Titre :
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Influence of ventilation and stacking pattern of corrugated Fibre Board containers on forced-air pre-cooling of 'Nagpur' Mandarins
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Auteurs :
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M. Ladaniya ;
S. Singh
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Type de document :
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article/chapitre/communication
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Année de publication :
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2000
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Format :
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p. 233-237
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Langues:
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= Anglais
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Catégories :
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TECHNIQUE FRIGORIFIQUE
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Mots-clés:
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FRUIT
;
PREREFRIGERATION
;
CONTENEUR
;
PALETTE
;
CONVECTION FORCEE
;
VITESSE DE L'AIR
;
VITRINE FRIGORIFIQUE
;
VENTILATION
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Résumé :
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Corrugated Fibre Board (CFB) boxes with 2.0%, 3.0% and 6.0% of ventilation and various stacking patterns were tried for forced-air precooling of 'Nagpur' mandarins (Citrus reticulata Blanco) fruits at 8 ± 1 °C with 90-95% relative humidity. The seven-eighths cooling time (for downstream fruit) decreased from 36 to 53% as the side ventilation in CFB boxes (50 (L) x 30 (W) x 30 (D) cm outer dimensions) increased from 2.0 to 6.0% in different stacking patterns without changing refrigeration capacity. It took 8 h for 7 8th cooling of downstream fruit from initial temperature of 25 - 26°C in 32 boxes (592 kg fruit) with 6.0% ventilation, as compared with 12 h and 30 min for the same number of boxes with 2.0% ventilation. Increased stack width from 30 to 60 cm and decreased stack depth from 100 to 50 cm (keeping the box number equal i.e. 16) increased cooling time and air pressure drop and decreased air velocity and air flow. The upstream fruit in the stack was cooled earlier than downstream fruit near air tunnel. Increased ventilation from 2.0 to 6.0% on side panels increased air flow (m min kg fruit) in CFB boxes and thus reduced cooling time.
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Source :
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Journal of food science and technology : (Mysore), vol.37, n°3
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