Exergetic and exergoeconomic analysis of a renewable polygeneration system and viability study for small isolated communities

摘要: Abstract A great interest has recently arisen for the sustainable supply of energy and fresh water, due to growing demand from developing countries. Facing this by traditional technologies implies evident risks related with high cost fossil fuels their environmental impact. Then, alternative solutions based on use renewable sources innovative must be considered. In paper a polygeneration system is examined, which includes solar field parabolic trough photovoltaic/thermal collectors, biomass heater, an absorption chiller Multiple Effect Distillation desalination unit. Plant operation under dynamic conditions been analysed in previous papers; exergetic exergoeconomic analysis carried out. The intended identify steps that mostly affect overall plant exergy efficiency, so as propose possible improvements. accounting aimed at assigning monetary value each or material flow, thus providing rational basis price assignment. Both analyses are applied integral values flows, comparing results obtained summer winter season. Finally, economic viability different context scenarios discussed.