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678 items
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Proračun recirkulacionih pumpi u postrojenju za odsumporavanje dimnih gasova ,,TENT B"
Tomislav Trpković (2024)Predmet ovog rada baziraće se na proračunu i usvajanju mašinskih instalacija potrebnih za nesmetano funkcionisanje sistema dve međusobno povezane celine Absorber - Pumpna stanica, preko FRP ( Fiberglass Reinforced Plastic) cevovoda kojim se odvija transport suspenzije krečnjaka neophodnog u samom procesu odsumporavanja dimnih gasova. Pored tehničkog opisa same tehnologije koja uključuje tri objekta: Absorber, Pumpna Stanica i cevovod, glavni deo rada odnosiće se na proračun i usvajanje mašinskih instalacija koji uključuju recirkulacione radijalne centrifugalne pumpe i cevovode kojima ...postrojenje za odsumporavanje dimnih gasova, termoelektrana, pumpna stanica, FRP cevovod, Absorber, transport suspenzije gipsa, prirubnica, ventil, potisni cevovod, usisni cevovod... 1(g) | |N-2.2(g) - |N-2.3(g) EL.+23500 |EL.+23500 |EL.+23500 |EL.+23500 / | / | — [DN600' |DN600' |DN600 |DN750' 2 TF44 Z 020 N-2.3 (h) N-2.2(h) | |N-2.1(h) - |N-2(h) | || ı | EEL.+23500 · |EL.+23500 |EL.+23500 · |EL.+23500 59 Dozvoljena opterećenja na prirubnicama recirkulacionih pumpi data ...
... m3/h; L/G- odnos protoka recirkulisane suspenzije gasa koji se tretira u apsorberu. UNmŠ9;FG - protok sirovog gasa na ulazu u apsorber Nm3/h Na osnovu iskustva na sličnim postrojenjima, a kako bi izdvajanje SO2 bilo dovoljno efikasno,usvojeno je L/G =19,50 I/Nm3 Za FG= 3,970,244 Nm3/h vlažan ...
... 2411 Ukupno gubici H3 mLC H.7637 gubici u obe linije H4 mLC 3.7637 usvojena vrednost H mLiC 4A4 brzina suspenzije Qp/A/3600 vp m/s 2.33 faktor trenja (Moody diagram) f / 0.0305 Gubici na opremi Lop mstt 6 Ukupan dinamički napor suspenzije Hp=Apuk pojed +Zd-Zs +H Hp mstt |25,1 efikasnost ...Tomislav Trpković. Proračun recirkulacionih pumpi u postrojenju za odsumporavanje dimnih gasova ,,TENT B", 2024
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Izbor rotornih bagera za proces revitalizacije: primer rotornih bagera SRs 1200 u rudarskom basenu Kolubara
Predrag Jovančić, Dragan Ignjatović, Stevan Đenadić, Filip Miletić, Goran Todorović, Dragan Novaković (2020)Revitalizacija je proces ili skup tehničkih zahvata na mašini kojim se vrši zamena svih dotrajalih ili oštećenih delova metalne konstrukcije. Sastavni deo procesa revitalizacije je i modernizacija zastarele elektro-mašinske opreme. Principi revitalizacije sasvim sigurno nisu sadržani u okviru redovnog godišnjeg ili dnevnog održavanja. Oni predstavljaju održavanje onih veličina koje su značajne za mašinu kao celinu (u ovom slučaju rotorni bager). U ovom radu su analizirani rotorni bageri oznake SRs 1200. Na površinskim kopovima rudarskog basena Kolubara takvih bagera ima ...Predrag Jovančić, Dragan Ignjatović, Stevan Đenadić, Filip Miletić, Goran Todorović, Dragan Novaković. "Izbor rotornih bagera za proces revitalizacije: primer rotornih bagera SRs 1200 u rudarskom basenu Kolubara" in XIV Međunarodna konferencija OMC 2020, Zlatibor, Srbija, 14-17. oktobar 2020., Jugoslovenski komitet za površinsku eksploataciju (2020)
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Refinement of waste phosphogypsum from Prahovo, Serbia: characterization and assessment of application in civil engineering
Josip Išek, Lazar Kaluđerović, Nikola Vuković, Maja Milošević, Ivana Vukašinović, Zorica Tomić (2020)... within the crystal structure of gypsum; or (3) shifting of the HPO? + H,O > H,POx+OH- equilibrium in the neutral water solution to the left compared to the highly acidic conditions of phosphate rock digestion with H,SO,. (Ca(H.)POu), has 100 times greater solubility than the less acidic CaHPOu·2H»O ...
