Operation of Gas Turbines The operation of gas turbine includes the starting and shut down. 1. Starting of gas turbine : The gas turbines are not self starting type. Because, in a gas turbine power plant, the air from surroundings needs to be inducted into the compressor to raise its pressure and the high temperature … Read more

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 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 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 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

Modified Gas Turbine Power Plant A modified gas turbine cycle may have in addition to above an intercooler, a regenerator and a reheater. Such a gas turbine power plant is shown in Figure. Such a system is used to improve the performance of the plant. A regenerator is used to heat the compressed air by … Read more

Schematic Diagram of a Simple Gas Turbine Power Plant A simple gas turbine power plant working on open cycle is shown in Figure main components of the gas turbine cycle are : A compressor mounted on the same shaft or coupled to turbine. A combustion chamber called combustor. A gas turbine Auxiliaries such as fuel … Read more

Gas Turbine Materials Requirement and Selection Gas turbine power plants are designed to achieve high output and efficiency. To achieve this objective, these plants have to operate at high temperatures. Unlike diesel power plants, the components of a gas turbine power plant are exposed continuously to these high temperatures. Apart from this the blades of … Read more