CFD analysis options to determine thermal parameters of power equipment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F19%3A10243163" target="_blank" >RIV/61989100:27230/19:10243163 - isvavai.cz</a>

Výsledek na webu

<a href="https://aip.scitation.org/doi/abs/10.1063/1.5114744" target="_blank" >https://aip.scitation.org/doi/abs/10.1063/1.5114744</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.5114744" target="_blank" >10.1063/1.5114744</a>

Jazyk výsledku

angličtina

Název v původním jazyce

CFD analysis options to determine thermal parameters of power equipment

Popis výsledku v původním jazyce

The paper deals with determining thermal parameters of heat exchanger (in this case cooler) using CFD analysis in ANSYS Fluent software. The geometry of passive cooler has been designed, in which there are grooves and bulkheads to increase the heat transfer surface. Flowing medium was VG 46 oil, i.e. it is the oil cooler. The influence of various computational meshes and the influence of the ventilator velocity on the temperature gradient between the inlet and the outlet and other parameters were evaluated. The basic calculations for the heat exchanger (heaters, coolers,...) designing includes the determination of the heat transfer coefficient through the wall. This paper deals with the definition and application of a mathematical model including the heat transfer (conduction and convection) at the heat exchanger. Convection and conduction is the transfer of thermal energy from one fluid separated by a solid wall from a second fluid. Heat transfer between a solid surface and a liquid (gaseous) environment is a complicated process, in which occurs a fluid movement. We divide forced convection and free convection. In this case it is forced convection, i.e. the movement of the fluid is externally induced by a pump or ventilator. In CFD analysis there are important parameters and conditions of all environments such as temperatures of both liquids, flow rates, wall temperatures, thermal conductivity coefficient, wall thickness and wall area. Using CFD analysis it is possible to determine the heat transfer coefficients on the air side and other parameters such as the Nusselt number. (C) 2019 Author(s).

Název v anglickém jazyce

CFD analysis options to determine thermal parameters of power equipment

Popis výsledku anglicky

The paper deals with determining thermal parameters of heat exchanger (in this case cooler) using CFD analysis in ANSYS Fluent software. The geometry of passive cooler has been designed, in which there are grooves and bulkheads to increase the heat transfer surface. Flowing medium was VG 46 oil, i.e. it is the oil cooler. The influence of various computational meshes and the influence of the ventilator velocity on the temperature gradient between the inlet and the outlet and other parameters were evaluated. The basic calculations for the heat exchanger (heaters, coolers,...) designing includes the determination of the heat transfer coefficient through the wall. This paper deals with the definition and application of a mathematical model including the heat transfer (conduction and convection) at the heat exchanger. Convection and conduction is the transfer of thermal energy from one fluid separated by a solid wall from a second fluid. Heat transfer between a solid surface and a liquid (gaseous) environment is a complicated process, in which occurs a fluid movement. We divide forced convection and free convection. In this case it is forced convection, i.e. the movement of the fluid is externally induced by a pump or ventilator. In CFD analysis there are important parameters and conditions of all environments such as temperatures of both liquids, flow rates, wall temperatures, thermal conductivity coefficient, wall thickness and wall area. Using CFD analysis it is possible to determine the heat transfer coefficients on the air side and other parameters such as the Nusselt number. (C) 2019 Author(s).

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20301 - Mechanical engineering

Projekt

<a href="/cs/project/EF16_019%2F0000867" target="_blank" >EF16_019/0000867: Centrum výzkumu pokročilých mechatronických systémů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

AIP Conference Proceedings. Volume 2118

ISBN

978-0-7354-1858-5

ISSN

0094-243X

e-ISSN

1551-7616

Počet stran výsledku

4

Strana od-do

1-4

Název nakladatele

American Institute of Physics

Místo vydání

Melville

Místo konání akce

Liptovský Mikuláš

Datum konání akce

19. 6. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—