Fission and Chain Reaction in Nuclear On December 2, 1942 the first artificial nuclear chain reaction was produced by a team scientists led by Italian Physicist Enrico Fermi.  When a slow neutron is bombarded on nucleus of 92235U, it is absorbed by the 92235U nucleus are 92235U compound nucleus is formed. Then nucleus splits into two elements of lower mass number … Read more

Primary, Secondary and Supplementary Sources of Energy The energy sources available in the world can be divided into the following categories :  (a) Primary energy sources.   (b) Secondary energy sources.   (c) Supplementary sources. (a) Primary energy sources : These are the energy sources which provide a net supply of energy. Coal, oil, gas, … Read more

Diesel Electric Plant Main Components : The essential components of a diesel electric power plant are as follows : Engine. Engine fuel system. Engine air intake system. Engine exhaust system. Engine cooling system. Engine lubrication system. Engine starting system. A.C. or D.C. generator. Figure represents the schematic arrangement for the diesel power plant. We will … Read more

Advantages of Interconnected Power Plants Q. State any four advantages of interconnected power plants. Following are the major advantages of interconnecting various power stations and systems : (a) Increased reliability of supply : If one of the power plants to supply the load due to fault etc, then the system can be fed from the … Read more

Definitions of Term and Their Significance in Capacity of Hydro Power Plant 1. Hydrology : System related with water in termed as hydrology. It relates with mass of water, head of water, flow of water (Quantity). From the above data the work that water can do can be calculated, which can be utilized to decide … Read more

Types of Turbines used in Hydro Electrical Power Plant The turbines used in hydro electric power plants as prime movers of alternator can be classified in following ways :    (a) According to the type of flow of water.    (b) According to the action on fluid. (a) According to the type of flow of water, … Read more

Comparison Between Different Types of Hydro Power Plant Turbines The following table gives the comparison of different types, as regard with its type, head required for operation and specific speeds at which they can operate. Sr. No. Types of Turbine Classification Head, meters Specific speed, r.p.m. 1. 2. 3. Pelton wheel Francis Kaplan Impulse Reaction … Read more

Selection of a Site For Hydro Power Plant Following are the factors to be taken into account at the time of selecting a site for hydro power project : Ample quantity of water at a reasonable head should be continuously available as far as possible throughout the year. The site should be such that it … Read more

Classification According to the Quantity of Water Available Plants are classified as follows according to the quantity of water available :  Run off river plants without pondage Run off river plants with pondage. Reservoir plants. 1. Run off river plants without pondage In this type of hydro-electric plant, water from the river is not stored … Read more

Control Through Flow of Coolant Reactor coolant is used for continuously removing heat developed in the reactor core for generating steam in the exchanger. The coolant used must be fluid at operating temperature of the reactor, having high thermal conductivity in order to achieve maximum heat transfer. Further the coolant must be stable from stand … Read more