In this post, we will learn the difference between an absorption chiller and an electric chiller used in HVAC systems.
HVAC is a very vast field and it comprises of many devices. One of the main components of HVAC is a chiller. A chiller is a refrigerant component that is used to cool the temperature of the water, air, or evaporation.
They are used in many commercial and industrial applications. Chillers are classified into various types.
One of them is classified based on a general working principle.
They are
In this post, we will see the difference between an absorption chiller and an electric chiller.
In this system, a compressor is used to compress the refrigerant gas. The gas is then pushed by the compressor and rotated in the whole circuit. This means that the vapor is compressed and then rotated in the whole system by the compressor. So, in this chiller, the compressor is an integral part.
Centrifugal water chillers use dynamic compression to convert kinetic energy to static energy. To increase the pressure and temperature of the refrigerant, the impeller blades draw the refrigerant in.
Once it has passed through the impeller, the refrigerant is at a higher pressure and in a condition that allows its heat to be rejected from the chiller.
Unlike the previous one, this method does not use a compressor; but instead, it uses a heat source to move the refrigerant around the circuit. The heat source can be hot water or steam. The main components instead of the compressor are the absorber, pump, and generator.
In an absorption chiller, the generator uses a high-temperature energy source, usually steam or hot water, which flows through the tubes and boils off the refrigerant into vapor.
The vapor moves to the condenser and the concentrated solution returns to the absorber. In the absorber, the refrigerant vapor is absorbed by the solution and condenses into a vapor, releasing the heat it acquired in the evaporator.
The following are the key difference between the electric chiller and absorption chiller are mentioned below.
In this way, we understand the difference between an absorption chiller and an electric chiller.
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