Enel - Visita alle Centrali


	Combined cycle

	Heat engine
	Turbine
	Alternator
	Transformer
	Pump
	Condenser
	Catalyzer
	Dust collector

Fumes outlet Ashes' hoppers	Fumes inlet Uptake section
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The operation is based on the principle of attraction between bodies with electrical charge of opposite sign. The precipitators consist of a set of thread-like elements and plates, arranged vertically in the smoke duct and held in tension by a system of DC power in order to have an ionized electric field inside the duct. Thread-like electrodes have the task of negatively charging solid particles of smoke, which will then be attracted by positively charged plates. Systems of vibrators and shakers of the plates provide, at regular intervals, the dropping of soot in the underlying hoppers.

Over 60% of the electricity produced worldwide comes from burning fossil fuels: coil, fuel-oil and gas. And this percentace is bound to increase, reaching 68% by 2010 according to estimates of the International Energy Agency (IEA). Even in Europe, where nuclear production is widely implemented, the share of conventional thermoelectric generation surpasses half the total. In Italy, in 1999 the thermoelectric component (209 TWh) represented almost 80% of the total gross production. Taking into account the facilities' capacity, still in 1999, in Italy, conventional thermal power plants had a total net power of 52,584 MW, representing 71% of the total, a percentage similar to the one recorded in the World.)