Iskanje po repozitoriju

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Ključne besede: daljinsko ogrevanje, energetska učinkovitost, napredni regulatorji, oddaljeno upravljanje, optimizacija sistema, prenosniki toplote, toplotne postaje, ogrevanje
Objavljeno v ReVIS: 05.06.2025; Ogledov: 215; Prenosov: 5
Celotno besedilo (1,73 MB)

Opis: Potrebe po energiji skozi čas naraščajo, tako kot število ljudi tega planeta. Energijo potrebujemo 24 ur 7 dni v tednu. Spreminjajoči se svet prinaša spremembe na ekonomiji in posledično v žepih ljudeh. Dosedanji viri se izrabljajo, stalno dražijo, kar pomeni, da ljudje iščemo nove vire energije, po možnosti take, ki ne uničujejo okolja. Eden od trajnostnih virov energije je geotermalna energija, ki jo najdemo pod svojimi nogami. Velik vpliv na življenje ljudi ima tudi naše finančno stanje na naših bančnih računih. Skrben in pameten človek pred vsako naložbo preračuna in pregleda različne ponudbe. V ekonomiji se pregled imenuje analiza vseh slabosti in koristi. Glavna nit analize magistrskega dela je ekonomska primerjava med pečjo na kurilno olje in geotermalno toplotno črpalko z geosondo. Ugotovili smo, da se naložba v geotermalno toplotno črpalko v večini preučenih različnih scenarijev povrne v življenjski dobi naložbe, razen pri ekstremnem dvigu cene električne energije. V splošnem vsakega investitorja zanima, ali bo naložba prinesla večji donos, kot če se naložba ne izvede. Glavni kazalnik, kdaj se naložba povrne, je povratna doba naložbe. Vsi kazalci temeljijo na denarnem toku, ki vsebuje realne podatke in predvidevanja. Glavna gonilna sila razvoja tega področja je vse večja oziroma množična uporaba, s čimer pridemo do večje količine realnih podatkov, potrebnih za analizo, ki so izmerjeni in ne predvidevani. Varovanje našega planeta ni pomembno samo za preostale vrste na tem planetu, ampak tudi za vse nas.
Ključne besede: geosonda, toplotna črpalka, ogrevanje, denarni tok, obnovljivi viri energije
Objavljeno v ReVIS: 13.05.2025; Ogledov: 349; Prenosov: 4
Celotno besedilo (7,01 MB)

Ključne besede: energija, hladilni sistemi, ogrevalni sistemi, ogrevanje, ogrevanje stavbe, učinkovitost, alpske hiše, primorske hiše
Objavljeno v ReVIS: 03.12.2024; Ogledov: 495; Prenosov: 9
Celotno besedilo (1,55 MB)

Opis: More than 20 years after the war, in Kosovo environmental degradation is increasing at an unprecedented rate. A large share of emissions that negatively influence the Kosovo environment is due to the outdated energy systems and inefficient buildings. A large potential for energy reduction is identified in the existing multistorey residential buildings, especially in urban centers, since most of them were built before 1999 and are not well maintained. The thesis focuses on potentials of those buildings with the goal of approaching the retrofitting process in a holistic manner. The holistic approach includes three sustainability pillars (environment, economy, socio-cultural aspects) and horizontal aspects, above all technical and process quality. From environmental perspective, the proposed dissertation deals with the energy efficiency in terms of using thermal energy more efficiently in the Pristina district buildings. The less energy those buildings use, less pollution (greenhouse gasses etc.) will be released into the air. From economic perspective, the focus is on the costs (operation, maintenance, repair costs and replacement costs). From socio-cultural aspects, the focus is on residents’ indoor comfort and well-being. Technical aspects focus on the quality of the installed building elements, like windows and heating system, and on their performance. Process quality is focused on the methodology that would enable multyfactor analyses and holistic approach to retrofitting, as well as the possibility to introduce features to improve control and manage energy consumption in buildings. A thorough survey in several multistorey residential buildings in Pristina, carried out in the form of questionnaires and energy audits, reveal several common quality and efficiency problems like insufficient thermal comfort, high energy use and high running costs. The proposed methodology for holistic approach toward energy retrofitting of apartment blocks focuses on these and other issues. It is tested on three realistic cases in Pristina, built before the year 1999. Several measures are proposed to show the potential for increasing the level of apartments’ efficiency and quality.
Ključne besede: prihranki, ogrevanje, energija, stavbe, kakovost zraka
Objavljeno v ReVIS: 04.01.2022; Ogledov: 1459; Prenosov: 62
Celotno besedilo (7,35 MB)

Ključne besede: biomasa, obnovljivi viri energije, ogrevanje, peleti, peletirna linija
Objavljeno v ReVIS: 04.12.2020; Ogledov: 3088; Prenosov: 121
Celotno besedilo (2,12 MB)