About the Book
This book consists of articles from Wikia. Pages: 94. Chapters: Power stations, Air preheater, Alternating current, BHEL, Haridwar, Bottom ash, Bundle conductor, Capacitance, Chimney, Condenser, Deaerator, Diesel, Direct current, Electrical conductivity, Electrical resistance, Electricity, Electric current, Electric power transmission, Electromotive force, Fossil fuel, Fossil fuel power plant, Frequency, Fuel oil, HVDC, Inductance, Inverter, Kinetic energy, Lead-acid battery, Mechanical work, Natural gas, Ohm, Power plant furnace, Rechargeable batteries, Rectifier, Submarine power cable, Switched-mode power supply, Thermal power station, Transformer, Uninterruptible power supply, Volt, Water, Watt, Wind farm, Alternator, Eductor-jet pump, Electric power transmission, Flue gas emissions from fossil fuel combustion, Gas turbine, HVDC, Metering pump, Methane, Power plant furnace, Rectifier, Slurry, Steam turbine, Stress corrosion cracking, Thermal power station, Transformer, Uninterruptible power supply, Valve, Wind farm. Excerpt: Airpreheater is a general term and represents any heater designed to heat air. It may be for residential use namely for room heating, house heating, etc. by means of gas, electricity or oil etc. In the present context reference is to the airpreheaters (Fossil_fuel_power_plant#Boiler_operation) used in steam generators (boilers) for generation of electricity in Power Generation Utilities. The purpose of the air preheater is to recover the heat from the flue gas(exhaust gases) from the boiler to improve boiler efficiency. Incidentally the gases are sent to the chimney or stack at lowered temperature so that the design of the ducting and the stack becomes simplified. Also it controls the temperature of gases coming out of the stack. The location of the rotating type air preheater in the Boiler/TG cycle is shown in the typical schematic diagram. For the use in Steam Generators (boilers)in Thermal_power_stations of Utility power stations, ther...