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Thermal Properties of Cooked Beef as Affected by Vacuum Cooling and Conventional Cooling

机译:受真空冷却和常规冷却影响的熟牛肉的热性能

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Four cooling methods, i.e., vacuum cooling, air blast cooling, immersion cooling and cold storage, were used to cool cooked beef. The thermal conductivity k, specific heat C{sub}p and thermal diffusivity α of the cooled samples were determined and the data were compared with the uncooled sample. These properties were significantly affected by loss of moisture due to cooling treatment, particularly vacuum cooled samples. Vacuum cooled samples had lower thermal conductivity, specific heat and thermal diffusivity than all other treatments as a direct result of high moisture loss due to the cooling method.
机译:四种冷却方法,即真空冷却,空气鼓风,浸渍冷却和冷藏,用于冷却煮熟的牛肉。确定冷却样品的热导率K,特异性热C {亚} P和热漫射率α并将数据与未冷却样品进行比较。由于冷却处理,特别是真空冷却样品,这些性质受到湿度损失的显着影响。真空冷却样品的导热率降低,比所有其他治疗具有较低的导热率,比热和热扩散率,作为由于冷却方法引起的高湿度损失的直接结果。

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