Technical and economic comparison between PV-RO system and RO-Solar Rankine system. Case study: Thirasia island

dc.contributor.author	Manolakos, D	en
dc.contributor.author	Mohamed, ESh	en
dc.contributor.author	Karagiannis, I	en
dc.contributor.author	Papadakis, G	en
dc.date.accessioned	2014-06-06T06:48:45Z
dc.date.available	2014-06-06T06:48:45Z
dc.date.issued	2008	en
dc.identifier.issn	00119164	en
dc.identifier.uri	http://dx.doi.org/10.1016/j.desal.2007.01.066	en
dc.identifier.uri	http://62.217.125.90/xmlui/handle/123456789/4247
dc.subject	Autonomous desalination systems	en
dc.subject	Organic Rankine cycle	en
dc.subject	PV	en
dc.subject	RO desalination	en
dc.subject	Seawater	en
dc.subject	Solar collectors	en
dc.subject	Water cost	en
dc.subject.other	Costs	en
dc.subject.other	Desalination	en
dc.subject.other	Economic analysis	en
dc.subject.other	Rankine cycle	en
dc.subject.other	Seawater	en
dc.subject.other	Solar collectors	en
dc.subject.other	Autonomous desalination systems	en
dc.subject.other	Organic Rankine cycle	en
dc.subject.other	Rankine engine	en
dc.subject.other	Reverse osmosis desalination	en
dc.subject.other	Reverse osmosis	en
dc.subject.other	Costs	en
dc.subject.other	Desalination	en
dc.subject.other	Economic analysis	en
dc.subject.other	Rankine cycle	en
dc.subject.other	Reverse osmosis	en
dc.subject.other	Seawater	en
dc.subject.other	Solar collectors	en
dc.subject.other	desalination	en
dc.subject.other	design	en
dc.subject.other	economic analysis	en
dc.subject.other	estimation method	en
dc.subject.other	osmosis	en
dc.subject.other	salinity	en
dc.subject.other	seawater	en
dc.subject.other	solar power	en
dc.subject.other	water temperature	en
dc.subject.other	Cycladas	en
dc.subject.other	Eurasia	en
dc.subject.other	Europe	en
dc.subject.other	Greece	en
dc.subject.other	Southern Aegean	en
dc.subject.other	Southern Europe	en
dc.subject.other	Thirasia	en
dc.title	Technical and economic comparison between PV-RO system and RO-Solar Rankine system. Case study: Thirasia island	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.desal.2007.01.066	en
heal.publicationDate	2008	en
heal.abstract	This paper presents the technical characteristics as well as an economic comparison of two autonomous desalination systems. The first system concerns the laboratory experimental results of a direct coupled PV-SWRO desalination system without batteries equipped with a hydraulic energy recovery device of the Clark pump type. The PV system consists of 18 Arco-Solar monocristaline PV panels, with total peak power of 846 W. These panels are directly connected to a brushless DC motor of 510 W, powering a rotary vane pump as low pressure pump. The clark pump utilizes the high pressure brine to intensify the feed pressure to the RO desalination system. The desalination system has a capacity of 0.1 m3/h. The specific energy recovery of this system has been experimentally found to be in the range of 3.8-6 kWh/m3 depending on the feed water temperature and the feed water salinity. The second system is an organic solar Rankine system for RO desalination. The heat produced by the solar collectors' field is transformed to mechanical power through an organic Rankine cycle process. The shaft power produced drives the high pressure pump of the RO unit, initiating the desalination process. The prototype system consists of vacuum tube solar collectors 90 m2, a Rankine engine of 100 kW and an RO unit of 0.3 m3/h. The energy recovery system of the RO unit consists of a pair of axial piston pumps (APP) manufactured by Danfoss. One of them operates reversely, as turbine, exploiting the hydraulic energy of the brine stream. The aim of the economic analysis is not only to estimate the cost of each system but also to compare them on the same basis, in order to allow a meaningful comparison. Hence, each system cost is determined having utilised the same economic assumptions like interest, operating expenses, etc. Moreover, these desalination systems can provide sufficient amounts of potable water for the local needs of a small island, like Thirasia, (Cyclades, Greece) at a cost as low as 7.77 e{open}/m3, very close to that of water hauling. © 2008.	en
heal.journalName	Desalination	en
dc.identifier.issue	1-3	en
dc.identifier.volume	221	en
dc.identifier.doi	10.1016/j.desal.2007.01.066	en
dc.identifier.spage	37	en
dc.identifier.epage	46	en