AN OVERVIEW OF STEAMPOWER PLANTSubmitted by:DEEPAK KUMAR DASSUBMITTED TO:DR. ABHIMANYU MAHAPATRADR. RANJAN KUMAR JENA
INTRODUCTION:In this powerplant coal fossilfuel are used as fuel,from the combustion heatProduced this heat is utilised in boiler to increase the pressure and temperetureOf water which then fed to the turbine when the turbine rotates rotatingThe turbine shaft then electricity generatedTWO TYPE:1-CAPTIVE PP2-CETRAL PPCE-TE-ME-EEAgain steam pp are two type1-condensing type2-non condensing type
Eficiency of power plant:1-THERMAL EFFICIENCY2-ELETRICAL EFFICIENCY3-OVER ALL EFFICIENCYMERITS:.Fuel used cheaper.cheaper initial cost.such plants can existed irrespective of existance of fuel.can be located at load centersDEMERITS:.High mentainance and operating cost.polluting environ ment.huge requirment of water.handling of coal disposal and assIs quite difficult
The most important constituents of a steam powerstation are:a. Steam generating equipmentb. Condenserc. Prime moverd. Cooling towerse. Electrical equipmentSteam generating equipment includes:• Boiler• Boiler furnace• Superheater• Economiser• Air Pre-heater
Introduction:• Particulate Collection Device used in industries to minimize air pollution• Principle of operation Electrostatic attraction• Efficiency of 99% in many industries• Can handle large gas volumes with a wide range of inlet temperatures, pressures, dust volumes, and acid gas conditions• Can collect particles of varying sizes in dry and wet states
Theory of Precipitation: Theory of PrecipitationCharging, Collecting & Rapping Particle charging Discharge & Collection Electrodes Corona Discharge Avalanche Multiplication Ionization of gas molecules Particle Charging Mechanism Field charging, Diffusion charging, Electron charging Particle Collection Particle Removal
Ionization of Gas Molecules Particle Charging Field charging, Diffusion charging, Electron charging
Particle collection Particle Removal by rapping
Conclusion All ESPs, no matter how they are grouped, have similar components and operate by charging particles or liquid aerosols, collecting them, and finally removing them from the ESP before ultimate disposal in a landfill or reuse in the industrial process The precipitator should be designed to provide easy access to strategic points of the collector for internal inspection of electrode alignment, for maintenance, and for cleaning electrodes, hoppers, and connecting flues during outages
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