... a magnetic stirrer, the mixture was stirred for 2 h at ~45%C, allowed to settle for 2 h at the same tempera- ture and filtered through filter paper. The filtrate was then heated in another beaker at 90*C, stirred with a magnetic stirrer for 1 h and allowed to settle for 7h at the same temperature ...
... 400 700 WGLLU MPC(Th) 200 300 500 i MPC(K) 3000 5000 8000 The external and internal hazard indices, H.„„ and Hin, were defined using Eq. (4) and Eq. (5), respectively (UNSCEAR, 2000): C; c G H„- OR m ) 370 259 4810 _ e m O (5) — 185 259 — 4810 The values of these indices should be <1, to ...Josip Išek, Lazar Kaluđerović, Nikola Vuković, Maja Milošević, Ivana Vukašinović, Zorica Tomić. "Refinement of waste phosphogypsum from Prahovo, Serbia: characterization and assessment of application in civil engineering" in Clay Minerals, Cambridge University press (2020). https://doi.org/10.1180/clm.2020.11
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Analysis Of the Process Of Carbon Capture Utilization And Storage In Underground Reservoirs
John Nyame (2024)The importance of mitigating the effects of global climate change has necessitated an in-depth exploration of innovative strategies to reduce carbon dioxide (CO2) emissions. Among these strategies, Carbon Capture, Utilization, and Storage (CCUS) has emerged as a promising and transformative solution. This master thesis delves into the diverse realm of CCUS processes, aiming to unravel the positives challenges, and opportunities within this dynamic field. The analysis begins with a systematic examination of carbon capture technologies, encompassing post-combustion, pre-combustion, and oxy-fuel combustion ...... JHCTpHOyinHjy H jaBHO caorTaBahbc JicJIa, H ripepajie, aKO Ce HaBCJIĆ HMC ayTOpa Ha HauHH OJIpebeH oJt crpaHe ayropa H naBaoma JIHIIeHIIC, uaK H y KOMECPpIIHJaJIHe CBpXe. OBo Je Hajcn0o00/iHHja OJ CBHX JIHILČHIH. AyTOpcTBO — HeKOM6epIHjaJIHO. J|O3BOJbaBaTc yMHO)KaBaMbc, JHCTpHOyHHJy H JaBHO cao ...
... KODČKTHO HaBCJIĆHH H • a HHCaM Kpmmo/a ayTopcKa npaBa H KOpHcTHO/Hđa HHTeJIČKTyaJIHy CBOJHHy JIpyrHx Jmuama. Y Beorpajty, 22/01/2024 IIornuc cryneHra Ob0pasau 2 H3JABA O HCTOBETHOCTH IHITAMITAHE H EJIEKTPOHCKE BEP3MHJE 3ABPIIHHOT PAJIA Huwe (HMe PpojiHTeJba) H IIpe3HMe cTyJIeHTa JOHN ...
... Ce OOJaBC MOJH HHuHH TIOJ1a1iH BEC3aHH 30 JOOHJaMbC aKaJIĆMCKOT 3BaMba, KaO IITO Cy HMC H IIpe3HMe, TOJUHHa H MecTO pobehba H JaTyM OJIOpaHe pajta. OBH JMuHH HOJamM MOTy Ce OOjaBHTH y CHČKTDOHCKOM KaTaory H y myOmMKarjaMa Py/apcko-reoiormikor (paky1rreTra. y Beorpany, 22/01/2024 IIornuc cryneHra ...John Nyame. Analysis Of the Process Of Carbon Capture Utilization And Storage In Underground Reservoirs, 2024
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Poboljšanje geotehničkih uslova izgradnje nasipa upotrebom geosintetika
Anastasija Radovanović (2024)Za potrebe izrade rada na Master akademskim studijama ,,Rudarsko-geološkog fakulteta,,, studijskog programa Geotehnika, pod mentorstvom prof. dr Gordane Hadži-Niković , izvršena je detaljna analiza stabilnosti kosina nasipa na Vranjskoj petlji. Geotehnička istraţivanja i ispitivanja terena izveo je “Zavod za geotehniku iz Instituta za puteve a.d. Beograd”, a investitor je “Javno preduzeće, Putevi Srbije”.Metodološki pristup koji je korišćen za analizu stabilnosti kosina nasipa jeste kabinetsko istraživanje dostavljene dokumentacije i geostatički proračuni analize stabilnosti kosina nasipa, korišćenjem savremenih softverskih alata.Krajnji zaključak izvedenih istraţivanja je da ...... JHCTpHOyinHjy H jaBHO caorTaBahbc JicJIa, H ripepajie, aKO Ce HaBCJIĆ HMC ayTOpa Ha HauHH OJIpebeH oJt crpaHe ayropa H naBaoma JIHIIeHIIC, uaK H y KOMECPpIIHJaJIHe CBpXe. OBo Je Hajcn0o00/iHHja OJ CBHX JIHILČHIH. AyTOpcTBO — HeKOM6epIHjaJIHO. J|O3BOJbaBaTc yMHO)KaBaMbc, JHCTpHOyHHJy H JaBHO cao ...
