日本食品保蔵科学会誌
Online ISSN : 2186-1277
Print ISSN : 1344-1213
ISSN-L : 1344-1213
水産物の熱物性値の測定と推算モデルの選定
村松 良樹, 坂口 栄一郎, 折笠 貴寛, 永島 俊夫, 田川 彰男
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2012 年 38 巻 1 号 p. 11-18

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 The thermophysical properties (thermal conductivity, thermal diffusivity, and specific heat) of salmon, skipjack, and scallop were determined at seven different temperatures between 5°C and 50°C. The transient heat flow probe method was used for the simultaneous estimation of the thermophysical properties of samples of these fish. The effects of temperature on the thermophysical properties of the samples were investigated. The thermal conductivity and thermal diffusivity of the samples increased with the temperature. The specific heat of the samples was almost equal in the range of measurement temperatures. The observed values of the thermal conductivity of the samples were compared with the values calculated from three typical structural models for thermal conductivity, i.e., the series, parallel, and random models. The most suitable prediction model for the samples was the parallel model. The observed values of the thermal diffusivity for the samples agreed well with the values calculated from Martens’s equation. An additive relationship exists between the specific heat of the sample, the composition, and the specific heat of each component.

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© 2012 一般社団法人日本食品保蔵科学会
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