Nuclear Reactors | Components and Types of Nuclear reactors | Explained in Tamil | Power Plant Engg. скачать в хорошем качестве

Nuclear Reactors | Components and Types of Nuclear reactors | Explained in Tamil | Power Plant Engg.

This video will give you information about Nuclear Reactor and its types  A nuclear reactor produces and controls the release of energy from splitting the atoms of certain elements.  The energy released is used as heat to make steam to generate electricity.  The energy released from continuous fission of the atoms of the fuel is harnessed as heat in either a gas or water, and is used to produce steam.  The steam is used to drive the turbines which produce electricity Fuel  Uranium is the basic fuel.  Usually pellets of uranium oxide (UO2) are arranged in tubes to form fuel rods.  The rods are arranged into fuel assemblies in the reactor core. Moderator. Material in the core which slows down the neutrons released from fission so that they cause more fission. It is usually water, but may be heavy water or graphite. Control rods. These are made with neutron-absorbing material such as cadmium, hafnium or boron, and are inserted or withdrawn from the core to control the rate of reaction, or to halt it Coolant.  A fluid circulating through the core so as to transfer the heat from it.  In light water reactors the water moderator functions also as primary coolant.  Except in BWRs, there is secondary coolant circuit where the water becomes steam. 1. Pressurized Water Reactor (PWR) 2.Boiling Water Reactor (BWR) 3.Heavy Water Reactor (HWR) 4.Gas Cooled Reactors (GCR) 5. Thorium high temperature reactor (THTR) 6.RBMK 7. Fast breeder reactors