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The present paper aims at analysing the performances of Organic Rankine Cycles (ORCs) adopted for the exploitation of the biomass resulting from the pruning residues in a 3000 hectares district in Southern Italy. A parametric energy analysis has been carried out to define the influence of the main plant operating conditions. To this purpose, both subcritical and transcritical power plants have been examined and saturated and superheated conditions at the turbine inlet have been imposed. Moreover, the effect of the working fluid, condensation temperature, and internal regeneration on system performances has been investigated. The results show that ORC plants represent an interesting and sustainable solution for decentralised and small-scale power production. Furthermore, the analysis highlights the significant impact of the maximum temperature and the noticeable effect of internal regeneration on the performances of the biomass power plants.
PAPER REVISED: 2014-03-06
PAPER ACCEPTED: 2014-03-13
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THERMAL SCIENCE YEAR 2015, VOLUME 19, ISSUE Issue 1, PAGES [193 - 205]
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