Thermo-hydraulic characterization of a self-pumping corrugated wall heat exchanger

Autor: Frederic Topin, Prashant Kumar, Kevin Schmidmayer, Marc Miscevic, Pascal Lavieille
Přispěvatelé: Institut universitaire des systèmes thermiques industriels (IUSTI), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Groupe de Recherche Energétique, Plasmas et Hors Equilibre (LAPLACE-GREPHE), LAboratoire PLasma et Conversion d'Energie (LAPLACE), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT), Fonds Unique Interministériel (Grant FUI18-CANOPEE), Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse III - Paul Sabatier (UT3)
Rok vydání: 2017
Předmět:
Dynamic deformation
Engineering
020209 energy
Heat transfer enhancement
Mechanical engineering
02 engineering and technology
Deformation (meteorology)
Heat sink
Industrial and Manufacturing Engineering
Pressure gain
Wall morphing
Heat exchanger
0202 electrical engineering
electronic engineering
information engineering
[PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph]
Electrical and Electronic Engineering
Civil and Structural Engineering
Dynamic scraped surface heat exchanger
business.industry
Mechanical Engineering
Plate heat exchanger
Building and Construction
021001 nanoscience & nanotechnology
Critical value
[INFO.INFO-MO]Computer Science [cs]/Modeling and Simulation
Pollution
General Energy
Heat transfer
Heat spreader
[SPI.MECA.THER]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Thermics [physics.class-ph]
Mobile heat exchanger
0210 nano-technology
business
Zdroj: Energy
Energy, 2017, 128, pp.713-728. ⟨10.1016/j.energy.2017.04.048⟩
Energy, Elsevier, 2017, 128, pp.713-728. ⟨10.1016/j.energy.2017.04.048⟩
ISSN: 0360-5442
DOI: 10.1016/j.energy.2017.04.048
Popis: International audience; Compactness, efficiency and thermal control of the heat exchanger are of critical significance for many electronic industry applications. In this view, a new concept of heat exchanger at millimeter scale is proposed and numerically studied. It consists in dynamically deforming at least one of its walls by a progressive wave in order to create an active corrugated channel. Systematic studies were performed in single-phase flow on the different deformation parameters that allow obtaining the thermo-hydraulic characteristics of the system. It has been observed the dynamic wall deformation induces a significant pumping effect. Intensification of heat transfer remains very important even for highly degraded waveforms although the pumping efficiency is reduced in this case. The mechanical power applied on the upper wall to deform it dynamically is linked to the wave shape, amplitude, frequency and outlet-inlet pressure difference. The overall performance of the proposed system has been evaluated and compared to existing static channels. The performance of the proposed heat exchanger evolved in two steps for a given wall deformation. It declines slightly up to a critical value of mechanical power applied on the wall. When this critical value is exceeded, it deteriorates significantly , reaching the performance of existing conventional systems.
Databáze: OpenAIRE
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