Jobs Carried Out By Condensing Units

Commercial settings especially the ones that deal with perishable goods often rely upon a refrigeration system for storage. And as far as refrigeration and cold storage are concerned, HVAC systems are the main components. But do you know? An HVAC system relies on a number of other components that help it cool the storage. And when talking about the components of an HVAC system, condensing units are the most important ones. However, condensing units are also one of the least understood.

 

If you too are looking for adding a refrigeration system to your commercial setup, then you need to understand the principle of working on an air conditioning system. It will help you recognize the potential issues. Take a look at the key jobs carried out by condensing units  below:

De-Superheating

Refrigerant takes an exit from your evaporator coil in the form of gas, having absorbed heat from with in the room. The gaseous form of refrigerant then gets into the compressor which packs it up more firmly together, increasing its temperature in the process. The condensing unit's job here is to lower the temperature of the refrigerant enough for it to transform back into its liquid form.

The first job that a condensing unit needs to accomplish is known as de-superheating. When the temperature of a gas rises beyond its saturation temperature, the gas gets into its superheated state. The refrigerant of the air conditioning system exists in a superheated state as it flows out of the compressor to the condenser which is hence required to cool back down to its saturation temperature before it can be condensed into its liquid form. The gaseous refrigerant keeps passing through the condensing units until it is de-superheated.

Condensation

When a refrigerant superheats gets rejected, the actual process of condensation begins which involves the transformation of the gaseous refrigerant into its liquid state. The mechanism of this process is the same as that of de-superheating i.e. the refrigerant keeps on circulating through the condensing unit in multiple passes. As the refrigerant flows through the condensing units, the multitude of fins of the condenser allows heat to transfer to the surrounding air. A fan on the top of the condensing unit makes sure that the heated air hence transferred cools down quickly, enabling the process to continue. When the temperature of the refrigerant lowers beneath its saturation temperature, it begins to transform into a liquid automatically.

Sub-Cooling

Once all the refrigerant gets converted into a liquid state, it is said to be in a fully saturated state. However, at this point, the refrigerant still remains quite volatile i.e. even a small rise in temperature can cause part of it to shift back to a gas. The condensing unit increases the effectiveness of the refrigerant by continuing to cool it beyond its saturation temperature. This process is termed sub-cooling which enhances the stability of the refrigerant.

 

Conclusion:

Africhill manufactures condensing units of the highest standards. If you are looking for one then visit https://africhill.co.za/contact-us/