Вычисление изменения температуры воздуха во фризере во время замораживания тополиных кряжей
Journal Title: Annals of WULS, Forestry and Wood Technology; Zeszyty naukowe SGGW - Year 2016, Vol 96, Issue 1
Abstract
Equations for the computation of the experimentally determined change in the processing air medium temperature Tm in freezer during freezing of logs have been suggested. The decreasing of Tm during the freezing of the logs is approximated by exponential equations, which after determined processing time go into linear equations. The values of the variables in the suggested equations have been determined in the work for the case of the change in Tm from about 25 о С to about –30 о С during separatly 50 h freezing in freezer of two poplar logs with diameter of 240 mm and length of 480 mm. The suggested equations are necessary for participation in the boundary conditions of mathematical models, which describe the logs’ freezing process at concrete values of the processing air medium’s parameters. Keywords:
Authors and Affiliations
НАТАЛИЯ ТУМБАРКОВА, НЕНЧО ДЕЛИЙСКИ, ЛАДИСЛАВ ДЗУРЕНДА, ИЗАБЕЛА РАДКОВА
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