Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "Joule heating" wg kryterium: Temat


Wyświetlanie 1-9 z 9
Tytuł:
3D simulations of diamond microfluidic devices
Autorzy:
Witkowski, D.
Obidowski, D.
Łysko, J.
Karczemska, A.
Powiązania:
https://bibliotekanauki.pl/articles/285490.pdf
Data publikacji:
2009
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
przyrządy mikrofluidyczne
Coventor
ciepło Joule'a
diamond microfluidic devices
Joule heating
Opis:
The aim of this study was to optimize the diamond microfluidic device with four microchannels. The temperature distributions in electrophoretic microchips of different geometries and different materials have been analyzed by the Coventor software. Diamond microfluidic devices are very advantageous over glass or polymer microfluidic devices; they dissipate Joule heat much more efficiently because of the highest thermal conductivity coefficient of diamond.
Źródło:
Engineering of Biomaterials; 2009, 12, 86; 14-16
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Research on Distribution and Morphology of Primary Si Under the Effect of Direct Current
Autorzy:
Li, Jiayan
Njuguna, Benson Kihono
Ni, Ping
Wang, Liang
Tan, Yi
Powiązania:
https://bibliotekanauki.pl/articles/2049663.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
silicon source
direct current
Joule heating
Si morphology
Fe impurity
Opis:
A source of pure silicon was added into an alloy refining system during a refining process with the application of a direct electric current. The effect of the temperature difference between the graphite electrodes and the alloy was decreased. The temperature increase value (ΔT) of the Al-28.51wt.%Si alloy sample caused by Joule heating was calculated by weighing the mass of primary silicon. When the current density was 5.0×105A/m2, the overall temperature increase in the alloy was about 90°C regardless of the alloy composition. Adequate silicon atoms recorded the footprint of the electric current in the alloy melt. The flow convection generated by the electric current in the melt during the solidification process resulted in the refinement of primary silicon. The Fe impurity content in alloy refining without the electric current density was 2.16 ppm. However, it decreased to 1.27 ppmw with the application of an electric current density of 5.0×105A/m2.
Źródło:
Archives of Metallurgy and Materials; 2021, 66, 2; 367-372
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Peristaltic flow of a third grade fluid accounting Joule heating and Magnetic field. Effects in an asymmetric channel
Autorzy:
Asha, S. K.
Deepa, C. K.
Powiązania:
https://bibliotekanauki.pl/articles/1046550.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
ADM
Joule heating
MHD third grade fluid
Peristaltic flow
asymmetric channel
Opis:
In this article, we have analysed the MHD third grade fluid flow induced by a peristaltic wave. The flow is analysed using the lubrication approximations. The reduced equations are solved by Adomian Decomposition Method (ADM) and the expressions for stream function, velocity, pressure gradient and frictional force are obtained. The effect of pertinent parameters such as Brinkmann number, magnetic field, Deborah number and phase difference are analysed and illustrated graphically. The results shown that the rate of conduction of heat enhances by supplying heat to the channel. Also it is noticed that by increasing magnetic field the Lorentz forces reduces the velocity. This study finds application in various practical devices like electric power generators, heaters and conductors.
Źródło:
World Scientific News; 2019, 137; 1-17
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nowoczesne urządzenie do iskrowego spiekania plazmowego proszków SPS HP D 25
Modern spark plasma sintering device in Metal Forming Institute
Autorzy:
Garbiec, D.
Rybak, T.
Heyduk, F.
Janczak, M.
Powiązania:
https://bibliotekanauki.pl/articles/211853.pdf
Data publikacji:
2011
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Obróbki Plastycznej
Tematy:
iskrowe spiekanie plazmowe
metalurgia proszków
ciepło Joule'a
spark plasma sintering
powder metallurgy
Joule heating
Opis:
Artykuł informuje o znajdującym się w Instytucie Obróbki Plastycznej w Poznaniu urządzeniu SPS HP D 25, do iskrowego spiekania plazmowego. Zamieszczono schemat oraz parametry techniczne zakupionego urządzenia. Omówiono technologię wytwarzania spieków oraz możliwości wykorzystania urządzenia typu SPS HP D 25. Podano przykłady materiałów wytwarzanych metodą iskrowego spiekania plazmowego na urządzeniu SPS HP D 25.
Article informs about own by Metal Forming Institute in Poznan device SPS HP D 25 for spark plasma sintering. There are devices scheme and technical parameters presented. There is sintered powders manufacturing technology discussed and abilities of SPS HD D 25 application presented. There are presented examples of materials for manufacturing by device SPS HP D 25.
Źródło:
Obróbka Plastyczna Metali; 2011, 22, 3; 221-225
0867-2628
Pojawia się w:
Obróbka Plastyczna Metali
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical simulation of the micropolar fluid flow and heat transfer in a channel with a shrinking and a stationary wall
Autorzy:
Ali, K.
Ashraf, M.
Powiązania:
https://bibliotekanauki.pl/articles/949324.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
channel flow
shrinking/stationary walls
couple stress
quasi-linearization
Joule heating
viscous dissipation
Opis:
We present the numerical study of hydromagnetic (MHD) flow and heat transfer characte- ristics of a viscous incompressible electrically conducting micropolar fluid in a channel with one wall shrinking and the other at rest in the presence of a transverse applied magnetic field. Different from the classical shooting methodology, we employ a combination of a di- rect and an iterative method (SOR with optimal relaxation parameter) for solving the sparse systems of linear algebraic equations arising from the FD discretization of the linearized self similar nonlinear ODEs. Effects of some physical parameters on the flow and heat transfer are discussed and presented through tables and graphs. The present investigation may be beneficial to the flow and thermal control of polymeric processing.
