Since then, GEH’s BWR technology has evolved; each design more simplified than the previous. First of all there is a HUGE DIFFERENCE between molten coolant and solid fuel VS molten fuel which this question does not address. 2.The uranium is usually enriched to 2.5-3.5% U-2. [3] This increases the overall cost of the operation, but makes light water reactors cheaper to build. The reactor vessel and associated components operate at a substantially lower pressure (about 75 times atmospheric pressure) compared to a PWR (about 158 times atmospheric pressure). A boiling water reactor (BWR) is a type of light water nuclear reactor used for the generation of electrical power. Advantages and disadvantages of HWR (or) CANDU type Reactor . This process of slowing neutrons down is known as moderation, and the material that slows down these neutrons is known as a neutron moderator. 2.The uranium is usually enriched to 2.5-3.5% U-2 view the full answer It is fueled by the uranium-233 isotope that is taken from the element thorium. In other words, it contains "less fissile material than is required for them to go prompt critic… The major advantage of this reactor is that the fuel need not be enriched. In nuclear fission reactors, the neutrons must be slowed down to ensure an effective fission chain reaction occurs. 1.1 Introduction. (June 18, 2015). 1. Disadvantages-The disadvantages are that heavy water is expensive to make, representing about 20% of the capital cost of each reactor, and the reactor core size is larger Fast reactor fuels are usually 15 – 20% enriched. Liquid Fluoride Thorium Reactor (LFTR) is an innovative design for the thermal breeder reactor that has important potential benefits over the traditional reactor design. The reactors installed at Rajasthan Atomic Power Sta­tion, Madras Atomic Power Station and Narora Atomic Power Project are of pressurized water reactor type. 3. In addition, the core of the reactor contains less fissile material, decreasing the chances of additional fission events to occur, making the reactor safer and more controllable. Feedwater 8.High weight turbine 9.Low weight turbine 10.Generator 11.Exciter 12.Condenser 13.Cooling water 14.Preheater 15.Feedwater pump 16. Terms Their size and modularity offer many advantages. In the future the prices of a molten salt reactor and a light water reactor would be about the same to build, and given the high efficiency, LFTRs hold some advantages [9] You could use the otherwise waste heat to desalinate water and do many other useful tasks. A pressurized water reactor (PWR) is a type of power plant reactor consisting of two basic circuits having light water as the working fluid. (June 18, 2015). Each design has its own advantages and disadvantages. It is the second most common type of electricity-generating nuclear reactor after the pressurized water reactor (PWR), also a type of light water nuclear reactor. [4] As well, any increase in the temperature of the reactor causes the water to become less dense, reducing the level of moderation that the light water supplies and reducing the activity in the reactor. Heat developed per unit volume of core or per unit area of fuel surface is less. LFTR is fluoride based liquid fuel, that use the thorium dissolved in salt mixture of lithium fluoride and beryllium fluoride. With heavy water, ordinary natural fuel can be used but it is very expensive. Greater inherent safety. The boiling water reactor (BWR) is a type of light water nuclear reactor used for the generation of electrical power. The Light Water Graphite Reactor is like a combination of the Advanced Gas Cooled Reactor and the Steam Generating Heavy Water Reactors (Heavy Water Light Water Reactor). The simplest of these light water reactors is the boiling water reactor. The simplest of these light water reactors is the boiling water reactor. In one of the circuits water is heated to a high temperature and kept at high pressure as well, so that it does not get converted into a gaseous state. On the basis of coolant used the reactors may be classified as: (a) Gas (b) Water (c) Heavy water, and (d) Liquid metal reactors. Jordan Hanania, Kailyn Stenhouse, Jason DonevLast updated: June 4, 2018Get Citation. Fuel VS molten fuel which this question does not contain large amounts of deuterium, making it distinct heavy... 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