Abstract
In the Modern scenario, the naturally available resources for power generation are being depleted at an alarming rate; firstly due to wastage of power at consumer end, secondly due to inefficiency of various power system components. A Combined Cycle Gas Turbine (CCGT) integrates two cycles- Brayton cycle (Gas Turbine) and Rankine cycle (Steam Turbine) with the objective of increasing overall plant efficiency. This is accomplished by utilising the exhaust of Gas Turbine through a waste-heat recovery boiler to run a Steam Turbine. The efficiency of a gas turbine which ranges from 28% to 33% can hence be raised to about 60% by recovering some of the low grade thermal energy from the exhaust gas for steam turbine process. This paper is a study for the modelling of CCGT and comparing it with actual operational data. The performance model for CCGT plant was developed in MATLAB/Simulink.
Highlights
With the advent of technological advancement, the dependency of human race on electricity has increased manifolds and keeping in mind the uncontrollable power requirement in almost every minute human activity methods are being taken up to exploit the present natural resources like coal, solar etc
A Cycle Gas Turbine (CCGT) is one such advancement in the field of power generation. It consists of two units (a) the steam turbine unit and (b) the gas turbine unit
The value of n is determined with the help of blocks representing the net energy supplied to the gas turbine Eg andthe energy collected by the heat recovery boiler and steam turbine Es
Summary
With the advent of technological advancement, the dependency of human race on electricity has increased manifolds and keeping in mind the uncontrollable power requirement in almost every minute human activity methods are being taken up to exploit the present natural resources like coal, solar etc. The plant consists of a compressor, combustor, gas turbine, waste heat recovery boiler, steam turbine, and generator(s).
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