High hotwell level will get the cooling water tubes of condenser submerged in the condensate hence cooling efect will be reduced consequentaly vacuum will drop.
Low hotwell level will lead to low suction pressure of Condensate Extraction Pump hence it may lead to cavitation.
CEP is a Multi stage vertical Centrifugal Pump having double suction impeller at 1st stage for higher efficiency and high flow rate .Pump operates at marginal difference between NASHa and NPSHr so pressure equalising line is provied at suction side .CEP suction is conected to Hotwell and above hotwell Vacuum is maintained as per turbine design. The purpose of CEP is transfer water to deaerator through LP heaters. Parag Agrawal 8102392375
condenser capacity(kw) = compressor cooling capacity (kw) + compressor input (kw) power condenser capacity(kw) = Pf + Pa
An air condenser takes in the surrounding air(at about 45-50 degree Celsius). The vapor at high pressure enters the condenser and accepts the latent heat of condensation from the hot airthereby rejecting heat to condensing coils. The vapor then becomes liquid.
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ac condenser means "Air Cooled Condenser". The cooling media is Air. The fluid or anything which is being circulated through (inside) the coils /tube being cooled by the exposed or forced air - which impinges over the outside of the coil / tubes. B.Kannan balakannan@live.com
For increasing steam turbine efficiency. if vacuum is not maintained then, uncondensable gases and air in condenser will increase the condenser pressure.
Dear Freind, If you are talking about hotwell in power plant application, then it is always recommended to use displacer or Radar type level transmitter. DP type LT is not recommended since it could malfunction in vacuume condition.
It is important to maintain a vacuum in a condenser if you want it to work well.
hotwell
The pinion knob on a microscope is used to adjust the focus by moving the stage up or down. The condenser level is used to adjust the height of the condenser lens to control the amount of light entering the specimen.
A hotwell in a thermal power plant is a reservoir or tank that collects condensate from the turbine exhaust steam and other feedwater sources. It helps in recovering and recycling the steam condensate to maintain efficient water circulation in the power plant's boiler system. The hotwell also serves as a storage tank to supply feedwater to the boiler as needed.
In a total condenser te temperature is lowerd to a level on which all gasses turn to liquids. with a partial condenser you can separate gasses on there dew point. It means that the temperature is set to a level on wich a one or several gasses leave the partial condenser as a liquid and the others as a gas.
The reason why it is called a barometric condenser is because it makes contact and it is a long vertical pipe into which it condensates and cools the liquid flow to accomplish the removal of pressure. It is also stated that when the pump is used the system is called a low level barometric condenser.
CEP is a Multi stage vertical Centrifugal Pump having double suction impeller at 1st stage for higher efficiency and high flow rate .Pump operates at marginal difference between NASHa and NPSHr so pressure equalising line is provied at suction side .CEP suction is conected to Hotwell and above hotwell Vacuum is maintained as per turbine design. The purpose of CEP is transfer water to deaerator through LP heaters. Parag Agrawal 8102392375
The proper pH level is 7.2-7.5
In the low pressure side of a steam turbine, the vacuum is maintained by the condensation of steam in the condenser. At high loads, the condenser may not satisify the demand, allowing steam to remain gaseous for a longer period of time. This can cause pressure to rise.
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