What is the function of condensing turbines?

The function of condensing turbines is to exhaust steam and return pure water. In a steam power generation cycle, the turbine converts the thermal energy in steam into mechanical energy, which is then used to produce electricity. After the steam passes through the turbine and loses energy, it must be condensed back into water for reuse in the system. The condenser cools the exhausted steam, converting it back into liquid water, which is then returned to the boiler. This process is crucial for maintaining the efficiency of the steam cycle, as it ensures that water is recycled and minimizes waste.

The other functions listed do not accurately describe the role of condensing turbines. For example, vaporizing water pertains more to the initial heating phase in a boiler rather than the function of condensing turbines. Generating heat energy is also not correct since condensing turbines work with the extraction and conversion of energy rather than its generation. Finally, increasing pressure in the system does not relate to condensing turbines, as their primary job is to manage the steam's phase change rather than manipulate the pressure levels within the system.