Approximate method for rates of change of temperature distribution in heated thick films

• Published in: Food control Vol. 6; no. 2; pp. 101 - 104
• Main Authors: Grosser, Arthur E., Brunet, Sophie M.K.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 1995
• Subjects: distribution; duration; equations; food processing; half heating time; half-time; heat transfer; packaging; prediction; slab; temperature; temperature distribution; thermal gradient; thickness; transient temperatures; temperature distribution; transient temperatures; thermal gradient; half-time; packaging; film; heat transfer; slab
• ISSN: 0956-7135; 1873-7129
• DOI: 10.1016/0956-7135(95)98913-L

Approximations are developed for the thermal distributions that arise in thick films heated in an infinite heat bath. The concept of the half-heating time, the time necessary to raise the temperature of the film from ambient to a value midway between the heat bath and the ambient temperatures, leads to simple relations which aid in estimating these distributions, their rate of development and the functionalities of their dependence on the properties of the material