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A power plant of the conventional steam turbine/generator type, whether using fossil fuel or a nuclear reactor, operates by pumping feedwater at high pressure into the steam raising units, the steam is admitted to the turbine which has various stages. At the high pressure end the rotor blades are short but they get progressively longer as you go down the machine, because the steam is expanding to a lower pressure so has a greater volume. At the back end where the steam comes out of the turbine, you will get maximum power and hence maximum efficiency of the plant by having a vacuum, so that steam below 100 degC is still doing useful work. Hence the condenser cooled by ambient temperature water from an outside source, where the below atmospheric pressure steam is condensed to water and returned to the feed pump inlets. So you may see the condenser as wasting heat, but in fact it considerably increases the overall efficiency. This steam/water cycle is called the Rankine Cycle and you will find an article on this in Wikipedia.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoThe condenser is another name for a capacitor. You can use a capacitor for various purposes, such as DC blocking, filtering, coupling, de-coupling, power supplies, etc.
The equation of a capacitor is ...
dv/dt = i/C
... meaning that the rate of change of voltage in volts per second is proportional to current in amperes and inversely proportional to capacitance in farads.
In simple terms, the capacitor is a stored energy device that resists a change in voltage.
Wiki User
∙ 11y agoCondenser is used in a power plant to condense steam coming out of the turbine.The main functions are:
1.To provide path to steam from high pressure to vacuum.
2.To increase efficiency of turbine by providing more enthalpy drop by lowering pressure.
Wiki User
∙ 12y agoeconamiser is used in power plants to increases the pre heating of the feed water which is flow to the boiler
Wiki User
∙ 11y agoWtaer is heated to steam, which expands and spins turbines. The steam is then cooled in the condenser, changing back to liquid water. This water is returned to be heated again into steam.
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How boilers are classified?
A high pressure steam boiler is boiler in which steam is generated at pressure exceeding 15 psig and operates hot water boiler above 160 psig or 250o F. Application this type usually is used for utility plants, big industrial plants and process application. A high pressure steam boiler can be named as Power Boiler, in which design and construction rule following to rules of ASME Boiler and Pressure Vessel Code Section I - Power Boiler.
Why steam is to be condensed in thermal power plant Y should not you use a compressor to suck compress and send back the steam at high pressure?
It's a matter of the steam cycle, the condenser in a condensing power plant creates a vacuum, or low pressure zone for the steam to flow into. A compressor would need to compress this steam 650 times plus generate enough force to force it back into the boiler, this would require a lot of energy to do. It is much simpler and much more cost effective (energy wise), to condense the steam and exhaust the excess heat to the cooling tower. The condensed water can then be pumped back to the boiler in stages to repeat the cycle. In these stages the water is de-aerated, treated and heated back to the boiler's temperature to prevent thermal shock in the boiler. In short condensing the steam is easier, safer and cheaper than trying to mechanically compress it. **By the way, there are vacuum pumps called "hoggers" or steam powered ejectors, and injectors which could do just what you suggest, but use exorbitant amounts of energy to do so. These are typically used in conjunction with condensers to eject non-condensible gasses from condensers.
Who invented the steam boiler furnace?
Granville T. Woods invented the Steam Boiler Furnace
What is boiler?
boilers which are used in ships called as marine boliers.
In order for a high temperature boiler or steam engine to produce superheated steam?
In order for a high temperature boiler or steam engine to produce superheated water, or steam?
Will the steam power plant works without condenser?
no
Does combined cycle power plant has a boiler?
No It has heat recovery steam generator
How is boiler works on power plant?
it make high pressure steam to be sent to the turbines.
How does steam condenser work?
the work of the condensor is to condense the hot steam and change its state so that it can be used again in boiler
What is the use of vacuum pump in thermal power plant?
A vacuum pump is used to expel air and non-condensible gases from the condenser in order to allow it to continue accepting steam (the collapse of which produces the vacuum in a condenser). If the vacuum pump fails, it will take from seconds to a few minutes before enough non-condensible gases build up in the condenser to stop the flow of steam. The non-condensible gases come from the boiler feedwater supply, despite the fact that boiler water is treated to prevent this. The minute amount of air in the water is carried with the steam into the turbine then the condenser where it will concentrate unless removed by the vacuum pump.
Why you use cooling towers in thermal power station?
This is to cool the steam turbine condenser, where the steam outlet from the turbine's last stage is condensed before returning to the boiler feed pump inlets. The cooling towers circulate water that passes through tubes inside the condenser, separate from the steam/water in the boilers.
What are the advantages and disadvantages of condenser?
A condenser is a device which condenses the steam at the exhaust of turbine. Condensers are classified in to two types.Such as (1) Jet condenser (2) Surface condenser It serves important functions. Such as 1. The condenser enables the recovery and recirculation of pure feed water into the plant. Thus, (i)The cost of water softening plant is reduced and (ii) It also saves the cost of fresh water to be supplied to the boiler.
In a nuclear power plant what is used to change water into steam?
Heat from the nuclear reaction changes water to steam.
What is dearater in power plant?
It removes the gases present in the steam,given by heaters.dearater is necessary otherwise the gases in steam will corrode the boiler and also affect the turbine.
What does a condenser in a coal-burning power plant do?
A condenser cools the steam from the turbine exhaust so it can be converted back to liquid water. This allows it to be used over and over again.
Is steam reversible?
Yes. Steam is produced in a steam generator (boiler), used to power an engine (or turbine), condensed, and returned to the boiler as feedwater.
What is dearater in thermal power plant?
It removes the gases present in the steam,given by heaters.dearater is necessary otherwise the gases in steam will corrode the boiler and also affect the turbine.
