1. An approach to the safety problem of railway-road crossings in the transport systemAndrej Godec, 2003, kratki znanstveni prispevek Opis: The paper presents an approach to the problem of railway-road level crossings. The goal is to improve safety in the transport system network, which includes a considerable number of "inadequately protected" crossings. The single crossing, in its abstract sense, is considered to be a system consisting of four subsystems: the external world, the crossing in its strict sense of the word, the railway and the road. The system analysis of the problem is based on an exhaustive set of bibliography, listed at the end of the paper. This analysis leads to many findings and those exerting the greatest impact are selected as the basis for the synthesis. The synthesis proposes a triangle of variables: time period, critical points on the railway network and the value of the risk indicator. This simple model may include also other variables by converting relevant values. The main result is the risk indicator over the network. It can be used for various scenarios, thus enabling their mutual comparison as well as application in investment studies.
Ključne besede: varnost v železniškem prometu, transportni sistemi, cestno-železniška križanja, sistemska analiza, tveganje
Objavljeno: 01.06.2017; Ogledov: 570; Prenosov: 75
 Celotno besedilo (3,68 MB)
Gradivo ima več datotek! Več...
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2. Analiza sistemske plošče z difuzorjem v sistemu HVACMitja Selič, 2016, magistrsko delo Opis: V magistrski nalogi je predstavljen sistem prezračevanja Airconomy, ki v celovit sistem vključuje
prezračevanje, talno ogrevanje ter hlajenje. Posebnost sistema je v tem, da gre za izpodrivno
prezračevanje, v katerem je vsa distribucija dovedenega zraka izvedena v sestavi tal.
Poudarek naloge temelji na analizi in primerjavi dveh tipov linijskih difuzorjev, in sicer difuzorja
LT451, ki ga pri vgradnji v sistem Airconomy kot standardno varianto uporablja podjetje Schütz ter
na drugi strani linijski difuzor LD15, ki pa je moja lastna zamisel. Analiza je razdeljena na tri osnovne
sklope, in sicer analiza tokovnega polja znotraj difuzorja z dodatnim manjšim delom klimatiziranega
prostora, analiza tokovnega in toplotnega polja v sistemski plošči in analiza tokovnega in
temperaturnega polja v klimatiziranem prostoru. V nalogi je analizirana primerjava vplivov različnih
izvedb difuzorjev na tokovno in temperaturno polje v prostoru.
Ključne besede: analiza linijskega difuzorja, sistem Airconomy, sistemska plošca, prezracevanje, ANSYS, CFD
Objavljeno: 23.02.2017; Ogledov: 918; Prenosov: 123
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