Which of the following is a type of condenser used in ammonia refrigeration?

The correct answer identifies the different types of condensers that can be used in ammonia refrigeration systems, specifically air-cooled, water-cooled, and evaporative-cooled condensers.

In ammonia refrigeration, condensers play a crucial role in the refrigeration cycle by rejecting heat from the refrigerant, allowing it to condense from a gas into a liquid. Each type of condenser operates based on different methods of cooling:

• Air-cooled condensers transfer heat to the surrounding air using fans to increase the airflow and enhance cooling efficiency.

• Water-cooled condensers utilize water as a cooling medium, often using a cooling tower to dissipate heat away from the system.

• Evaporative-cooled condensers combine air and water cooling to achieve more efficient heat exchange by enhancing heat transfer through evaporation.

These options are vital for the efficient operation of ammonia refrigeration systems, as they help maintain optimal refrigerant temperatures and pressures necessary for effective refrigeration.

The other options do not fit within the context of condensers used in ammonia refrigeration. For instance, a thermal condenser is a term that may refer more broadly to any device that functions to condense vapors due to heat exchange rather than a specific type of condenser relevant to ammonia systems. A mechanical condenser is not