摘要
在升华干燥阶段应用传热传质理论对冰均匀退却 (URIF)模型进行了改进与完善 ,在解吸干燥阶段假设结合水的脱除随物料温升的变化率为常数 ,建立了冷冻干燥模型。通过解析求解 ,得出了冷冻干燥过程时间的解析表达式 。
During sublimation drying, using the method of mass and energy transfer to mend the URIF model,during desorption drying process, supposing the desorption rate with the change of tempetature is constant. Through analysis resolving,abtain the exp-ression of drying time. It is convenient in engineering application.
出处
《冷饮与速冻食品工业》
2002年第4期1-3,共3页
Beverage & Fast Frozen Food Industry
