A physical model to predict climate dynamics in ventilated bulk-storage of agricultural produce

Modelling and control of systems with flow

“…For each approach we mention which controller was designed. In [58] the main goal was to derive a model for the dynamics of the humidity and temperature of the air, for which standard control design is applicable. In [103] a nonlinear lumped multi-scale model was derived to enable model predictive control of temperature, moist-, and sugar content of potatoes in a bulk storage room with outside air ventilation.…”

“…This approximated model resembles a heat transfer model inside a porous medium, which is done for example in [44,58]. The difference is that here there is no bulk conduction.…”

“…The specific area of potato was not reported. From the average size (length 95 mm, diameter 51 mm), the potato density (1014 kg/m 3 according to [58]), and the total weight of the bulk (360 kg), it follows that the column was filled with approximately 3000 potatoes. The total product surface exposed to air, assuming this is 95 % of the total product surface, is 41 m 2 per m 3 bulk.…”

“…There is extensive literature available about the modelling aspects of bulk storage rooms. In [58,103] the main goal is to derive a model describing the dynamics of the enthalpy that is suitable for control design. Extensive CFD models are proposed in [15,16,66,109,110], and experimental validation studies were done in [15,66,109,110].…”

“…There is extensive literature available on the modelling aspects of bulk storage rooms, see for example [58,66,102,103,109,110]. The main goal in these papers is to gain insight in the dynamics of temperature, humidity, and product quality.…”