Three-dimensional Heat Transfer Modeling in Japanese Pears (Pyrus pyrifolia) during Tempering
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概要
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This research was conducted to study heat transfer in Japanese pears based on their exact geometry as measured by a 3D laser scanner. Some of the thermal properties of three cultivars of Japanese pear (Pyrus pyrifolia) were measured, boundary conditions were defined and heat transfer modeling was conducted using COMSOL Multiphysics 4.2a software based on the finite element method. The thermal conductivity of each examined cultivar was estimated from the model and found to be 0.66 ± 0.01, 0.56 ± 0.09 and 0.58 ± 0.06 W/m·K for Kosui, Niitaka and Oushu, respectively, which are acceptable comparing to other fruits. The thermal diffusivity of the cultivars was also calculated and was in the range of 1.37 × 10−7 to 1.76 × 10−7 m2/s. Low RMSE values of the model results compared to experimental data were observed. The model was validated with data obtained from a thermal camera and the results showed that the model is successful in predicting the temperature profile inside the fruit at any time.
- 社団法人 日本食品科学工学会の論文
著者
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Tanaka Fumihiko
Faculty Of Agriculture Kagoshima University
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Uchino Toshitaka
Faculty Of Agriculture Kyushu University
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Hamanaka Daisuke
Faculty Of Agriculture Kyushu University
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HAMANAKA Daisuke
Faculty of Agriculture, Kyushu University
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REZAGAH Maryam
Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University
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ISHIDA Sayaka
Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University
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- Three-dimensional Heat Transfer Modeling in Japanese Pears (Pyrus pyrifolia) during Tempering