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Presenting a power point presentation on Air Refrigerator.

Press F5 AND SEE ANNIMATION POWER POINT …DOWNLOAD FIRST….

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Content:-

IntroductionWorking.

Advantages .Dis advantages.

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Introduction:-

Air refrigerator is one of the oldest type of

refrigerator .

In this refrigerator air is refrigerant and operates on Bell Coleman Cycle.

It consists of :-

• Compressor• Expander• Cooler• Cold storage

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Working

Air from cold storage is sucked by air

compressor.

Air is compressed isotopically in compressor, pressure and

temperature of air increases .

PROCESS 1-2

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PROCESS 2-3

The hot air from the compressor is

cooled at constant pressure

in the cooler.

Temperature of air is reduced

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PROCESS 3-4High pressure and

the low temperature air is

expanded isentropically in the

expander .

But this work is not sufficient for

compressor and so external source is

used to supply extra work to compressor.

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PROCESS 4-1

The cold air from the expander passes heat from the bodies that is required to be cooled.

Then it again enter into the compressor,

cycle is completed and it is repeated

again and again.

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8Dis-

advantage:-

It require

s

large

power.

It requires more

space.

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Advantages of air refrigerator

As compared to the other refrigerator , weight of the refrigerator per ton of

refrigerator capacity is low.

Air is freely available from the nature .

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THANK YOU!!!!