Cold Storage Systems Cold storages can be divided into two main - - PowerPoint PPT Presentation

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Cold Storage Systems

Cold storages can be divided into two main categories:

Passive Stores

Built for storage of perishable goods for medium to long term period. Typical Application Area - storage of fresh fruits and vegetables.

Active Stores

Refrigerated warehouses required for dynamic storage applications. Frequent movements of products on daily/ regular basis. Various temperature zones are created within the same warehouse for storing of different products requiring different temperatures. Typical Application Area – Ice Cream, Frozen food etc.

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Current Situation in India

Passive Cold Stores

India has many passive cold storages for fresh fruits & vegetables as part of cold chain. To further support distribution

• f fresh fruits and vegetables these capacities are being created

all across India. At present no sorbtion technologies are being applied in these cold stores.

Active Cold Stores

At present very little active cold storage capacity exist in India. Limited only for special products and in metros. With the distribution of various food products requiring cold storage facilities, this capacity will increase.

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Humidity Problems

in

Cold Stores

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Typical Problems in Active Cold Storage

Wet floors and ice build up on walls, floors and conveyors. Ice build up on evaporator coils. Frost build up near the loading docks. FOG in the Loading Dock. Moisture absorption by cardboard cartoons etc which causes cartons soften and sag making them unstable and hazardous to workers as well as un-markable. Extra cost for defrosting and frosting.

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Active Storage – Schematic

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Typical Active Cold Storage Problem Schematic

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Live Example - FROSTING

Source – Uniliver Facilities for Storage of Ice-cream, Indonesia

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Live Example - FOG

Source – Uniliver Facilities for Storage of Ice-cream, Indonesia

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Live Example - FOG

Source – Uniliver Facilities for Storage of Ice-cream, Indonesia

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Live Example - DOOR FROSTING

Source – Uniliver Facilities for Storage of Ice-cream, Indonesia

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Live Examples PACKING DAMAGE / WET FLOORS

Source – Uniliver Facilities for Storage of Ice-cream, Indonesia

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Moisture ingress in the docking area due to: Frequent opening of the doors Fresh air Permeation through walls/ structures People load Product load Cracks Wet surface Wall opening

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Advantages of dehumidified cold storage

– Improve worker safety

– Ice & frost free storage ensures quality – Reduce electrical & mechanical failure – Less downtime – Lower maintenance cost – Reduce defrost requirement – Increase efficiency of evaporators

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Moisture load due to various sources in loading dock

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P- Chart Presentation

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Installation Options

Thank You !!!

for giving us the time for this presentation