The Pressurize Water Reactor

* The Pr essurized Water Reactor (PWR) rough 60% of atomic reactors world-wide.  This reactor fiber uses ordinary light water as a moderator and also as the coolant. It has two separate coolant loops, unmatched to carry away heat from the reactor and the other to provide go to a turbine that drives an electrical generator. The primary loop (which is in closest devil through with the reactor core) is maintained under high pressure to go forward it from boiling.
* The Boiling Water Reactor (BWR) approximately 20% of reactors world-wide. This type also uses light water as a moderator and coolant, still has a single coolant loop in which the water is allowed to make believe boiling temperature and produce steam.
* The Pressurized Heavy Water Reactor (PHWR) approximately 11% of reactors world-wide. This type is predominantly based upon the CANDU reactor authentic in Canada. It uses heavy water as a moderator and coolant, and lifelike uranium fuel. Like the PWR it uses two separate coolant circuits, one to remove heat from the reactor and the other to provide steam to a turbine that drives an electrical generator. The primary loop cooling the reactor is maintained at high pressure to limit the come of boiling.
* Gas cooled reactors (GCR) A few reactors of this type have operated commercially, in the first place in the UK.



  These reactors use solid graphite as a moderator and gas (either carbon dioxide or helium) as the coolant removing heat from the nuclear fuel. The gas reactors in the UK are be phased out. However, as allow be discussed later, new gas reactors are either being developed or considered because they could provide high-temperature heat along with a wide range of potential process applications.
Table 2 summarizes the differences between these reactor types.

4.2.2 The development of nuclear power
Electricity times using nuclear power is a well establish technology, dating back more than 50 years to the first prototype commercial power plants in the UK and...If you want to get a full essay, order it on our website: Orderessay



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