NUCLEAR POWER PLANT IN MALAYALAM скачать в хорошем качестве

NUCLEAR POWER PLANT IN MALAYALAM

Nuclear Power Plants In Nuclear power station, nuclear energy is converted into electrical energy, The main atomic fuels used are Uranium and Thorium. These are subjected to nuclear fission in a special apparatus known as reactor. The heat energy thus released is utilized in raising steam at high temperature and pressure. The steam runs the steam turbine which convents steam energy into mechanical energy. The turbine drives the alternator which converts mechanical energy into electrical energy. The heat energy produced in breaking of atoms of Uranium by fission process in an atomic reactor is extracted by pumping fluid or molten metal like liquid sodium or gas through the pile. The heated metal or gas is then allowed to exchange its heat to the heat exchanger by circulation. The steam produced in the heat exchanger is utilized to drive the turbine. The turnbine drives the alternator, which converts mechanical energy into electrical energy. The output from the alternator is delivered to the bus bars through transformer, circuit breakers and isolators. Advantages 1. The amount of fuel required is quite small, therefore, there is no problem of transportation, storage etc. 2. These plants need less area as compared to any other type. 3. These plants can be located near the load centers, therefore, primary distribution cost is reduced. 4. These plants are most economical in large capacity. 5. There are large deposits of nuclear fuels available all over the world. Therefore such plants can ensure continued supply of electrical energy for thousands of years. Disadvantages 1. The initial capital cost is very high as compared to other types of power plants. technical 2. The erection and commissioning of the plant requires greater knowledge. 3. The fission by products are generally radio-active and may cause amount of radio-active pollution. 4. The fuel used is expensive a dangerous 5. The disposal of the products, which are radio-active, is a big problem.