... H KODČKTHO HaBCJIĆHH H • a HHCaM Kpmmo/a ayTopcKa npaBa H KOpHcTHO/Hđa HHTeJIČKTyaJIHy CBOJHHy JIpyrHx Jmuama. Y Beorpajny, 23.09.2024. IIornuc cryneHra Ob0pasau 2 H3JABA O HCTOBETHOCTH IHITAMITAHE H EJIEKTPOHCKE BEP3MHJE 3ABPIIHHOT PAJIA Me (HMe po/iHTeJba) H rpeauMe cryaegHra _ ...
... Ce OOJaBC MOJH HHuHH TIOJ1a1iH BEC3aHH 30 JOOHJaMbC aKaJIĆMCKOT 3BaMba, KaO IITO Cy HMC H IIpe3HMe, TOJUHHa H MecTO pobehba H JaTyM OJIOpaHe pajta. OBH JMuHH HOJamM MOTy Ce OOjaBHTH y CHČKTDOHCKOM KaTaory H y myOmMKarjaMa Py/apcko-reoiormikor (paky1rreTra. ',y Beorpany, 23.09.2024. IIornuc ...Anastasija Radovanović. Poboljšanje geotehničkih uslova izgradnje nasipa upotrebom geosintetika, 2024
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Understanding the effect of synthesis and sintering temperature on the functional properties of barium titanate/cobalt ferrite composites
Marija Šuljagić, Aleksandar Kremenović, Ivan Petronijević, Adis Džunuzović, Miljana Mirković, Vladimir Pavlović, Ljubica Anđelković (2023)To investigate the effect of synthesis procedure and sintering temperature on the functional properties of perovskite/spinel ceramics, BaTiO3/CoFe2O4 composites were prepared by thermal decomposition, coprecipitation, and microemulsion method, and sintered at 1150°C and 1300°C. The phase composition and morphology of as-prepared powders as well as sintered ceramics were thoroughly examined by X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS). The dielectric and ferroelectric measurements were performed in detail. Generally, the ...Marija Šuljagić, Aleksandar Kremenović, Ivan Petronijević, Adis Džunuzović, Miljana Mirković, Vladimir Pavlović, Ljubica Anđelković. "Understanding the effect of synthesis and sintering temperature on the functional properties of barium titanate/cobalt ferrite composites" in Science of Sintering (2023). https://doi.org/10.2298/SOS220512013S
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Mogućnost korišćenјa toplotnih pumpi sa otpadnom toplotom iz postrojenјa za prečišćavanјe otpadnih voda kao toplotnim izvorom
U narednom periodu se planira izgradnja nekoliko desetina sistema za prečišćavanje otpadnih voda u većim gradovima u Srbiji. Iskustva iz postrojenja koja su trenutno u radu, pokazuju da bi prečišćena otpadna voda, s obzirom na protok i temperaturu, mogla da predstavlja značajan izvor obnovljive energije. U radu su prikazani primeri dobre prakse korišćenja ove energije u sistemima daljinskog grejanja u zemljama Evropske unije. Analiziran je rad postrojenja za prečišćavanje otpadnih voda u Šapcu i razmotrena je mogućnost njegovog korišćenja ...... 10. Slika 5. Protok vode na izlazu iz PPOV Šabac (m3/h) Srednja vrednost protoka u periodu od početka rada postrojenja iznosi 606,2 m3/h, sa prosečno najvećim protokom tokom marta (695 m3/h), a najnižim tokom januara (488 m3/h). Tokom meseci, protok najviše varira u januaru, kada odnos ...
... niti centralni sistemi za hlađenje prostora u postojećim zgradama. 0 10 20 30 40 50 60 0 500 1000 1500 2000 2500 3000 3500 h e a t lo a d f o r D H g ri d i n M W hours per year Slika 3. Kriva godišnjeg opterećenja SDG u Šapcu [11] Kriva opterećenja u sistemu daljinskog ...
