Journal article
Frequency Distribution in Domestic Microwave Ovens and Its Influence on Heating Pattern
Journal of food science, Vol.82(2), pp.429-436
02/2017
Handle:
https://hdl.handle.net/2376/102807
PMID: 27992653
Abstract
In this study, snapshots of operating frequency profiles of domestic microwave ovens were collected to reveal the extent of microwave frequency variations under different operation conditions. A computer simulation model was developed based on the finite difference time domain method to analyze the influence of the shifting frequency on heating patterns of foods in a microwave oven. The results showed that the operating frequencies of empty and loaded domestic microwave ovens varied widely even among ovens of the same model purchased on the same date. Each microwave oven had its unique characteristic operating frequencies, which were also affected by the location and shape of the load. The simulated heating patterns of a gellan gel model food when heated on a rotary plate agreed well with the experimental results, which supported the reliability of the developed simulation model. Simulation indicated that the heating patterns of a stationary model food load changed with the varying operating frequency. However, the heating pattern of a rotary model food load was not sensitive to microwave frequencies due to the severe edge heating overshadowing the effects of the frequency variations.
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Details
- Title
- Frequency Distribution in Domestic Microwave Ovens and Its Influence on Heating Pattern
- Creators
- Donglei Luan - Dept. of Biological Systems Engineering, Washington State Univ., Pullman, WA, 99164-6120, U.S.AYifen Wang - Dept. of Biosystems Engineering, Auburn Univ., Auburn, AL, 36849, U.S.AJuming Tang - Dept. of Biological Systems Engineering, Washington State Univ., Pullman, WA, 99164-6120, U.S.ADeepali Jain - Dept. of Biological Systems Engineering, Washington State Univ., Pullman, WA, 99164-6120, U.S.A
- Publication Details
- Journal of food science, Vol.82(2), pp.429-436
- Academic Unit
- Biological Systems Engineering, Department of
- Publisher
- United States
- Identifiers
- 99900546519401842
- Language
- English
- Resource Type
- Journal article