Źródło:
Journal of Theoretical and Applied Mechanics; 2014, 52, 2; 557-569
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical simulation of unsteady water-based nanofluid flow and heat transfer between two orthogonally moving porous coaxial disks
Autorzy:
Ali, K.
Farooq Iqbal, M.
Akbar, Z
Ashraf, M.
Powiązania:
https://bibliotekanauki.pl/articles/949359.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
porous disks
Al2O3 nanoparticles
viscous dissipation
wall expansion ratio
Joule Heating
Opis:
We present the numerical study of unsteady hydromagnetic (MHD) flow and heat trans- fer characteristics of a viscous incompressible electrically conducting water-based nanofluid (containing Al₂O₃ nanoparticles) between two orthogonally moving porous coaxial disks with suction. Different from the classical shooting methodology, we employ a combination of a direct and an iterative method (SOR with optimal relaxation parameter) for solving the sparse systems of linear algebraic equations arising from the FD discretization of the linearized self similar nonlinear ODEs. Effects of the governing parameters on the flow and heat transfer are discussed and presented through tables and graphs. The findings of the present investigation may be beneficial for electronic industry in maintaining the electronic components under effective and safe operational conditions.
Źródło:
Journal of Theoretical and Applied Mechanics; 2014, 52, 4; 1033-1046
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Heat transfer in Darcy-Forchheimer flow of tangent hyperbolic fluid over an inclined plate with Joule heating
Autorzy:
Purna Chandar Rao, Darapuneni
Thiagarajan, Swaminathan
Srinivasa Kumar, Vajha
Powiązania:
https://bibliotekanauki.pl/articles/2141500.pdf
Data publikacji:
2021
Wydawca:
Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:
inclined plate
tangent hyperbolic fluid
Darcy-Forchheimer
Joule heating
shooting strategy
Eckert number
ciepło Joule'a
liczba Eckerta
Opis:
Tangent hyperbolic fluid is one of the non-Newtonian fluids in which the constitutive equation is valid for low and high shear rates and used mostly in laboratory experiments and industries. The Darcy-Forchheimer flow model is substantial in the fields where the high flow rate effect is the common phenomenon, for instance, in petroleum engineering. With these things in mind, in this article, we analysed the mixed convective dissipative Darcy-Forchheimer flow of tangent hyperbolic fluid by an inclined plate with Joule heating. Flow administering equations were altered as nonlinear ODEs and then resolved using shooting strategy. Pertinent outcomes are explained through graphs. It is discovered that fluid velocity minifies with the rise in the power law index parameter and Forchheimer number. It is detected that the thermal buoyancy parameter minimizes fluid temperature, and the magnetic field parameter ameliorates the same. What’s more, we noticed that Forchheimer number minimizes the skin friction coefficient, and the heat transfer rate is minified with the larger Eckert number. Furthermore, we have verified our results with former results for the Nusselt number and noticed a satisfactory agreement.
Źródło:
Journal of Applied Mathematics and Computational Mechanics; 2021, 20, 3; 31-40
2299-9965
Pojawia się w:
Journal of Applied Mathematics and Computational Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of convective heat and mass conditions in magnetohydrodynamic boundary layer flow with joule heating and thermal radiation
Autorzy:
Sharma, R. P.
Tinker, Seema
Gireesha, B. J.
Nagaraja, B.
Powiązania:
https://bibliotekanauki.pl/articles/1839793.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
konwekcja
magnetohydrodynamika
reakcja chemiczna
promieniowanie cieplne
convection
MHD
Joule heating
chemical reaction
thermal radiation
Opis:
A free convection viscous MHD flow over a semi-infinite vertical sheet with convective heat and mass conditions has been considered. The effects of thermal radiation, chemical reaction and Joule heating on flow are also accounted. The governing nonlinear partial differential equations have been transformed into a set of highly non-linear coupled ordinary differential equations (ODEs) using appropriate similarity transformations. Numerical solutions of transformed equations are obtained by employing the 5th order Runge-Kutta Fehlberg technique followed by the shooting technique. The influences of different flow parameters on the momentum, energy and mass field are discussed and shown graphically. Results reveal that temperature and concentration profiles enhance due to increasing heat and mass Biot number parameters.
Źródło:
International Journal of Applied Mechanics and Engineering; 2020, 25, 3; 103-116
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Scrutinization of Joule heating and viscous dissipation on MHD flow and melting heat transfer over a stretching sheet
Autorzy:
Kumar, K. G.
Gireesha, B. J.
Manjunatha, S.
Powiązania:
https://bibliotekanauki.pl/articles/264626.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
metoda numeryczna
dyssypacja lepkości
płyn mikropolarny
Joule heating
viscous dissipation
stretching sheet
micro polar dusty fluid
numerical method
Opis:
The present paper deals with an analysis of the combined effect of Joule heating and viscous dissipation on an MHD boundary layer flow and melting heat transfer of a micro polar fluid over a stretching surface. Governing equations of the problem are transformed into a set of coupled nonlinear ordinary differential equations by applying proper transformations and then they are solved numerically using the RKF-45 method. The method is verified by a comparison with the established results with limiting solution. The influence of the various interesting parameters on the flow and heat transfer is analyzed in detail through plotted graphs.
Źródło:
International Journal of Applied Mechanics and Engineering; 2018, 23, 2; 429-443
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-9 z 9

    Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies