Types of Solar Concentrating Collectors

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

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

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 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 Gas Turbine Power Plant

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

Fuels for Gas Turbine Power Plants

Fuels for Gas Turbine Power Plants Important properties of the fuel needed for gas turbine application are volatility, high calorific value, self lubrication property and its availability at low cost having no suspended impurities. Volatility of fuel should be such that it provides case of starting at low temperatures and burn with high combustion efficiency. … Read more

Selection of Site for Gas Turbine Power Plants

Selection of Site for Gas Turbine Power Plants Following points are considered for selection of site for gas turbine plants : Load centre : It should be located near the C.G. of loads to reduce transmission costs and the transmission losses. Availability of labour. Site should be away from localities since it is noisy in … Read more

Advantages and Disadvantages of Gas Turbine Power Plants

Advantages and Disadvantages of Gas Turbine Power Plants Advantages of Gas Turbine Power Plants : It is simple in construction. It is essentially, vibration fee being a rotary machine and having the continuous combustion. It runs at high speed thus it is smaller in size and has low weight to power ratio. Can use any type … Read more

Closed Cycle Gas Turbine Power Plant

Closed Cycle Gas Turbine Power Plant Schematic diagram of a simple closed cycle gas turbine power plant is shown in Figure. In this system the heat energy to compressed air is indirectly supplied in a heat exchanger called source. The heat energy of turbine exhaust gases is rejected in a heat exchanger called sink before … Read more