What is central flow surface condenser?
Centralflow surface condenser Central flow surface condenser is an improvement of downflow surface condenser. In this condenser, exhaust steam enters at the top of the condenser and flow downwards due to gravitational force. But suction pipe of the extraction pump is placed at the center of this condenser.
Which is the surface type of condenser?
A surface condenser is 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 difference between surface condenser and tubular condenser?
There is not much difference in them from a basic standpoint. Both are “Shell & Tube Exchangers”. Both normally have Cooling Water in the Tubes and the commodity to be cooled in the Shell. The big difference is where they are located, their relative size, what they are associated with and what the Shell commodity is.
Which type of condenser is most suitable for propulsion turbine?
Titanium condenser tubes are usually the best technical choice. However, titanium is a very expensive material, and the use of titanium condenser tubes is associated with very high initial costs.
Where is surface condenser used?
Definition: Surface condensers are mainly used in large power plants and refrigeration systems. The main purpose is to condense the exhausted steam in order to obtain high efficiency and convert the steam into impurity-free water which can be used in a steam generator or steam boiler.
Which is not type of surface condenser?
1. Which of the following is NOT a type of surface condenser? Explanation: Ejector condenser is a type of jet condenser and not a surface condenser.
Where is the surface condenser used?
What are the requirements of a modern surface condenser?
REQUIREMENTS OF A MODERN SURFACE CONDENSER The amount of cooling water being circulated in the condenser should be so regulated that the temperature of cooling water leaving the condenser is equivalent to saturation temperature of steam corresponding to steam pressure in the condenser.
Which turbine uses a condenser?
Steam Turbines The noncondensing type of steam turbine uses high-pressure steam and exhausts a lower-pressure steam to a header. The condensing turbine exhausts to a surface condenser, which usually is a large exchanger with a hot well attached but may take the form of an air fan, to recover condensate.
Which condenser is more suitable for high power capacity plants?
The surface condenser is the type most commonly used in modern power plants and hence it will be the only one taken into consideration. Here, the main heat transfer takes place at the outside of the tube, thereby cooling vis-a-vis condensing of the saturated steam, and hence heating of the CW inside the tube.
What is a steam surface condenser?
A surface condenser or steam condenser is a water-cooled shell and tube heat exchanger used to condensate the exhaust steam from the steam turbine in thermal power stations: the steam is converted from gaseous to liquid state at a pressure level below atmospheric pressure.
How does a downflow surface condenser work?
In a downflow surface condenser, the hot steam enters from the top of the condenser. The flow of steam in the ‘downflow surface condenser’ is in the y (-ve) direction that is in a downward direction with respect to the whole system. The flow of steam is downwards because of gravity and vacuum created by the air pump.
What is a central flow surface condenser?
A central flow surface condenser is an advanced and improved version of a downflow surface condenser. The only difference is that in the central flow surface condenser the air pump is situated at the center of the system, unlike the downflow surface condenser. The exhaust steam enters from the top due to gravity.
What is a surface condenser?
A condenser is a unit that condenses steam to water at less pressure than atmospheric pressure. They are classified into 2 types, like based on their flow of direction and based on cooling action. A Surface condenser or non-mixing type is a sub-classification of a cooling action condenser.
What is a multi-flow condenser?
Two flow condenser is already discussed. By providing more and more partitions in the water boxes, surface condenser can be made multi flow condenser like, 4 flow, 6 flow etc. In multi-flow process, the rate of heat exchange is rapid but the power required to circulate the cooling water is also more.