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Giáo trình công nghệ sau thu hoạch - Chương 6

Tài liệu tham khảo Giáo trình công nghệ sau thu hoạch - Chương 6 | Cold and CA Storage 10 23 2009 Th.S Truong Thi My Linh 1 A. External ambient into which the heat is rejected 6 Machine room c. Cold room in which the heat is absorbed 1. Compressor 2. Motor 5 ỮÍI trap 4. Air condenser 5. Liquid receiver with transparent level 6. Air cooler wall type 7. Evaporator finned tube fl. Solenoid valve controlled with the motor-compressor 9. Thermostatic expansion valve 10. Gutter for evacuating defrost water 11. Water spray water defrost 12. Fans 13 Constant pressure valve 14. Liquid anti-slugging device for halocarbons Fig.1.1. Diagram of a cry expansion installation freon suitable for refrigeration of fresh produce. 10 23 2009 Th.S Truong Thi My Linh 2 Table 1.1. Suggest storage conditions for fresh produce RH relative humidity. depends on origin and variety SL store Itfe expected in practice d days w weeks m months Storage Temp Rance Fruits Storage conditions Vegetables Storage conditions C RH SL C RH SL A.pple 0 to 4 90-95 2-6 m Artichoke 0 95 3-4w Apricot 0 90 2-4w AsparsiẽELS 0 to 2 95 2-3w Cherry 0 90-95 l-2w Cabbage 0 95 l-3m Dateifresh 0 85 l-2m Carroựtcipp ed 0 95 5-6m Grape -1 to 0 90-95 l-4m Cauliflower 0 95 2-3w Kiwifruit -0.5 90-95 8-14w Celery 0 95 4-12w Lemont coloured 0 to 45 85-90 2-6m Carat sweet 0 95 lw Ũ to 4 Orange 0 to 4 85-90 3-4m Garlic 0 65-70 6-7m Peach 0 90 2-4w Leek 0 95 l-3m Pear 0 90-95 2-5m Lettuce 0 95 l-2w Plum 0 90-95 2-4w biuchroom 0 90-95 5-7d Rasberry 0 90-95 l-4d Oniontdry 0 65-70 6-8m strawberry 0 90-95 l-5d Peasfunshelled 0 95 l-3w Potdoe seed 2 to 3 90-95 l-2w Spinach 0 95 .