Model based leak correction of real-time RQ measurement for dynamic controlled atmosphere storage
作者： N. Bessemans , P. Verboven , B.E. Verlinden , B.M. Nicolaï
DOI: 10.1016/J.POSTHARVBIO.2017.09.011
关键词: Nuclear engineering 、 Air tightness 、 Controlled atmosphere 、 Leakage (electronics) 、 Virtual storage 、 Atmospheric air 、 Chemistry 、 Leak
摘要: Abstract A method was developed to correct real-time measurements of the respiratory quotient (RQ) pome fruit for gas leakage a cool room. The is based on general model that simplified by performing sensitivity analysis contribution pressure driven and concentration transport terms. showed dominant over diffusive leakage. methodology validated successfully using an empty storage container at 0.4 kPa O2 1.3 kPa CO2. virtual experiments error RQ estimates with leak correction 0%, while without they increased above 700%. Finally, implemented in automated RQ-DCA control system ‘Braeburn’ apple (Malus × domestica 2x). were heavily biased when atmospheric air into occurred would lead erroneous atmosphere composition. With correction, found be accurate during decreasing as well increasing pressure.
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