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manuela palacio

on 21 April 2010

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Transcript of COGENERATION

COGENERATION * What is it? Is the use of a heat engine or a power
station to simultaneously generate ELECTRICITY USEFUL HEAT Caracteristics- " The PERFECT transformation " high efficiency
of energy production significant fuel savings
as compared to separate
production electricity and heat generated in cogeneration can be used for consumption
prepare hot water
heat building
technological heating

Save major part of energy, purchase costs for its uses and earn money(saving electricity). fuel consumption is reduced. thermodinamically
efficient use of fuel energy recycling! Thermal power plants (including those that use fissile elements or burn coal, petroleum, or natural gas), and heat engines in general, do not convert all of their thermal energy into electricity. In most heat engines, a bit more than half is lost as excess heat. By capturing the excess heat, CHP uses heat that would be wasted in a conventional power plant. Potentially reaching an efficiency of up to 89%, compared with 55%[5] for the best conventional plants. This means that less fuel needs to be consumed to produce the same amount of useful energy. Typically for gas engined plant, the fully installed cost per kW electrical, is around £400/kW, which is comparable with large central power stations. Aleternative sources
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