Which type of condenser is classified as a commonly used one in refrigeration systems?

In refrigeration systems, the most commonly used type of condenser is the water-cooled condenser. This is largely due to its efficiency in heat transfer and ability to effectively manage the heat rejection process required in refrigeration cycles.

Water-cooled condensers utilize water to absorb heat from the refrigerant, facilitating a more efficient thermal exchange compared to air-cooled condensers. This results in a smaller footprint and often lower operating costs, particularly in larger systems where cooling loads are substantial. Water's high specific heat capacity makes it an excellent medium for heat removal, enhancing the condenser's overall performance.

While air-cooled condensers are also used — especially in smaller applications or where water availability is limited — they typically require larger surfaces and may not perform as well under high ambient temperature conditions. Shell and tube and plate type condensers are more specialized designs and are usually employed in industrial or specialized applications rather than common refrigeration systems. Thus, the preference for water-cooled condensers in refrigeration arises from their effectiveness and operational efficiency.