Which condenser type is not used in steam power plants?

Which condenser type is not used in steam power plants?

• A. Barometric condenser
• B. Contact condenser
• C. Surface condenser
• D. Vacuum condenser

Answer: (D)

In steam power plants, condensers are designed to turn exhaust steam back into water while keeping back pressure as low as possible. The common configurations are surface condensers (shell-and-tube where cooling water flows inside the tubes and the steam condenses on the outside), direct-contact condensers (cooling water directly mixes with the exhaust steam to condense it), and barometric condensers (a type of surface condenser that uses a barometric leg to create a low pressure and separate condensate). A dedicated “vacuum condenser” isn’t used as a separate condenser type because the vacuum condition is simply the operating pressure inside the condenser, achieved by the plant’s vacuum system, not a distinct condenser design. So a vacuum condenser isn’t a separate, used type in steam power plants.

In steam power plants, condensers are designed to turn exhaust steam back into water while keeping back pressure as low as possible. The common configurations are surface condensers (shell-and-tube where cooling water flows inside the tubes and the steam condenses on the outside), direct-contact condensers (cooling water directly mixes with the exhaust steam to condense it), and barometric condensers (a type of surface condenser that uses a barometric leg to create a low pressure and separate condensate). A dedicated “vacuum condenser” isn’t used as a separate condenser type because the vacuum condition is simply the operating pressure inside the condenser, achieved by the plant’s vacuum system, not a distinct condenser design. So a vacuum condenser isn’t a separate, used type in steam power plants.