Ac Condenser

 Air Conditioner Condenser

The condenser of an air conditioner is basically a heat exchange devise which dissipates the heat present in high pressure vaporous refrigerant. It transforms the gaseous coolant into a low pressure cool liquid to make it ready for the next cooling cycle. If compared within evaporator, the operation principle of an evaporator and the condenser is almost the same. While in an evaporator,the cool refrigerant inside it absorbs the heat present in the room air. In the process cool refrigerant turns into vapor by absorbing heat while the air gets cooled. On the other hand,the condenser rejects the heat present inside the vaporized refrigerant to the surrounding air.

 How does a condenser work?

Let us take a loo into the cooling cycle of an AC to understand the functioning of a condenser. The evaporator cools the air by absorbing the heat from the room air. It is this cold air that is circulated again to the rooms to cool them. The refrigerant which has been vaporized due to absorption of heat is sent to the compressor to compress it at a high pressure. The compressed refrigerant is sent to the condenser.

 The condenser unit takes in the refrigerant gas from the compressor and turn it into high-pressure, high temperature liquid refrigerant. But how does it do it? It does it by the following steps:

Step#1: The first task of a condenser is to de-super heat the hot vapor that comes from the compressor. It has to be de-super heated till it reaches the saturation point. De-super heating is the process of removing heat from hot and vaporized refrigerant to reduce its pressure and temperature.

Step#2: This step begins at the middle of the condenser. At this stage the refrigerant is in semi gas and semi liquid form. By the end of this step, the refrigerant transforms into 100 percent liquid refrigerant.

Step#3: The temperature of the refrigerant reaches below the liquid saturation point. It is sub cooled.

 What are the types of air conditioner condenser?

The condensers of an air conditioner are classified according to way they reject heat into the surrounding. They can therefore be classified into three categories:

• Air cooled condenser
• Earth cooled condenser (Geothermal Heat Pumps)
• Water cooled condenser

 Air cooled condensers:

These condensers are mostly used in residential air conditioners. They are sometimes used in commercial ACs a swell. The air cooled condenser has very basic working principle. The condenser unit gives away the heat that the refrigerant has absorbed form the room air. The condenser unit has an array of parts to help it carry out the process. The condenser housing has condenser fan blade, condenser motor, and
condenser coils.

The compressor is also present in the condenser cabinet but it does not play any role in heat dissipation. The purpose of the fan is to incrementalist's capacity in releasing heat. It propels the hot air expelling it outside the AC. The fan is mounted on the top part of the unit. The condenser coil has the vaporous refrigerant which is cooled in the due process. The condenser runs with a motor.

Air cooled condenser comes into two types:

• Fin and tube condensers
• Plate condensers

 Geothermal condensers

The components of geothermal condense rare same as air cooled condenser. The only diffidence lies in the fact that the heat exchange in conventional condenser is substituted by geothermal loop. Geothermal heat pumps do not have any outdoor unit. The job of an outdoor unit is done heartthrob in this case. The outdoor heat exchange becomes a water cooled coil. This implies that the water in the geothermal loop flows to the condenser to exchange heat with it. To boost this process a small water pump is installed. Its role is very similar to that of a traditional condenser fan.To make geothermal heat pump work, the internal unit has an important role to play. The refrigeration piping, circuiting, and equipment are presenting the internal cabinet.

 Water Cooled Condenser

The water cooled condenser is very similar to air-cooled condenser. The only difference lies in the fact that it releases the heat into the water. However to ensure that the condenser remains at the peak of its efficiency, the water needs to be clean, noncorrosive, and a ta specific temperature. Asa result the water requires treating or changing at regular intervals to prevent corrosion, algae, scale, chalky, and mineral deposits. Although these need regular maintenance, they are more efficient than air cooled condensers. They also operate at much lower condensing temperature.

Water cooled condensers can be of three types. They are:

• Tube in tube
• Shell and coil
• Shell and tube

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