{"?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-N48K7I89/66a5a6c0-a3e9-478a-925f-8ff878f14d20/PDF","dcterms:extent":"2296 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:doc-N48K7I89/1fe8a8b9-2815-4c81-8260-b5578b8e59d0/TEXT","dcterms:extent":"36 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-N48K7I89","edm:isNextInSequence":{"@rdf:resource":"https://www.dlib.si/details/URN:NBN:SI:doc-6F110GT4"},"dcterms:isPartOf":[{"@rdf:resource":"https://www.dlib.si/details/URN:NBN:SI:spr-6QOUKQ9A"},{"@xml:lang":"sl","#text":"Strojniški vestnik"}],"dcterms:issued":"2015","dc:creator":["Biswas, Mrinmoy","Raut, Rohit","Singh, Om Prakash","Singh, Ramji"],"dc:format":[{"@xml:lang":"sl","#text":"številka:10"},{"@xml:lang":"sl","#text":"letnik:61"},{"@xml:lang":"sl","#text":"str. 561-570, SI 104"}],"dc:identifier":["ISSN:0039-2480","COBISSID:14257179","URN:URN:NBN:SI:doc-N48K7I89"],"dc:language":"en","dc:publisher":{"@xml:lang":"sl","#text":"Zveza strojnih inženirjev in tehnikov Slovenije et al."},"dc:subject":[{"@xml:lang":"sl","#text":"dinamični zračniki"},{"@xml:lang":"sl","#text":"klimatizacija"},{"@xml:lang":"sl","#text":"prezračevanje"},{"@xml:lang":"sl","#text":"računalniška dinamika fluidov"},{"@xml:lang":"sl","#text":"temperatura zraka v kabini"},{"@xml:lang":"sl","#text":"toplotno ugodje"}],"dcterms:temporal":{"@rdf:resource":"1999-2025"},"dc:title":{"@xml:lang":"sl","#text":"Effect of dynamic vents on the thermal comfort of a passenger car|"},"dc:description":[{"@xml:lang":"sl","#text":"When a vehicle is parked under the direct sun, heat flux entering the cabin through the roof top becomes higher and thus, sets up high temperature gradients beneath the roof. Dynamic airvents are provided to cool the cabin when the air-conditioner is switched on. Unfortunately, the car manufacturer does not specify any guidelines for the driver/passengers regarding the use of dynamic airvents in cars. This study aims to investigate the effect of dynamic vents on the cabin temperature when cooling is initiated. Computational fluid dynamics (CFD) analysis was performed in three stages. In the first stage, temperature data were measured experimentally at various locations in the car and at different times of the day. In the second stage, a 3D CAD model of the same car was generated by measuring the design data. In third stage, a CFD model of the car was developed and used to validate the experimental data. Simulations were performed to study the effect of dynamic vents. The results shows that faster cooling of the cabin and maintaining a uniform temperature distribution inside the cabin is possible at a particular vent angle, which the manufacturer does not specify or indicate for the vehicle. These results suggest an energy saving potential without any changes in the air-conditioning unit itself"},{"@xml:lang":"sl","#text":"V članku so predstavljani rezultati raziskav, ki se nanašajo na zmanjševanje hrupa izpušnih sistemov motorjev z notranjim zgorevanjem in prezračevalnih sistemov. Raziskave so rezultat reševanja realnega problema pojava akustičnih resonanc v izpušnih sistemih. Akustične resonance se najpogosteje duši z vgradnjo konvencionalnih reaktivnih glušnikov, ki delujejo dobro pri danih obratovalnih razmerah in pri izbrani resonančni frekvenci, vendar ko se obratovalni pogoji spremenijo se spremeni tud resonančna frekvenca in delovanje reaktivnega glušnika ni več učinkovito. Praksa uglaševanja konvencionalnih reaktivnih glušnikov na resonančno frekvenco se je doslej izvajala s krmiljenjem posameznega parametra glušnika, npr. volumna, dolžine ali togosti aktivnega elementa. Vse dosedanje rešitve adaptivnih reaktivnih glušnikov so prostorsko potratne, elektromehansko zahtevne in so povezane s povečanjem mase glušnika"}],"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-N48K7I89","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:doc-N48K7I89"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:doc-N48K7I89/66a5a6c0-a3e9-478a-925f-8ff878f14d20/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-N48K7I89/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:doc-N48K7I89"}}}}