Table of Contents
What is the difference between boiler and reactor?
The main difference between a BWR and PWR is that in a BWR, the reactor core heats water, which turns to steam and then drives a steam turbine. In a PWR, the reactor core heats water, which does not boil. This hot water then exchanges heat with a lower pressure water system, which turns to steam and drives the turbine.
What is the difference between steam generator and boiler?
Compared to steam boilers, steam generators have less steel built into their design, utilizing a single tube coil instead of many smaller diameter boiler tubes. A specialized feedwater pump is used to continuously pump the feedwater through the coil.
How is steam generated in a nuclear reactor?
The water in the core is heated by nuclear fission and then pumped into tubes inside a heat exchanger. Those tubes heat a separate water source to create steam. The steam then turns an electric generator to produce electricity. The core water cycles back to the reactor to be reheated and the process is repeated.
What is the role of steam in a nuclear power plant how it is generated?
The steam is used to spin large turbines that generate electricity. Nuclear power plants use heat produced during nuclear fission to heat water. The heat produced during nuclear fission in the reactor core is used to boil water into steam, which turns the blades of a steam turbine.
What is steam generation in boiler?
Steam generation in a pulverized coal-fired boiler is accomplished in a configuration of thermal-steam/water sections, which preheat and evaporate water, and superheat and reheat steam.
How is steam generated?
Steam is traditionally created by heating a boiler via burning coal and other fuels, but it is also possible to create steam with solar energy. Water vapor that includes water droplets is described as wet steam.
How does a boiler generate steam?
In a fire tube steam boiler, the tubes on the boiler are heated, and the water circulates around the tubes. The heat inside the tubes is produced by gases heated by coal or oil, and it is transferred by thermal conduction to the water to create steam. Fire tube steam boilers produce low pressure steam.
What is the difference between nuclear fission and nuclear fusion?
The main difference between these two processes is that fission is the splitting of an atom into two or more smaller ones while fusion is the fusing of two or more smaller atoms into a larger one.
What is steam generating unit?
Steam generating unit means any furnace, boiler, or other device used for combusting fuel and producing steam (nuclear steam generators are not included) plus any integrated equipment that provides electricity or useful thermal output to the affected EGU or auxiliary equipment.
What is a steam generator in a nuclear power plant?
Steam generators are heat exchangers used to convert feedwater into steam from heat produced in a nuclear reactor core. The steam produced drives the turbine. They are used in the most nuclear power plants, but there are many types according to the reactor type.
What is the difference between a steam boiler and steam generator?
An steam boiler consists of only the containing vessel and convection heating surfaces. It is used to convert water into steam at sub-critical pressures. Steam generator: An steam generator covers the whole unit encompassing water tubes, fire box, grate superheated, air heaters and economisers etc.
What is the difference between steam purity and steam quality?
•Steam purity is the condition of the steam in regards to the purity of the chemistry of the steam expressed as ppb (parts per billion) of TDS, sodium, cation conductivity or silica in the steam •Steam Quality is the condition of the steam in regards to the \% of moisture or boiler water carryover in the steam
What is the purpose of a steam boiler?
It is used to convert water into steam without boiling at sub-critical pressures . In most people idea , the steam boiler is same as steam generator, just because they are different sizes. A steam boiler is exactly what the name implies. The steam is made by the water reaching boiling point.