found to
openaire   +3 more sources

Experimental Study on Enhanced Boiling Heat Transfer on Micro-pin-fin Structures at High Degrees of Subcooling

Zhileng xuebao, 2023
In response to the power increase in electronic devices with high heat flux density, new efficient cooling technologies should be developed to ensure the safe operation of these electronic devices.
Wang Yueming, Lu Jingchao, Zhuang Dawei, Ding Guoliang   +3 more
doaj  

Investigation of Wall Boiling Closure, Momentum Closure and Population Balance Models for Refrigerant Gas–Liquid Subcooled Boiling Flow in a Vertical Pipe Using a Two-Fluid Eulerian CFD Model

Energies
The precise design of heat exchangers in automobile air conditioning systems for more sustainable electric vehicles requires an enhanced assessment of CFD mechanistic models for the subcooled boiling flow of pure eco-friendly refrigerant.
Nishit Shaparia, Ugo Pelay, Daniel Bougeard, Aurélien Levasseur, Nicolas François, Serge Russeil   +5 more
doaj   +1 more source