Prediction of Mass-Average and Surface Temperatures, and the Temperature Profiles At the Completion of Freezing For Shapes Involving One-Dimensional Heat Transfer
Küçük Resim Yok
Tarih
1992
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Wiley-Blackwell
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
A model for predicting the temperature profiles of simple-shaped foodstuffs at the end of freezing was developed. It was shown that with appropriate selection of effective thermal diffusivity and initial temperature data, the standard solution of the unidimensional unsteady state heat conduction equation can be used in predicting the average and surface temperatures of infinite slabs at the end of freezing operation. For the calculation of average and surface temperatures in infinite cylinders and spheres, unsteady state solutions were corrected by an empirical factor that was derived from temperature profiles predicted by an accurate finite difference scheme. The temperature profiles calculated from the proposed model were compared with the predicted results obtained from a numerical model. Mean absolute errors between the predictions of the proposed model and the numerical model were 0.54C and 0.46C for average and surface temperatures, respectively.
Açıklama
Anahtar Kelimeler
Kaynak
Journal of Food Process Engineering
WoS Q Değeri
N/A
Scopus Q Değeri
Q2
Cilt
15
Sayı
4
