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The latitude dependent irradiation distribution in Europe and its implication for the design of stationary concentrators
Högskolan Dalarna, Akademin Industri och samhälle, Miljöteknik.
1998 (engelsk)Inngår i: Eurosun 1998, Portoroz, Slovenia, 1998Konferansepaper, Publicerat paper (Annet vitenskapelig) Published
Abstract [en]

When a stationary solar concentrator is designed, the spatial distribution of the available irradiation is of vital interest. An irradiation distribution based only on solar geometry will look similar at different sites. The only difference is that the distribution of the incident irradiation is shifted to lower solar altitudes when latitude is increased. However, real irradiation distribution will show strong asymmetry at high latitude sites, since the winter irradiation is reduced by absorption and scattering in the atmosphere, and by seasonal changes in the climate. The reduced winter irradiation at high latitudes implies that the available annual radiation is concentrated to a narrower angular interval. This means that the degree of concentration that is possible increases with latitude. In the paper examples of irradiation distribution from different sites in Europe from latitude 38°N to 65°N are shown. The origin of the reduced winter irradiation with increased latitude is discussed, and numerical examples on the performance of different types of stationary concentrators for different latitudes are given.

sted, utgiver, år, opplag, sider
Portoroz, Slovenia, 1998.
Identifikatorer
URN: urn:nbn:se:du-2140OAI: oai:dalea.du.se:2140DiVA, id: diva2:521624
Konferanse
Eurosun 1998 , Portoroz, Slovenia, 1998
Tilgjengelig fra: 2006-05-29 Laget: 2006-05-29 Sist oppdatert: 2012-04-24bibliografisk kontrollert

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