A great interest has recently arisen for the sustainable supply of energy and fresh water, due to thegrowing demand from developing countries. Facing this demand by traditional technologies impliesevident risks related with the high cost of fossil fuels and their environmental impact. Then, alternativesolutions based on the use of renewable sources and innovative technologies must be considered. In thispaper a renewable polygeneration system is examined, which includes a solar field based on parabolictrough photovoltaic/thermal collectors, a biomass heater, an absorption chiller and a Multiple EffectDistillation desalination unit.Plant operation under dynamic conditions has been analysed in previous papers; in this paper anexergetic and exergoeconomic analysis is carried out. The exergetic analysis is intended to identify thesteps that mostly affect the overall plant exergy efficiency, so as to propose possible improvements. Theexergoeconomic cost accounting is aimed at assigning a monetary value to each energy or material flow,thus providing a rational basis for price assignment. Both the exergetic and exergoeconomic analyses areapplied to integral values of energy flows, comparing the results obtained in the summer and winterseason. Finally, economic viability of the system in different context scenarios is discussed.
|Numero di pagine||18|
|Volume||92, Part 3|
|Stato di pubblicazione||Published - 2015|
All Science Journal Classification (ASJC) codes