FREEZER IS KEPT AT TOP OF REFRIGERATOR

REASON WHY FREEZER IS KEPT AT TOP OF REFRIGERATOR :

A refrigerator is household appliance which

has property of cooling. Freezer unit are used

in household and industry and commerce.

In our day today life refrigerator plays major

role in storing food ,ice cream and snacks.But

we never thinked why the freezer is kept at

top of refrigerator and not on lower side.

Most of the household as well as commercial refrigerators work on vapour compression cycle. there is device called EVAPORATOR in arrangement . In evaporator ,the heat is extracted from the refrigerator space .The refrigerant gains ,which is initially in liquid state gets evapourated.The heat removed from the cooling space is more than the latent heat of evaporation ,and hence the term cooling through evaporation is used.

The freezer is the part of the refrigerator,which is at the lowest temperature. It is kept at the top, so that internal circulation of air happens readily.The cooler air which surrounds the freezer becomes dense and goes downward.The warmer air at the bottom then moves to top and the cycle continues.

Thus freezer is kept at top of refrigerator......

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