Experimental Study and CFD Modeling of Fluid Flow and Heat Transfer Characteristics in a Mini-Channel Heat Sink Using Simcenter STAR-CCM+ Software

Piasecka, Magdalena; Piasecki, Artur; Dadas, Norbert

doi:10.3390/en15020536

Cited by 21 publications

(19 citation statements)

References 30 publications

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“…In particular, the methodology used is GCI, developed by Roache [25]. Using this methodology, the results of the heat transfer calculation related to the minichannel heat sink performed in the Simcenter Star-CCM+ software were described in [20]. Furthermore, when comparing the results with those of other authors who applied rectangular minichannels in heat exchanger construction, it can be noticed that the results are similar in the "hot" minichannel as in works [14,15,[26][27][28][29][30][31][32].…”

Section: Cfd Calculation Resultsmentioning

confidence: 99%

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Conception of minichannel cooling for a PVT heat exchanger

Strąk,

Piasecka

2022

EPJ Web Conf.

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In the paper, a new construction of a compact plate heat exchanger dedicated to PVT cooling was numerically tested. The efficiency of photovoltaic panels decreases as their temperature increases, but cooling improves efficiency. A model counter-current heat exchanger with rectangular minichannels was presented. A heated wall of the heat exchanger was a photovoltaic cell. There were laminar flows of Fluorinert FC-72 and distilled water in the minichannels. FC-72 was heated by the photovoltaic panel. The CAD model of a minichannel heat exchanger was proposed. CFD calculations were performed using Simcenter STAR-CCM+ software. The fluid temperature and velocity profile in the minichannels were determined to finally obtain the values of the heat transfer coefficient. The main parameters taken into consideration in the computations concerned: meshes, physics, and geometry. Finally, local heat transfer coefficients were determined.

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Section: Cfd Calculation Resultsmentioning

confidence: 99%

“…Furthermore, the commercial ADINA program was applied in numerical calculations to perform advanced mathematical procedures using experimental data [18,19]. Similarly, the results of the CFD and heat transfer calculations for the test section with a group of minichannels performed in Simcenter STAR-CCM + software were presented in [20].…”

Section: Introductionmentioning

confidence: 99%

Conception of minichannel cooling for a PVT heat exchanger

Strąk,

Piasecka

2022

EPJ Web Conf.

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“…To define the accuracy discretization error, the model was meshed with three grids with different sizes to obtain a range of 3 to 15 million cells. The results were widely discussed in [10].…”

Section: Epj Web Ofmentioning

confidence: 96%

Simcenter STAR-CCM+ software for CFD and heat transfer calculations in minichannels

Dadas,

Piasecki,

Piasecka

2022

EPJ Web Conf.

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The paper focuses on CFD modelling and numerical simulation of heat transfer during fluid flow in minichannels. The data from the experiment were adopted into Simcenter Star-CCM+ software. The test section comprised seven or twenty-one parallel minichannels of rectangular cross sections. Each minichannel was 1 mm height. During the experimental series, the temperature measurements of the heated wall were recorded due to an infrared camera. Measurement data was compared with the results obtained from numerical calculations. Fluorinert FC-72 was used as a working fluid in experiments and simulations. An increase in the values of the heat transfer coefficient was observed for the test section with 21 minichannels compared to that with seven minichannels. Numerical simulations helped to identify how the change in the number of minichannels affects the intensification of heat transfer during flow without the timeand cost-consuming experimental tests

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“…The computations with the aid of the Simcenter STAR-CCM+ programme were conducted on a PC with the following main specifications: Intel Core i9-10920X CPU processor (24 cores), 256 GB of RAM, and 3.50 GHz of clock speed, LGA2066 19.25 MB, similar to that indicated in [19]. Numerical calculations took about 6-10 h of CPU time.…”

Section: Cad Model Of the Pv Panelmentioning

confidence: 99%

An Experimental Investigation and Numerical Simulation of Photovoltaic Cells with Enhanced Surfaces Using the Simcenter STAR-CCM+ Software

Piasecka,

Piasecki,

Dadas

2023

Energies

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This article proposes a passive cooling system for photovoltaic (PV) panels to achieve a reduction in their temperature. It is known that the cooling of PV panels allows for an increase in the efficiency of photovoltaic conversion. Furthermore, reducing the high temperature of the surfaces of PV panels is also desirable to ensure their long-lasting operation and high efficiency. Photovoltaic panels were modified by adding copper sheets to the bottom side of the panels. Two types of modification of the outer surface of the sheet were investigated experimentally, which differed in surface roughness. One was characterised by the nominal roughness of the copper sheet according to its manufacturer, while the other was enhanced by a system of pins. Numerical simulations, performed using the Simcenter STAR-CCM+ software, version 2020.2.1 Build 15.04.010, helped to describe the geometry of the pins and their role in the resulting reduction in the temperature of the PV panel surface. As a result, modifying a typical PV panel by adding a copper sheet with pins helps to achieve a higher decrease in the temperature of the PV panel. The addition of a copper sheet with a smooth surface to the bare PV panel improved the operating conditions by lowering its surface temperature by approximately 6.5 K but using an enhanced surface with the highest number of pins distributed uniformly on the copper sheet surface resulted in the highest temperature drop up to 12 K. The highest number of pins distributed uniformly on the copper sheet surface resulted in the highest temperature drop in its bottom surface, that is, on average by more than 12 K compared to the surface temperature of the bare PV panel surface. The validation of the numerical calculations was performed on data from the experiments. An analysis of the quality of the numerical mesh was also performed using a method based on the grid convergence index.

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Experimental Study and CFD Modeling of Fluid Flow and Heat Transfer Characteristics in a Mini-Channel Heat Sink Using Simcenter STAR-CCM+ Software

Cited by 21 publications

References 30 publications

Conception of minichannel cooling for a PVT heat exchanger

Conception of minichannel cooling for a PVT heat exchanger

Simcenter STAR-CCM+ software for CFD and heat transfer calculations in minichannels

An Experimental Investigation and Numerical Simulation of Photovoltaic Cells with Enhanced Surfaces Using the Simcenter STAR-CCM+ Software

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