In this study, a numerical simulation on the freezing process is carried out to evaluate the effects of pre-dehydration on the quality of frozen fish tissue. We use a simulation model which contains a muscle fiber to express the microscale heat and mass transfer phenomena inside the tissue cell system. Fundamental equations on heat and mass transfer are formulated in a two-dimensional coordinate system. The governing equations include phase-change terms. In order to take account of the characteristic moisture distribution produced by the microwave room-temperature drying, initial moisture distributions are given in this calculation. The numerical results indicate that the control of the water content by the pre-dehydration can shorten the freezing time. It is found that the cell shrinkage ratio is larger than that of the result using uniform distribution. As an increase of pre-dehydration, the central cell significantly shrinks but the surface-layer cell doesn’t shrink so much due to the large cooling rate.
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ASME/JSME 2011 8th Thermal Engineering Joint Conference
March 13–17, 2011
Honolulu, Hawaii, USA
Conference Sponsors:
- Heat Transfer Division
ISBN:
978-0-7918-3892-1
PROCEEDINGS PAPER
Numerical Study on Microwave Dehydro-Freezing of Fish Tissues
Yuichiro Oku,
Yuichiro Oku
Kyushu Institute of Technology, Kitakyushu, Japan
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Hirofumi Tanigawa,
Hirofumi Tanigawa
Kyushu Institute of Technology, Kitakyushu, Japan
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Takaharu Tsuruta
Takaharu Tsuruta
Kyushu Institute of Technology, Kitakyushu, Japan
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Yuichiro Oku
Kyushu Institute of Technology, Kitakyushu, Japan
Hirofumi Tanigawa
Kyushu Institute of Technology, Kitakyushu, Japan
Takaharu Tsuruta
Kyushu Institute of Technology, Kitakyushu, Japan
Paper No:
AJTEC2011-44463, T10006; 6 pages
Published Online:
March 1, 2011
Citation
Oku, Y, Tanigawa, H, & Tsuruta, T. "Numerical Study on Microwave Dehydro-Freezing of Fish Tissues." Proceedings of the ASME/JSME 2011 8th Thermal Engineering Joint Conference. ASME/JSME 2011 8th Thermal Engineering Joint Conference. Honolulu, Hawaii, USA. March 13–17, 2011. T10006. ASME. https://doi.org/10.1115/AJTEC2011-44463
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