Heat transfer coefficient determination during FC-72 flow in a minichannel heat sink using the Trefftz functions and ADINA software

M Piasecka, B Maciejewska, P Łabędzki - Energies, 2020 - mdpi.com
This work focuses on subcooled boiling heat transfer during flow in a minichannel heat sink
with three or five minichannels of 1 mm depth. The heated element for FC-72 flowing along …

Boiling dynamics in parallel minichannel system with different inlet solutions

I Zaborowska, H Grzybowski, G Rafałko… - International Journal of …, 2021 - Elsevier
In the paper inlet pressure fluctuations in non-stationary boiling in two parallel minichannels
with an inner diameter of 1 mm were considered. The open-loop system with two cases of …

An image analysis method of liquid phase distribution during boiling in parallel minichannels

G Rafałko, H Grzybowski, R Mosdorf - International Communications in …, 2022 - Elsevier
Due to miniaturisation and fast development of heat exchangers, flow maldistribution studies
are of common interest. However, there is still a lack of non-invasive methods dedicated for …

Image analysis of flow maldistribution during boiling in parallel minichannels

G Rafałko, H Grzybowski, P Dzienis… - Chemical …, 2021 - Wiley Online Library
The boiling flow of distilled water with reverse flow in three parallel, rectangular, horizontal
minichannels was investigated. The analyzed data was in the form of a set of video frames …

Recurrence analysis of phase distribution changes during boiling flow in parallel minichannels

G Rafałko, H Grzybowski, P Dzienis… - The European Physical …, 2023 - Springer
In the paper, flow boiling in three parallel minichannels with a common inlet and outlet area
was examined. The synchronization between flow distributions in minichannels was …

Complexity of two-phase flow dynamics using the recurrence and high speed video analysis

R Mosdorf, G Rafałko, I Zaborowska… - Archives of …, 2024 - journals.pan.pl
During flow boiling in a system with small (mini/micro) channels, several instabilities may
occur at the same time, which overlap each other-such a phenomenon complicates the …

Application of RQA and SOM for identification of two-phase flow patterns during boiling in horizontal minichannel

H Grzybowski, I Zaborowska… - E3S Web of …, 2021 - e3s-conferences.org
In the paper, numerical methods of data analysis recurrence quantification analysis (RQA)
and self-organizing map (SOM) have been used to analyse pressure drop oscillations …