... s/heat-pumps-in- district-heating-and-cooling-systems-final-report/ [pristupljeno 15.01.2021] [4] David, A., Mathiesen, B.V., Averfalk, H., Werner, S., Lund, H. Heat roadmap Europe: large-scale electric heat pumps in district heating systems, Energies, Vol 10, Issue. 4, pp 578, 2017. https://doi ...Dejan Ivezić, Marija Živković, Aleksandar Madžarević, Boban Pavlović. "Mogućnost korišćenјa toplotnih pumpi sa otpadnom toplotom iz postrojenјa za prečišćavanјe otpadnih voda kao toplotnim izvorom" in Energija, Ekonomija, Ekologija, University Library in Kragujevac (2021). https://doi.org/10.46793/EEE21-1.11I
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Tektonska evolucija ugljevičkog basena (Bosna i Hercegovina)
Slobodan Dragić (2024)U radu je prezentovana šira slika tektonske evolucije ugljevičkog basena, kao i Dinarida uopšte. Prikazani su litostratigrafski odnosi istraživanog područja, kao i kratak pregled tektonskih jedinica koje se nalaze u domenu basena. Najveća pažnja posvećena je kinematskoj analizi rasjednih struktura i interpretaciji podataka u svjetlu tektonske evolucije basena. Ugljevički basen zapunjen je oligocensko-miocenskim sedimentima, a njegovu osnovu grade paleozojsko-mezozojske formacije. Najstarije tvorevine na ovom području su permski sedimenti. Trijaski i kredni deponati, uglavnom krečnjaci, reprezent su tvorevina ...... JHCTpHOyrHjy H jaBHO caornrrraBabe JIeHa, H ripepajie, aKO Ce HaBeJIC HME ayTOpa Ha HauuHH OJIpebeH oJ crpaHe ayropa H naBaona JIHIIeHIIe, MaK H y KOMepnjaJiHe CBpXe. OBo je Hajca1000/iHHja OJI CBHX JIHILČHTIH. AyTOpcTBO — HeKOMePpiIHjaJIHO. J[O3BOJbaBaTC yMHO)KaBaMbc, JHCTpHOyHMHJy H jaBHO cao ...
... KOpČKTHO HaBCJICHH H • na HHCaM Kprmmio/na ayropcKa IIipaBa H KOpHcTHO/a HHTeJIČKTy2aJIHy CBOJHHy J(pyrHXx numa. V Beorpany, 23.09.2024. IIornuc cryneHra O0pasau 2 H3JABA O HCTOBETHOCTH IIITAMIIAHE H EJIEKKTPOHCKE BEP3MHJE 3ABPIIHOT PAJIA MHwe (HMe poj}iHTeJba) H pe3HMe cryaneHra CnoOomaH ...
... OOJaBC MOJH JIHUHH IHIOJ1a1IH BcC3aHH 3a NOOMHJaMĐbc aKaJIĆMCKOT 3BaMba, KaO IIITO Cy HMC H IIpe3HMe, TOJHHa H MecTO pobehba H JaTyM OJIOpaHe pajna. OBH JMUHH HOJalM MOTy CC OOjaBHTH y CJEČKTDOHCKOM KaTaMory H y myOmaKamMjaMa Pyxnapcko-reomomrkor (bakynreTa. V Beorpany, 23.09.2024. IIornuc crynenra ...Slobodan Dragić. Tektonska evolucija ugljevičkog basena (Bosna i Hercegovina), 2024
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Uticaj površinske obrade kamena na promenu primarne poroznosti
Ana Radivojević (2024)Površinska obrada kamena je izuzetno bitna kod stena koje se koriste u izgradnji svih vrsta objekata. Površinskom obradom se direktno utiče, ne samo na estetska svojstva kamena nego i na njegove fizičko-mehaničke karakteristike. Cilj ovog završnog rada je analiza uticaja poliranja i rezanja kao tehnoloških procesa obrade na poroznost odabranih vrsta arhitektonsko-građevinskog kamena. Ispitivane stene su gabro „Nero Assoluto“, granit sa površinskog kopa „Ploče“, granit African Red, krečnjak sa lokaliteta „Skržut“ i krečnjak poznat pod nazivom „Sirogojno crveni“.... slici (2.76). Masa uzoraka je merena u određenim vremenskim intervalima: nakon 30 min. potopljenog u vodi, zatim nakon 60 min, 3 h, 8 h, 24 h, 48 h i na kraju nakon 72 h stajanja u vodi. Pre svakog merenja mase uzoraka, sa površine su se uklanjale kapljice vode vlažnom krpom. 24 Slika 2.16 — ...
