PowerPoint Presentation

JAISALMER, RAJASTHANSaurabh Tiwari

RGTPPGAS POWER PLANT

Introduction.Gas turbine.Working Principle.Stages Of Operations.Start-up And Applications of Gas Turbines.Combined Cycle Process.Waste heat recovery boiler(WHRB).Steam turbine.Advantages & Disadvantages

TOPICS TO BE COVERED

IntroductionRamgarh gas thermal power station is the first gas thermal power plant of Rajasthan.

Power station houses the GAIL terminal for the supply of gas fuel. ONGC, OIL and Focus Energy Ltd. are among the gas suppliers.

It has a staff of more than 200engineers and technical workers.

GAS TURBINE

A turbine driven by expanding hot gases produced by burning fuel, as in a jet engine.

Working PrincipleInstead of using the heat to produce steam, as in steam turbines, gas turbines use the hot gases directly to turn the turbine blades.

Gas turbines have three main parts:Air compressor ii) Combustion chamberiii) Turbine

Simplified Prototype Of Gas Turbine

Stages Of Operations

Air is compressed(squeezed) to high pressure by a compressor.

Then fuel and compressed air are mixed in a combustion chamber and ignited.

Hot gases are given off, which spin the turbine wheels.

Layout Of Gas Turbine

Waste Heat Recovery Steam Generator

Advantages Of Gas Turbine

Less Maintenance Cost.It is simple in construction. There is no need for boiler, condenser and other accessories as in the case of steam power plants.Cheaper fuel such as kerosene , paraffin and benzene can be used which are cheaper than petrol and diesel.Gas turbine plants can be used in water scarcity areas.

Disadvantages Of Gas TurbineLow thermal efficiency due to the fact that 66% of the power being generated is utilized in driving the compressor!

The running speed of gas turbine is in the range of (40,000 to 100,000 rpm) and the operating temperature is as high as 1100 12600C. For this reason special metals and alloys have to be used for the various parts of the turbine.

Applications Of Gas TurbinesGas turbines are used to drive pumps, compressors and high speed cars.

Used in aircraft and ships for their propulsion. They are not suitable for automobiles because of their very high speeds.

Thank You

Ahh, Those turbines were like Poetry in motion.