Results 11 to 20 of about 3,522 (209)

Modelling refrigerant distribution in minichannel evaporators [PDF]

, 2010
Denne afhandling omhandler numerisk modellering af strømningsfordelinger i en minikanalfordamper til luftkonditionering. Det undersøges, hvorledes en ujævn fordeling af luftstrømningen og en ujævn fordeling af væske og damp i indløbsmanifolden påvirker kølemiddelfordelingen i de parallelle kanaler.
Brix, Wiebke
core   +2 more sources

The heat transfer and instabilities results during the onset of flow boiling in minichannels [PDF]

E3S Web of Conferences, 2019
The paper discusses the results of flow boiling heat transfer in minichannels obtained on the basis of time-dependent experiments. The main interest of the work was to investigate the occurrence of the accompanying instabilities during the boiling ...
Maciejewska Beata, Piasecka Magdalena, Piasecki Artur   +2 more
doaj   +1 more source

Regression Model of Dynamic Pulse Instabilities during Condensation of Zeotropic and Azeotropic Refrigerant Mixtures R404A, R448A and R507A in Minichannels

Energies, 2022
This paper presents experimental research and mathematical modeling data concerning the impact of unit dynamic instabilities on the phase-transition condensation processes of the zeotropic mixtures R404A and R448A and azeotropic R507A refrigerants in ...
Waldemar Kuczyński, Marcin Kruzel, Katarzyna Chliszcz   +2 more
doaj   +1 more source

Numerical calculations of heat transfer during FC-72 flow in minichannels performed with ANSYS software [PDF]

EPJ Web of Conferences, 2022
The main aim of the paper was to apply numerical calculations in ANSYS software to solve problems related to steady-state convective heat transfer during FC-72 flow in a minichannel heat sink. A mathematical model of fluid flow in a minichannel heat sink
Kuta Kacper, Piasecka Magdalena, Blasiak Slawomir   +2 more
doaj   +1 more source

Performance characterization of a novel PV/T panel with nanofluids under the climatic conditions of Muscat, Oman

International Journal of Renewable Energy Development, 2023
The study presents an experimental analysis of a novel mini channels-based Photovoltaic/Thermal (PV/T) panel with nanofluid flow. The design consists of a PV plate attached to an aluminum substrate absorber plate having minichannels grooved on it to act ...
Afzal Husain, Nabeel Z. Al-Rawahi, Nasser A. Al-Azri, Mohammed Al-Naabi, Musaab El-Tahir   +4 more
doaj   +1 more source

Further Study and Development of Correlations for Heat Transfer during Subcooled Boiling in Plain Channels

Fluids, 2023
The author’s published correlations for subcooled boiling in channels are further studied and developed in this work. The areas explored include choice of equivalent diameters for annuli and partially heated channels, effects of flow direction, micro ...
Mirza M. Shah
doaj   +1 more source

Development of a two-dimensional mathematical model of flow boiling heat transfer in micro- and minichannels [PDF]

EPJ Web of Conferences, 2022
The paper concerns flow boiling heat transfer in micro- and minichannels. In the mathematical model, the steady state heat transfer process in a single asymmetrically heated minichannel was considered.
Hożejowska Sylwia, Piasecka Magdalena, Piasecki Artur   +2 more
doaj   +1 more source

Multimodal Locomotion of Magnetic Droplet Robots Using Orthogonal Pairs of Coils

Advanced Intelligent Systems, Volume 5, Issue 9, September 2023., 2023
Using global magnetic fields, three main magnetic field configurations with their respective locomotion mechanisms for magnetic droplet robots are demonstrated: uniform rotating fields for droplet fission–fusion motions and rolling locomotion; magnetic trapping point‐based locomotion for single‐ and collective‐droplet manipulation; and field‐free ...
Armando Ramos-Sebastian, Ja Sung Lee, Sung Hoon Kim   +2 more
wiley   +1 more source

Simulative Investigation of Optimal Multiparameterized Cooling Plate Topologies for Different Battery System Configurations

Energy Technology, Volume 11, Issue 9, September 2023., 2023
Herein, cooling plate topology optimization for electric vehicles is performed based on different lithium‐ion battery geometries. Fast charging requirements are used to evaluate the cooling circuit from the cell to module to system level. The cooling model's modular structure enables to evaluate cooling plates for varying applications and battery ...
Alexander Epp, Sunny Rai, Finn van Ginneken, Andreas Varchmin, Jürgen Köhler, Dirk Uwe Sauer   +5 more
wiley   +1 more source

Predicting the accuracy of nanofluid heat transfer coefficient's computational fluid dynamics simulations using neural networks

Heat Transfer, Volume 52, Issue 4, Page 3389-3410, June 2023., 2023
Abstract This research presents a neural network algorithm to identify the best modeling and simulation methods and assumptions for the most widespread nanofluid combinations. The neural network algorithm is trained using data from earlier nanofluid experiments. A multilayer perceptron with one hidden layer was employed in the investigation. The neural
Ekene Jude Onyiriuka
wiley   +1 more source