Efficiency of solar air turbine power stations with floating solar chimneys

Papageorgiou, CD

dc.contributor.author	Papageorgiou, CD	en
dc.date.accessioned	2014-03-01T02:49:45Z
dc.date.available	2014-03-01T02:49:45Z
dc.date.issued	2004	en
dc.identifier.issn	14827891	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/34724
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-11844279782&partnerID=40&md5=f8c1c87da0ec72ae1ebdca44db049fa9	en
dc.subject	Efficiency	en
dc.subject	Filoating solar chimneys	en
dc.subject	Power output	en
dc.subject	Solar air turbine power stations	en
dc.subject.other	Chimneys	en
dc.subject.other	Mathematical models	en
dc.subject.other	Pressure effects	en
dc.subject.other	Solar collectors	en
dc.subject.other	Turbines	en
dc.subject.other	Turbogenerators	en
dc.subject.other	Floating solar chimneys	en
dc.subject.other	Power output	en
dc.subject.other	Solar air turbine power stations	en
dc.subject.other	Thermodynamic cycles	en
dc.subject.other	Hydroelectric power plants	en
dc.title	Efficiency of solar air turbine power stations with floating solar chimneys	en
heal.type	conferenceItem	en
heal.identifier.secondary	448-104	en
heal.publicationDate	2004	en
heal.abstract	A solar turbine power station (STPS) has three major components: A cyclical solar collector A solar chimney in the center of the solar collector A set of air turbo generators near the entrance of the solar chimney The power output of a STPS is roughly proportional to the height of the solar chimney and the surface area of its solar collector. In order to increase the power output and the efficiency of a STPS with a given solar collector, we must increase the height of its solar chimney. This can be achieved using floating solar chimneys. The floating solar chimney (FSC) invented by the author, is a lighter than air construction, made by successive balloon rings, that are filled with He or NH3. This permits to the FSCs to float in the air and thus to have heights up to several Km with any appropriate internal diameter. In the present paper an extensive presentation of the power output and the efficiency of the STPSs with FSCs is given. As it is shown the power output and the efficiency of the STPS depend on the dimensions of the FSC and the solar collector on the loss coefficients of its FSC and on the environmental characteristics (solar irradiance, temperature and pressure). The efficiency of a STPS with a rated power output of 100 MW is between the ranges of 4.5% to 7% if its FSC heights are in the range of 3000 m to 4500 m.	en
heal.journalName	Series on Energy and Power Systems	en
dc.identifier.spage	127	en
dc.identifier.epage	134	en