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Perspectives of RDF use in Decentralized Areas: Comparing Power and Cogeneration Solutions
No full textPresent EU trends strive to maximize the resources recovery from municipal solid waste thus minimizing
the waste amount to be disposed off. Refuse-derived fuel (RDF) production is considered in some countries
to be a priority solution even if current market scenarios and consumers scepticism at present limit its
widespread utilization. In this work, a comparison has been carried out of two possible RDF utilization
alternatives, with particular reference to territorial districts with low population density. After a brief
introduction, in which current RDF combustion technologies are illustrated, two possible plant configurations
are considered, one concerning only electric power production; the other one combined heat and
power production (CHP), using heat for district heating purposes, resorting to two different architectures:
single pass-out condensing turbine and back-pressure turbine. Possible application of these technologies to
a case study is then proposed, referring to a central Italy mountain territory characterized by a low population
density. Then, an economic evaluation has been carried out. Finally, a parametric study was
performed in order to define acceptable values for the sale price of thermal energy and the effect on
profitability of the incremental investment needed for the construction of a district heating network
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