panipat thermal power plant training

TRAINING PRESENTATIONonSubmitted by:PRIYANK GABAMechanical1209383

POWER GENERATIONStage I generator produces 117.8 MW by Unit I and 110 MW by Unit II.Stage II generator produces 110 MW by Unit III and 110 MW by Unit IVStage III generator produces 210 MW by Unit V.Stage IV generator produces 210 MW by Unit VI.Stage V generator produces 250 MW by Unit VII and 250 MV by Unit VIII.

MAIN COMPONENTS1. Coal conveyer2. Pulverizer3. Boiler4. Air- preheater5. Electrostatic precipitator6. Turbine7. Condenser8. Cooling Tower11. Transformer12. Generator13. High-voltage power lines

BASIC WORKING

PROCESSES OF RANKINE CYCLEPROCESS 1-2: pumping of feed water to the boiler from pressure.

PROCESS 2-3: conversion of feed water in to the steam at constant pressure equal to the boiler pressure P1.

PROCESS 3-4: reversible adiabatic expansion of steam in the turbine from boiler pressure P1 to back pressure Pb.

PROCESS 4-1: the wet vapour then enters a condenser where it is cooled at a constant pressure and temperature to become a saturated liquid.

BOILERUsed to convert water into stream for the purpose of producing electricity when the stream will pass through the turbines. Boilers used in Panipat Thermal Power Plant Is : Water Tube Boilers

TURBINE & GENERATOR (TG)In the plant, reaction turbine is used which converts the heat energy of the stream into kinetic energy. Then that energy is transferred to shaft connected to generator which rotates at 3000 rpm speed.

TURBINE BLADES

High Pressure (HP) Turbine

Intermediate Pressure (IP) Turbine

Low Pressure (LP) Turbine

SPECIFICATION OF TURBINEMake BHELCapacity110MWSpeed3000 rpmStages3(HP, IP,LP) Inlet Steam Pressure150 Kg/cm2.Inlet Steam Temperature535oC.Overall Length16.975m.Overall Width10.5m.

CONDENSERA device or unit used to condense a substance from its gaseous it its liquid state, typically by cooling it. the latent heat is given up by the substance, and will transfer to the condenser coolant.function of the condenser is to condense exhaust steam from the steam turbines by rejecting the heat of vaporization to the cooling water passing through the condenser.

COOLING SYSTEMClosed type cooling system is used.

The waste energy that is rejected by the turbine is transferred to the cooling water system via the condenser. The waste heat in the cooling water is then discharged to the atmosphere by the cooling tower.

COOLING TOWERA structure of height 110m designed to cool the water by natural draught.The cross sectional area is less at the center just to create low pressure .The air can lift up due to natural draught and can carry heat from spherical drops.

FEED WATER HEATERS A feed water heater is a power plant component used to pre-heat water delivered to a steam generating boiler.

Energy used to heat the feed water is usually derived from steam extracted between the stages of the steam turbine.

Therefore, the steam that would be used to perform expansion work in the turbine (and therefore generate power) is not utilized for that purpose. Feed water heater increases thermal efficiency but decreases turbine power output.

ELECROSTATIC PRECIPITATOR Utilizes an intense electric force to separate the suspended particle from the flue gases.The electrostatic precipitator utilizes electrostatic forces to separate dust particles from the gases to be cleaned.

Various processes involved are:Corona GenerationParticle ChargingParticle CollectionParticle Removal

FAILURE OF PLANT (TRIPPING)DISTRIBUTIONWhen a certain distribution unit extract more power than allotted to it. There is shortage of frequency in grid resulting in shortage of power required to run even power plants.POWER PLANTS

RESTARTING OPERATIONHydraulic Plants initiate power generation.warming up a turning gear is engaged when there is no steam to the turbine to slowly rotate the turbine to ensure even heating to prevent uneven expansion.first to the astern blades then to the ahead blades slowly rotating the turbine at 1015RPM (0.170.25Hz) to slowly warm the turbine.Power supplied to emergency services.Normal power distribution.