Characterising airflow and heat transfer within a Multi-Package of horticultural produce using a validated CFD model
Résumé
The analysis revealed that in the current tray design (TD 1) with a single main trapezoidal orifice on the longitudinal surface, airflow was uneven, with 24% traversing the headspace and 76% through the channels between ACs. This design caused recirculation near the tray's edge and poor ventilation within the channels of this area, leading to heterogenous cooling among ACs. This heterogeneity in cooling resulted in differences of up to 2 h in Half Cooling Time.
Numerical simulations indicated that adding ventholes to the tray does not guarantee an improved cooling rate and uniformity. The effectiveness of vent holes depended on their placement relative to ACs arrangement.
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