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用瞬态热流法测定玉米的热导率。玉米的含水率为9.25%~17.14%,温度为-32.3~17.2℃。结果表明:用0.40A电流测得的热导率与用0.44和0.36A测得的热导率没有明显差别;在加热时间分别为8,9和10min测得的热导率之间也没有明显差别。热导率与含水率和温度呈现良好的线性关系。
Determination of Corn Thermal Conductivity by Transient Heat Flux Method. The moisture content of corn is 9.25% ~ 17.14%, the temperature is -32.3 ~ 17.2 ℃. The results show that there is no significant difference between the thermal conductivity measured with 0.40 A current and the thermal conductivity measured with 0.44 and 0.36 A; the thermal conductivity measured with heating time of 8, 9 and 10 min respectively There is no significant difference between. Thermal conductivity and moisture content and temperature showed a good linear relationship.