{"?xml":{"@version":"1.0"},"edm:RDF":{"@xmlns:dc":"http://purl.org/dc/elements/1.1/","@xmlns:edm":"http://www.europeana.eu/schemas/edm/","@xmlns:wgs84_pos":"http://www.w3.org/2003/01/geo/wgs84_pos","@xmlns:foaf":"http://xmlns.com/foaf/0.1/","@xmlns:rdaGr2":"http://rdvocab.info/ElementsGr2","@xmlns:oai":"http://www.openarchives.org/OAI/2.0/","@xmlns:owl":"http://www.w3.org/2002/07/owl#","@xmlns:rdf":"http://www.w3.org/1999/02/22-rdf-syntax-ns#","@xmlns:ore":"http://www.openarchives.org/ore/terms/","@xmlns:skos":"http://www.w3.org/2004/02/skos/core#","@xmlns:dcterms":"http://purl.org/dc/terms/","edm:WebResource":[{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-0BZM52MD/8878c820-448d-4f3a-b50f-450b60992f9b/HTML","dcterms:extent":"59 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-0BZM52MD/2a06acf2-e83a-4409-8b48-8ba8ba0bd273/PDF","dcterms:extent":"1035 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-0BZM52MD/8ed82fe7-d9ea-410d-957d-6ad5af061e4d/TEXT","dcterms:extent":"62 KB"}],"edm:TimeSpan":{"@rdf:about":"1999-2025","edm:begin":{"@xml:lang":"en","#text":"1999"},"edm:end":{"@xml:lang":"en","#text":"2025"}},"edm:ProvidedCHO":{"@rdf:about":"URN:NBN:SI:DOC-0BZM52MD","dcterms:isPartOf":[{"@rdf:resource":"https://www.dlib.si/details/URN:NBN:SI:spr-6QOUKQ9A"},{"@xml:lang":"sl","#text":"Strojniški vestnik"}],"dcterms:issued":"2004","dc:creator":"Oman, Janez","dc:format":[{"@xml:lang":"sl","#text":"16 strani"},{"@xml:lang":"sl","#text":"letnik:50"},{"@xml:lang":"sl","#text":"številka:9"},{"@xml:lang":"sl","#text":"str. 427-442"}],"dc:identifier":["ISSN:0039-2480","COBISSID:7696667","URN:URN:NBN:SI:doc-0BZM52MD"],"dc:language":["en","sl"],"dc:publisher":[{"@xml:lang":"sl","#text":"Association of Mechanical Engineers and Technicians of Slovenia et al."},{"@xml:lang":"sl","#text":"Zveza strojnih inženirjev in tehnikov Slovenije et al."}],"dc:subject":[{"@xml:lang":"sl","#text":"lastnosti optične"},{"@xml:lang":"sl","#text":"optične lastnosti"},{"@xml:lang":"sl","#text":"premog"},{"@xml:lang":"sl","#text":"premogi slovenski"},{"@xml:lang":"sl","#text":"sevanje sončno"},{"@xml:lang":"sl","#text":"uplinjanje premoga"},{"@rdf:resource":"http://www.wikidata.org/entity/Q24489"}],"dcterms:temporal":{"@rdf:resource":"1999-2025"},"dc:title":{"@xml:lang":"sl","#text":"Primernost optičnih lastnosti slovenskih premogov za uplinjanje s koncentriranim sončnim sevanjem| The radiative properties of Slovenian coals as an absorptive substance for gasification by concentrated solar radiation|"},"dc:description":[{"@xml:lang":"sl","#text":"In this paper the idea of coal gasification by concentrated solar radiation isdescribed. The calculations are performed on the basis of Miećs scattering theory for spheres of arbitrary sizes. Some aspects of the Mie calculations are discussed, a new criterion for the sufficient condition for the convergence of the amplitude functions is presented and a new efficiency factor for reflection is introduced. The optical properties of selected coals are determined on the basis of their chemical composition. The absorption and reflection properties of the coals and carbonaceous materials, such as carbon black, coke, anthracite and black coal, are determined. The results of the spectral properties calculations are extended to the global properties on thebasis of the spectral intensities of the solar radiation. The conditions for a high-efficiency process involving brown-coal gasification are defined bya determination of the most suitable sizes of brown coal particles for the particle-gas suspension"},{"@xml:lang":"sl","#text":"V prispevku je predstavljena zamisel o uplinjanju premoga s koncentriranim sončnim sevanjem. Izračuni so opravljeni na podlagi Mieove teorije sipanja elektromagnetnega valovanja z okroglimi delci poljubnih velikosti. Obravnavane so nekatere posebnosti računanja po Mieovi metodi, predstavljen je nov kriterij za zadostno konvergenco vrst pri računanju amplitudnih funkcij, predstavljen pa je tudi nov faktor učinkovitosti, s katerim je mogoče računati odbiti del vpadnega sevanja. Optične lastnosti delcev izbranih premogov, ki določajo zmoznosti absorbiranja in odbijanja sevanja, so izračunane po njihovi kemični sestavi. Lastnosti izbranih premogov so primerjane z lastnostmi drugih snovi iz ogljika, to so pirolitični ogljik, koks, antracit in črni premog. Izračunane vrednosti spektralnih količin so na podlagi standardiziranih spektralnih gostot sončnega sevanja preračunane v globalne vrednosti. Izbira primernih velikosti in snovi delcev temelji na količini odbitega in absorbiranega energijskega toka vpadnega sončnega sevanja. Določene so najbolj primerne velikosti delcev rjavega premoga za plinsko suspenzijo, pri katerih dosega postopek uplinjanja rjavega premoga s koncentriranim sončnim sevanjem velike izkoristke"}],"edm:type":"TEXT","dc:type":[{"@xml:lang":"sl","#text":"znanstveno časopisje"},{"@xml:lang":"en","#text":"journals"},{"@rdf:resource":"http://www.wikidata.org/entity/Q361785"}]},"ore:Aggregation":{"@rdf:about":"http://www.dlib.si/?URN=URN:NBN:SI:DOC-0BZM52MD","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:DOC-0BZM52MD"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:DOC-0BZM52MD/2a06acf2-e83a-4409-8b48-8ba8ba0bd273/PDF"},"edm:rights":{"@rdf:resource":"http://rightsstatements.org/vocab/InC/1.0/"},"edm:provider":"Slovenian National E-content Aggregator","edm:intermediateProvider":{"@xml:lang":"en","#text":"National and University Library of Slovenia"},"edm:dataProvider":{"@xml:lang":"sl","#text":"Univerza v Ljubljani, Fakulteta za strojništvo"},"edm:object":{"@rdf:resource":"http://www.dlib.si/streamdb/URN:NBN:SI:DOC-0BZM52MD/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:DOC-0BZM52MD"}}}}