How are surface steam condensers constructed?

Components of Surface Condenser The condenser is provided with a horizontal cast-iron of cylindrical-shaped vessel, water tubes where water flows, and exhaust steam inlet that allows the steam inflow into the cylinder, a baffle, 2 vertical tube plates that are present on either side of the condenser.

What are the advantages of surface condenser?

Advantages and disadvantages of surface condenser

• Condensate is free from impurities.
• Since there is no mixing, cooling medium (water) of poor quality can be used.
• Cooling of condensate can be easily controlled by regulating the flow of cooling medium.
• Suitable for large plants.
• Greater plant efficiency.

What is the difference between condenser and surface condenser?

Surface condensers (or non-mixing type condensers). In surface condensers, there is no direct contact between the exhaust steam and the cooling water. Jet condensers (or mixing type condensers). In jet condensers there is direct contact between the exhaust steam and cooling water.

How does a surface condenser work in a steam turbine?

A surface condenser is a commonly used term for a water-cooled shell and tube heat exchanger installed to condense exhaust steam from a steam turbine in thermal power stations. These condensers are heat exchangers which convert steam from its gaseous to its liquid state at a pressure below atmospheric pressure.

What is the objective of a surface condenser?

The objective of condenser is to condense the steam before it enters the reboiler. The surface condenser consists of bundles of tubes in which cooling water flows. Steam flows outside of the condenser tubes. Condensate flows out at the base of the condenser to a hot well where it is ready to re-enter the water-steam cycle.

What kind of heat exchanger is a surface condenser?

Surface condenser. A surface condenser is a commonly used term for a water-cooled shell and tube heat exchanger installed on the exhaust steam from a steam turbine in thermal power stations. These condensers are heat exchangers which convert steam from its gaseous to its liquid state at a pressure below atmospheric pressure.

Where does the heat transfer take place in a surface condenser?

As already mentioned, the surface condenser is the type most commonly used in modern power plants and thus is the only one discussed. Here, the main heat transfer takes place at the outside of the tube, thereby cooling vis-à-vis condensing of saturated steam, thus heating the CW inside the tube.