Results 21 to 30 of about 94,065 (213)

Boiling Synchronization in Two Parallel Minichannels—Image Analysis

Energies, 2020
In this paper, the boiling synchronization of two-phase flow patterns in two parallel minichannels of 1 mm in diameter with connected compressible volumes was analyzed. The analysis was performed using images recorded with a high-speed camera. The degree
Gabriela Rafałko, Iwona Zaborowska, Hubert Grzybowski, Romuald Mosdorf   +3 more
doaj   +1 more source

Parameter Study of Boiling Model for CFD Simulation of Multiphase-Thermal Flow in a Pipe

한국해양공학회지, 2021
The demand for eco-friendly energy is expected to increase due to the recently strengthened environmental regulations. In particular, the flow inside the pipe used in a cargo handling system (CHS) or fuel gas supply system (FGSS) of hydrogen transport ...
Soh-Myung Chung, Yong-Seok Seo, Gyu-Mok Jeon, Jae-Won Kim, Jong-Chun Park   +4 more
doaj   +1 more source

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

Characteristics of onset of boiling under downward flow condition

Nihon Kikai Gakkai ronbunshu, 2020
Understanding of the onset of boiling plays an important role in the design of boiling equipment. Therefore, many studies have been reported so far, but most of these concerned with the upward flow condition.
Takatoshi KAMEDA, Takeyuki AMI, Hisashi UMEKAWA   +2 more
doaj   +1 more source

Surface effects in flow boiling of R134a in microtubes

, 2011
This is the post-print version of the Article. The official published version can be accessed from the link below - Copyright @ 2011 ElsevierThe inner surfaces of microtubes may be influenced strongly by the process of making them due to manufacturing ...
Tassos G. Karayiannis, Mohamed M. Mahmoud, Mahmoud, MM, Karayiannis, TG, David B.R. Kenning, Kenning, DBR   +5 more
core   +1 more source

An experimental approach to heat loss measurement of horizontal two-phase flow boiling in low-pressure low-flow (LPLF) conditions

Case Studies in Thermal Engineering
A crucial parameter remarkably influencing the reliability and accuracy of vapor quality measurements in flow boiling experiments is the measurement of heat loss.
Mehdi Kabir
doaj   +1 more source

Optimization of R245fa Flow Boiling Heat Transfer Prediction inside Horizontal Smooth Tubes Based on the GRNN Neural Network

Complexity, 2018
An optimal prediction model for flow boiling heat transfer of refrigerant mixture R245fa inside horizontal smooth tubes is proposed based on the GRNN neural network.
Meiling Liang, Xiaohui Zhang, Rong Zhao, Xulin Wen, Shan Qing, Aimin Zhang   +5 more
doaj   +1 more source

X-ray Imaging-Based Void Fraction Measurement in Saturated Flow Boiling Experiments with Seawater Coolant

Quantum Beam Science, 2021
Recent studies have shown that the presence of dissolved salts in water can exhibit peculiar flow boiling and two-phase flow regimes. Two-phase flow and convective flow boiling are typically characterized with the help of void fraction measurements.
Seth Eckels, Zayed Ahmed, Molly Ross, Daniel Franken, Steven Eckels, Hitesh Bindra   +5 more
doaj   +1 more source

Flow in fuel nozzles under cavitation and flash-boiling conditions

AIP Advances, 2022
Cavitation plays a crucial role in various fuel systems and spray applications. Due to the limitation in experimentally measuring the cavitation flow in fuel nozzles, numerical simulations can be used as an alternative in exploring the underlying physics.
Huashi Xu, Tianyou Wang, Zhizhao Che
doaj   +1 more source

Modeling and Simulation Analysis on Mixing Characteristics of Two-Phase Flow Around Spacer Grid

Frontiers in Energy Research, 2022
The spacer grid has a significant impact on the thermal-hydraulic characteristics of the rod bundle channel, which directly determines the possibility of a boiling crisis.
Y. Xiao, T. C. Duan, Quan-Yao Ren, Xiao-Yu Zheng, Meiyin Zheng, Rui He   +5 more
doaj   +1 more source