Heavy water cooled and moderated type reactor (or) CANDU (Canadian Deuterium Uranium) Reactor: This type of reactor was designed and developed in Canada. In this reactor, heavy water (99.8% deuterium oxide D2O) is used as moderator and coolant as well as the neutron reflector. These reactors are more economical to those countries which do not
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A pressurised water reactor is a light water cooled and moderated reactor having an unusual core design using both natural and highly enriched fuel. The nuclear power plant using a prescribed water reactor is shown in fig. The main components of the reactor are: Reactor. Pressuriser Heat exchanger Coolant pump. The components of the secondary
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Fig shows a schematic diagram layout of nuclear power plant. In nuclear power plants, the reactor function is similar to the furnace of steam power plant. It contains pressure vessel, fuel rods, moderator, shielding as shown in fig. There are various types of reactors used in practice which will be discussed later. The fuel elements
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Micro-hydro, defined as a plant between 10kW and 200kW, is perhaps the most mature of the modern small-scale decentralised energy supply technologies used in developing countries. Micro hydro power plant is energy from water sources such as the ocean, rivers and waterfalls. “Micro-hydro” means which can apply to sites ranging from a tiny scheme to
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A method of maintaining the speed of the turbine is constant irrespective of variation of the load on the turbine known as governing of turbine. The governors regulate the rate of flow to the turbine in such a way that the speed of the turbine is maintained constant as far as possible under varying load
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Rotational speed of the turbine Specific speed Maximum efficiency Part load efficiency Head Type of water Runaway speed Cavitation Number of turbine units Overall cost. Rotational speed of the turbine Turbines are used to produce mechanical energy which is again converted into electrical energy by coupling the generator through the shaft. Here, the speed of
Factors to be Considered to Select the Right Type of Water Turbine Read More »
Water is the cheapest source of power. A hydro-electric power plant is aimed at harnessing from water flowing under pressure. In hydroelectric power plants, the energy of water are utilized to drive the turbine hydro or waterpower is important only next to the thermal power. Hydroelectric power was initiated in India in 1897 near Darjeeling.
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A dearearator is a device widely used for the removal of air and other dissolved gases from the feedwater to steam generating boilers. In particular, dissolved oxygen in boiler feed waters will cause a serious corrosion damage in steam systems by attaching to the walls of metal piping and other metallic equipment and forming oxides
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A boiler which generates steam at pressure greater than 80bar, a temperature of about 500°C, producing, steam more than 250 tons per hour called high pressure boilers. By using high pressure boilers, low grade fuels can be burned easily. High pressure boilers are water tube boilers and use pulverized coal firing. Examples of these boilers
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Why we go for Nuclear Power Plant? Availability of nuclear power plant developed by hydro electric power plants is tremendously affected by monsoon rain from year to year. Thermal power plants coal based- coal deposits are concentrated in central and eastern parts of India – coal transport becomes longer and costlier Steam, Diesel and Gas
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