摘要
目的建立控温包装控温时间预测模型,保护温度敏感产品在一定时间内不受外界温度变化的影响。方法以典型长方体产品的控温包装为研究对象,通过计算控温包装系统热阻及控温包装内蓄冷剂的吸热量,建立控温包装控温时间预测模型。同时,基于2种典型控温包装产品在296,308,318 K等3个温度环境中的储藏试验,进行理论与实验验证。结果实际控温时间比模型预测时间长,但偏差均小于10%。结论该理论模型能准确地预测控温包装控温时间,研究成果为控温包装设计提供了理论依据。
Objective To establish a prediction model of insulating package shelf life to prevent temperature sensitive prod- uct from being influenced by temperature during the available period. Methods An available period prediction model for the typical insulating package of rectangular product was established by calculating the thermal resistance of insulating container and the total heat absorption of refrigerant. The validity of the proposed model was confirmed by experimental data based on storage experiment of two typical insulating packages at three temperatures （296,308,318 K）. Results The experimental val- ues were larger than the model values. But the deviations were below 10%. Conclusion The result indicated that the proposed model could accurately characterize the shelf life of insulating package, which provides theoretical reference for the design of insulating packages.
出处
《包装工程》
CAS
CSCD
北大核心
2014年第5期27-30,136,共5页
Packaging Engineering
关键词
控温包装
冷链
传热
预测模型
insulating package
cold-chain
heat transfer
prediction model
shelf life
