Heat and mass transfer modeling of microwave infrared cooking of zucchini based on Lambert law

2021-10-01
In this study, the change in the temperature and moisture content of zucchini cooked in microwave and infrared combination oven were modeled by finite element method. The exact form of Lambert law was used to predict the microwave power. Experimental temperature data at different positions of zucchini and moisture content data were used to verify the models obtained for different microwave (10, 30, and 50%) and infrared power (10, 40, and 70%) combinations for 600 s. Measured data and the model were in good agreement with an average root mean square error of 5.66 degrees C for temperature and 2.52% for moisture content. The effects of microwave and infrared powers on rate of heat and mass transfer of zucchini were analyzed. Practical Applications Microwave-infrared combination heating offers considerably faster heating with main disadvantage of hot and cold spots. By the help of mathematical explanation of systems, these problems can be eliminated. In this research, coupled three-dimensional finite element model was developed to simulate heat and mass transfer of zucchini cooked in microwave and infrared combination oven. The microwave power was predicted by the Lambert law. In addition, this study presented the effect of microwave and infrared power on rate of heat and mass transfer of zucchini and the variation of temperature with respect to position in the zucchini sample.
JOURNAL OF FOOD PROCESS ENGINEERING

Suggestions

Transport and related properties of breads baked using various heating modes
Şümnü, Servet Gülüm; Şahin, Serpil; Rakesh, Vineet (Elsevier BV, 2007-02-01)
Physical properties of breads during baking were measured using three different heating modes of microwave plus infrared (MIR), microwave plus jet impingement (MJET) and jet impingement (JET) in two different commercially available microwave combination ovens. Breads baked in JET oven were significantly different from the breads baked in other ovens with respect to their specific volume and moisture content. Transient values of dielectric constant, dielectric loss factor, specific bulk volume, porosity, the...
Infrared-assisted microwave drying in the production of bread crumbs
Tireki, Suzan; Şümnü, Servet Gülüm; Department of Food Engineering (2005)
This study is aimed to investigate the possibility of using halogen lamp-microwave combination oven for production of bread crumbs and to determine the drying conditions in this oven to produce bread crumbs with the highest quality. Bread crumb dough was dried from about 40.9% to 8% moisture content by conventional oven, microwave, infrared and infrared-assisted microwave drying. In the experiments 30%, 50% and 70% halogen lamp and/or microwave powers were used. As a control, conventional oven drying at 75°...
Usage of enzymes in a novel baking process
Keskin, SO; Şümnü, Servet Gülüm; Şahin, Serpil (Wiley, 2004-04-01)
In this study, the effects of different enzymes (a-amylase, xylanase, lipase, protease) on quality of breads baked in different ovens (microwave, halogen lamp-microwave combination and conventional oven) were investigated. It was also aimed to reduce the quality problems of breads baked in microwave ovens with the usage of enzymes. As a control, bread dough containing no enzyme was used. Specific volume, firmness and color of the breads were measured as quality parameters. All of the enzymes were found to b...
Heat transfer during frying of potato slices
Şahin, Serpil; Bayindirli, L (Elsevier BV, 1999-01-01)
The convective heat transfer coefficient during deep-fat-frying of potatoes was determined at different temperatures. The temperature, 0.1 cm below the top and bottom surfaces of a 0.05 x 0.05 x 0.005 m potato sample was monitored over rime. The thermal conductivity and specific heat of the sample were expressed as a function of rime, and the data were analyzed using the heat transfer equation with an explicit finite difference method. Crust formation occurred primarily at the bottom surface of the potato s...
Model Based Comparison of Drying of Asparagus (Asparagus Officinalis l.) With Traditional Method and Microwave
Baltacıoğlu, Cem; Okur, İlhami; Buzrul, Sencer (2020-06-01)
In this study, asparagus slices were dried with traditional oven and microwave oven methods. Model based approach was used to investigate the differences and similarities between two drying methods. Weibullian and linear equations were used as the primary and secondary models, respectively. Secondary model integrated into the primary model could successfully be used to describe the moisture ratio of asparagus in one-step procedure. Appropriate fits were obtained for both drying techniques, but microwave dry...
Citation Formats
N. Yazicioglu, S. G. Şümnü, and S. Şahin, “Heat and mass transfer modeling of microwave infrared cooking of zucchini based on Lambert law,” JOURNAL OF FOOD PROCESS ENGINEERING, pp. 0–0, 2021, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/93438.