ENERGY SAVINGS IN COLD

STORAGE INSTALLATIONS

By

Mr. Rajinder Singh

WHY WE NEED TO CONSERVE

ENERGY

• Increasing cost of energy

• Shortage of Electrical Energy in

India

• Global Warming (Carbon

Footprints)

• Ozone Depletion

POTENTIAL FOR SAVING

ENERGY

• Electricity

• Refrigerant Emissions

• Fuel

A SUMMARY ON ENERGY SAVING

POSSIBLE MEASURES FOR ENERGY SAVING

TECHNOLOGY REVIEW

• While designing the cold storages we

should optimize the heat load.

• Selection of Proper Equipments

• More Knowledge & useful experience will

be needed about emerging technologies to

raise the level of best practice.

Application of New Techniques in modern

Cold Storages

ENERGY SAVING ACHIEVEMENTS &

FUTURE TARGETS

LOW COST AUTOMATION

CHANGE OF FOCUS

BASIC EFFICIENCY

EQUIPMENT RUNNING TIME

In Refrigeration applications the total coolingload is usually calculated for a 24-hourperiod. Because of the necessity ofdefrosting the evaporator at frequentintervals, it is not practical to design therefrigerating system in such a way that theequipment must operate continuously inorder to handle the load. In most cases, theair passing over the cooling coil is chilled toa temperature below its dew point, andmoisture is condensed out of the air onto thesurface of the cooling coil.

When the temperature of the coil surface is above the freezing temperature water, the moisture condensed out of temperature of water, the moisture condensed out of the air drains off the coil into the condensate pan and leaves the space through the condensate drain. When the moisture condensed onto the surface of the cooling coil, causing frost on the cooling surface tends to insulate the coil and reduce the capacity of the cooling coil. The frost must be melted off by defrosting the coil, it requires a certain amount of time during which the refrigerating effect must be stopped in the coil being defrosted.

CONCLUSIONTo save energy the following practices must be

implemented.

1. Reducing Heat Loads

2. Uses of latest energy saving equipments

3. Proper Insulation

4. Efficient maintenance practices

5. Automation & Integration

6. Good Training

7. R&D

8. Energy Audit should be mandatory for cold

storages