Deepakkumar Yadav
Central Tower Receiver Using Heliostat Mirrors In case of central tower receiver collector, the receiver is located at the top of the tower. The system is equivalent to a very large paraboloidal reflector. It has large number of mirrors spread over a large area on the ground to focus the reflected solar radiation on to … Read more
Non Focusing Type Concentrators As stated earlier, in these type of collectors the solar radiations are allowed to fall on the absorber after using reflection in the mirror. Commonly used non-focusing type concentrators we : Flat plate collector with plane reflector Compound parabolic concentrator (CPC) 1. Flat Plate Collector with Plane Reflector : It is … Read more
Focusing Type Concentrators Various types of focusing type concentrators are : Parabolic trough reflector. Mirror strip reflector. Fresnel lens collector. Paraboloid dish collector. 1. Parabolic Trough Reflector : This type is line focusing type collector. The cross-section of a parabolic through reflector is shown in Figure A. In this type of collector, the solar radiations … Read more
Combined Gas Turbine Cycle Power Plants The temperatures of gas turbine exhaust lies between the range of 400° C to 525° C with stygen content ranging from 15 to 18 % depending upon the air-fuel ratios used. Therefore, it spetsible to utilise the large heat content of the turbine exhaust effectively in a heat recovery … Read more
Concentrating Type Collectors Concentrating type of collectors are also known as focusing collectors. These type of collectors are used when the temperatures higher than 100° C are required. Therefore in these collectors, it is necessary to concentrate and collect the high intensity of solar radiations on the absorber surface. The collector system comprises of a … Read more
Types of Solar Concentrating Collectors The concentrating type of collectors can be broadly classified into following two categories 1. Focusing type or concentrating type collectors : In these type of collectors, the optical system focuses the solar radiations on to the absorber. These are further classified as : (a) Line focusing type concentrators. (b) Point … Read more
Comparison of Gas Turbine and I.C. Engines Sr. No. Gas turbine I.C. Engines 1. The weight of gas turbine per kW power developed is low since the working pressures are low required lighter construction. The weight of I.C. engine per kW power developed is high since the working pressures are high requiring heavy construction. 2. … Read more
Cogeneration Co-generation means the sequential conversion of energy of fuel into two or more forms. With regard to thermal power plants, the co-generation can be defined as the simultaneous generation and utilization of both power and heat. In a conventional power plant, the efficiency of power generation is about 35% and the remainder of 65% … Read more
Gas Turbine Power Plants Gas turbine power plants finds its application in aircraft, in the industries for driving various machines likes compressors, pumps and the mechanical equipment, transportation and for power generation both as base load and peak load plant. First central power plant based on gas turbine was built in 1977 thereafter tremendous development … Read more
Components and Accessories of a Gas Turbine Power Plant Components : The main components of a gas turbine power plant are compressor, combustor, gas turbine with auxiliary components as intercoolers and regenerators. Some of these are described below. 1. Combustion chamber (Combustor) : Various requirements of a combustion chamber are : Carryout complete combustion of … Read more