Volume 5
Issue 2
Agricultural Engineering
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Available Online: http://www.ejpau.media.pl/volume5/issue2/engineering/abs-03.html
EXPERIMENTAL AND ANALYTICAL DETERMINATION OF FREEZING POINT DEPRESSION
Dariusz Góral, Franciszek Kluza
ABSTRACT
The work presents characteristics of determination and prediction of the freezing point of agricultural products and food with some analytical methods. Using 11 models and special software this property was computed including 299 freezing cases of differentiated products. To obtain that the authors experiments (52 products) were made. The data concerning other cases were drawn from literature. Model accuracy was estimated on the basis of results from the statistical analysis of relative error of prediction. The Chang-Tao’s method was regarded the best owing to its universality, while Salvadori-Mascheroni’s one the least accurate.
Key words: freezing, freezing point, prediction methods.