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MATHEMATICAL MODELING OF MICROWAVE HEATING BY THE METHOD OF DIMENSIONAL ANALYSIS
Author(s) -
KOMOLPRASERT VANEE,
OFOLI ROBERT Y.
Publication year - 1989
Publication title -
journal of food processing and preservation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.511
H-Index - 48
eISSN - 1745-4549
pISSN - 0145-8892
DOI - 10.1111/j.1745-4549.1989.tb00093.x
Subject(s) - microwave , dimensionless quantity , microwave heating , thermal conductivity , materials science , microwave power , microwave cavity , dielectric , thermal , correlation coefficient , analytical chemistry (journal) , mechanics , thermodynamics , mathematics , chemistry , physics , statistics , optoelectronics , composite material , telecommunications , chromatography , computer science
Dimensional analysis was used to develop a predictive mathematical model for microwave heating of water. Water properties (density, specific heat, thermal conductivity and dielectric loss factor), power output and frequency of microwave, and geometric parameters were included in the dimensionless terms. Two household microwave cavities (donated by Tappan and Litton) were used. Time‐temperature data were collected using a Luxtron fluoroptic temperature sensor (model 750) equipped with fiber optic probes. the predictive model, which was based on data taken in a Litton microwave cavity, was used to predict heating time of water in a Tappan microwave cavity. the results showed good agreement between the measured and the predicted time duration, with a high correlation coefficient (R 2 =. 99).