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@book{707726, author = {Létal, Jiří and Goliáš, Jan}, address = {Klosterneuburg}, keywords = {mathematical modelling; storage; apples; ethylene concentration}, language = {eng}, location = {Klosterneuburg}, publisher = {Mitteilungen}, title = {Model for the calculation of the ethylene concentration with apples under different storage conditions}, year = {2001} }
TY - BOOK ID - 707726 AU - Létal, Jiří - Goliáš, Jan PY - 2001 TI - Model for the calculation of the ethylene concentration with apples under different storage conditions VL - 51 PB - Mitteilungen CY - Klosterneuburg KW - mathematical modelling KW - storage KW - apples KW - ethylene concentration N2 - Dynamics of ethylene concentration in ambient atmosphere in the experimental storage chamber with apples is described. For controlling the low-ethylene atmosphere there was used a catalytic oxidation of ethylene. The efficacy of the catalytic unit (filled in by granules of palladium and coppery oxide) was discussed and determined as 90-95% depending on the flow of ambient atmosphere through the unit. The catalytic temperature was 320C. The mathematical model of dynamics of ethylene is based on differential equations of first order – it coincides well with experimental data. Parameters of the model include the volume of the chamber, amount of fruits and their production of ethylene, efficacy of the catalytic unit and the flow of atmosphere through the unit. Equations enable to predict the development of ethylene concentration in the case of continual oxidation of ethylene. For apples and selected experimental chamber the limit concentration of ethylene was found 20 ul/l. It appears, that the catalytic system is useful especially for horticultural products with low production of ethylene up to 5 ul/kg.h otherwise the flow rate of atmosphere through the catalytic unit should be much higher. ER -
LÉTAL, Jiří a Jan GOLIÁŠ. \textit{Model for the calculation of the ethylene concentration with apples under different storage conditions}. Klosterneuburg: Mitteilungen, 2001, 6 s. 51.
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