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Showing posts with label How it works?. Show all posts
Showing posts with label How it works?. Show all posts

What will be the change in room temperature if door of refrigerator kept open?

What will be the change in room temperature if door of refrigerator kept open? This question is often asked at mechanical engineering job interview and also in engineering examination.

Ans: NO, Rather, temperature of the room will increase over the time, not instantly.

Why?

To understand this, let us first understand the working of domestic refrigerator. It contains four different equipment namely compressor, condenser, capillary tube and evaporator and it also has refrigerant or working fluid/medium which continuously circulating through all these four different equipment to enable heat transfer and thus cooling. The refrigerant while passing through different parts, changes phase and this enable cooling in domestic refrigerator.

Refrigeration system-Construction and working of 'Ice plant'

We all are aware of domestic refrigerator and its usage. We get ice cubes from freezer compartment to meet daily requirements but to get ice in huge quantity we normally approaches the ice plant or factory. Here, I am going to share overview of construction and working of ice making process and its layout. 

Normally, any refrigeration system consists of four main equipments:

1. Compressor
2. Condenser
3. Throttle valve/flow control valve
4. Evaporator

Construction of Ice plant
But in Ice plant or factory, two additional circuits help us to create ice in huge quantity. Refer to the figure and Video.