What happens to steam when it passes through the condenser?

Surface condenser Commonly, the cooling water flows through the tube side and the steam enters the shell side where the condensation occurs on the outside of the heat transfer tubes. The condensate drips down and collects at the bottom, often in a built-in pan called a hotwell.

What is a steam dump valve?

The steam dump valves are open and dumping steam to the main condenser to maintain the desired pressure in the main steam system. As the turbine governor valves open, steam is admitted to the high pressure turbine, which causes the steam pressure in the main steam header to decrease.

What is meant by condensing steam?

A condensing steam turbine is provided with a vacuum device at its exit (the condenser) where the forced flow of an external coolant (water or air) maintains the outlet pressure at a level dependent only on the coolant inlet and outlet temperatures.

What is a condenser Waterbox?

Waterbox. Cooling water flows through the waterboxes, which are installed at opposite ends of the condenser. One end of the condenser forms the inlet, whilst the other forms the discharge. Depending upon the size of the unit, a condenser may have one or more inlets and discharges (more than two is unusual).

How is steam condensed in a condenser?

At the top of the condenser, the exhaust steam enters and flows downwards because of the suction of the air extraction pump. When the steam flows in contact with the tubes containing cooling water, the steam condenses, where the heat transfer is conducted by conduction and convection processes.

What is the advantage of condensing the steam?

The advantage of using condensing steam engine is to increase the work output equal to shaded area (4-5-7-6). Therefore, the condenser is a heat transfer device in which the exhaust steam of a turbine or an engine is condensed by means of cooling water at pressures below atmospheric.

What is condensate in condenser?

The condensed steam (now called condensate) is collected in the condenser’s hotwell. Condenser’s hotwell also provides a water storage capacity required for operational purposes such as feedwater makeup.

What is the purpose of condenser in steam power plant?

In thermal power plants, the purpose of a surface condenser is to condense the exhaust steam from a steam turbine to obtain maximum efficiency, and also to convert the turbine exhaust steam into pure water (referred to as steam condensate) so that it may be reused in the steam generator or boiler as boiler feed water.

In which the exhaust steam is condensed?

Condensers: A condenser is a device that condenses the steam at the exhaust of the turbine.

What is the function of condenser in HVAC?

The purpose of the condenser is to receive the high-pressure gas from the compressor and convert this gas to a liquid. It does it by heat transfer, or the principle that heat will always move from a warmer to a cooler substance.