Simulations of heating efficiency in domestic microwave ovens

• Autorzy: Sołtysiak M. , Celuch M. , Erle U.

Warianty tytułu

PL

Symulacje efektywności grzania w domowych kuchenkach mikrofalowych

• Języki publikacji: EN

Abstrakty

EN

Microwave heating of cylindrical beef loads inside the cavity of I a Whirlpool-Max microwave oven is modelled using a coupled electromagnetic and thermal scenario. An extended multiphysics FDTD algorithm is applied. Changes of dielectric properties of beef as a function of temperature are taken into account. Two different thermal models including and neglecting thawing point effects in the thermodynamic simulation are described. The temperature patterns at the outer top surface of the beef load at various time instants during heating are presented, for beef cylinders of two diameters.

PL

Artykuł zawiera opis modelowania procesu grzania mikrofalowego z wykorzystaniem sprzężonych symulacji elektromagnetycznych i cieplnych rozszerzonym algorytmem FDTD. Jako przykład testowy, rozważane jest mięso wołowe uformowane na kształt cylindra i umieszczone w kuchence mikrofalowej Whirlpool-Max. Symulacje uwzględniają zmiany własności dielektrycznych grzanego mięsa w funkcji temperatury. Opisane są dwa różne modele: uwzględniający i pomijający efekty cieplne w okolicach punktu zmiany fazy. Wynikiem symulacji są rozkłady temperatury na zewnętrznej górnej powierzchni grzanego produktu w funkcji czasu grzania, dla dwóch średnic produktu.

Słowa kluczowe

EN

microwave heating; FDTD algorithm; simulations

PL

grzanie mikrofalowe; algorytm FDTD; symulacje

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Elektronika : konstrukcje, technologie, zastosowania
• Rocznik: 2009
• Tom: Vol. 50, nr 4
• Strony: 37--42
• Opis fizyczny: Bibliogr. 18 poz., il.

Twórcy

autor

Sołtysiak M.

autor

Celuch M.

autor

Erle U.

• Politechnika Warszawska, Instytut Radioelektroniki

Bibliografia

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• [3] Taflove A., Hagness S.: Computational Electrodynamics - The Finite-Difference Time-Domain Method. 3rd Edition, Artech House, Boston-London, 2005.
• [4] Risman P. O., Celuch-Marcysiak M.: Electromagnetic modelling for microwave heating applications. 13th International Conference on Microwaves, Radar and Wireless Communication MIKON-2000, vol. 3, Wroclaw, May 22-24, 2000, pp. 167-182.
• [5] Gwarek W., Celuch-Marcysiak M.: A Review of Microwave Power Applications in Industry and Research. Invited paper, 14th International Conference on Microwaves, Radar and Wireless Communications MIKON - 2004, pp. 843-848.
• [6] Kopyt P., Celuch M.: Coupled electromagnetic-thermodynamic simulations of microwave heating problems using the FDTD algorithm. J. Microwave Power and Electromagnetic Energy, 41(4), 2007, pp. 18-29.
• [7] Celuch-Marcysiak M., Gwarek W. K., Sypniewski M.: A novel FDTD system for microwave heating and thawing analysis with automatic time-variation of enthalpy-dependent media parameters. 8th International Conference on Microwave and High Frequency Heating, Bayreuth, Sept. 2001, pp. 108-110; full text in Advances in Microwave and Radio-Frequency Processing, Springer Verlag, 2006, pp. 199-209.
• [8] Kopyt P., Celuch-Marcysiak M., Gwarek W. K.: Microwave processing of temperature-dependent and rotating objects: development and experimental verification of FDTD algorithms. Microwave and Radio Frequency Applications: Proc. of the 3rd World Congress on Microwave and Radio Frequency Applications, The American Ceramic Society, 2003, pp. 7-16.
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• [14] Celuch M., Gwarek W. K.: Properties of the FDTD method relevant to the analysis of microwave power problems. J. Microwave Power and Electromagnetic Energy, 41(4), 2007, pp. 62-80.
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