... KOpČKTHO HaBeJIČHH H • Ja HHCaM Kpmmo/ma ayTopcKa mpaBa H KOpHcTHO/Ha HHTeJIeKTyaJIHy CBOJHHy JIpyrHMx nuana. y Beorpaany, __2%. . 5, 4000 IIornuc cryneHra O60pasay 2 M3JABA O HCTOBETHOCTbHMZ IITTAMITAHE H EJIEKTPOHCKE BEP3MJE 3ABPIIIHOT PAJIA ” MHwe (HMe ponuarTeJba) H npe3HMe CTyJIeHTa ...
... caonrTaBakbc JleJIa, H npepane, aKo ce HaBene HMC ayTOpa Ha HauHH O,npeljeH oJi crpaHe ayTopa anH naBaona nuuceHue, uaK H y KOMepuHjajiHe CBpXe. OBo je Hajcno0o0/HHja OJI CBHX JIHICHLUHH. AyropcrBo — HeKoMepuijajno. /[oaBoJbaBaTe yMHOXxaBaM, nHcTpHOyrHjy H jaBHO caontuTaBaMĐe nena, H Hpepane, aKO Ce ...Ana Radivojević. Uticaj površinske obrade kamena na promenu primarne poroznosti, 2024
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Geotermalni potencijal pliocensko-kvartarnih sedimenata na teritoriji opštione Novi Beograda
Matija Ognjanović (2024)Svrha ovog rada određivanje geotermalne potencijalnosti teritorije opštine Novi Beograd. Određivanje geotermalne potencijalnosti Novog Beograda predstavlja kvantifikovanje geotermalnih resursa na njegovj teritoriji.Analizom opštih karakteristika tj. geografskim položajem, klimatskim, hidrološkim, hidrografskim i geomorfološkim karakteristika, zajedno sa geološkim, hidrogeološkim i opštim geotermalnim karakteristika istražnog područja stiče se jasan zaključak o istražnom području.U savremene geotermalne indikatore, u vidu povećane temperature podzemnih voda, pre svega zbog efekta toplotnog ostrva i sintezom svih pređašnjih podataka, kao podloge za dalju, detaljniju, analizu dolazi se do koraka ...... JUHCTpHOyiIMHjy H jaBHO caormTaBahbe JIca, H ripepajie, aKO Ce HaBeJIĆ HMC ayTOpa Ha HauHH OJIpebjeH oJ1 crpaHe ayrTopa H naBaoma JIHIIeHIIC, UaK H y KOMCPIHJaJIHe CBpXe. OBo je Hajcno0o/iHHja OJLCBHX JIHIIČHIH. AyTOpcTBO — HeKOMOPIIHjaJIHO. /[O3BOJbaBaTC yMHO)KaBaMbe, HHCTpHOynujy H JaBHO caornmrraBaPe ...
... KODČKTHO HaBCJIĆČHH H • a HHCaM KpiHo/a ayropcka rpaBa H KOpHcTHO/Ha HHTeJIČKTyaJIHy CBOJHHy JIpyrHx Jmuama. V Beorpany, __27.09.2024. IIornuc cryneHra Ob0pasau 2 H3JABA O HCTOBETHOCTH IHTAMIIAHE H EJIEKTPOHCKE BEP3MHJE 3ABPIHHOT PAJIA Hwe (HMe pojiHTeJba) H IIpe3HMe cTyJIeHTa Marnja ...
... Ce OOJaBC MOJH HHuHH TOJ1a1iH BC3aHH 30 JOOHJaMbC aKaJIĆMCKOT 3BaMba, KaO IITO Cy HMC H HIpe3HMe, TOJIHHa H MecTO pobehba H JaTyM OJIOpaHe pajta. OBH JMuHH HOJMalM MOTy CC OOjaBHTH y CJCČKTDOHCKOM KaTaMmory H y myOmMKanujaMa Pyxapcko-reo:ortmikor (pDakyreTa. V Beorpany, __27.09.2024. IIornuc ...Matija Ognjanović. Geotermalni potencijal pliocensko-kvartarnih sedimenata na teritoriji opštione Novi Beograda, 2024
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Rock slope stability analysis under Hoek–Brown failure criterion with different flow rules
The stability analysis of homogeneous rock slope following the Hoek–Brown failure criterion under the hypothesis of different flow rules is performed based on limit equilibrium and finite element methods. The applied failure criterion is the generalized Hoek–Brown that can be introduced as a shear/normal function in analysis applying different flow rules. The results are compared with those obtained by the application of equivalent shear strength parameters of the Mohr–Coulomb criterion, considering that this is still the most widely used ...Kružna klizna površ, Huk-Braunov kriterijum loma, Kriterijum popuštanja, Smičuća/normalna funkcija, Nivo napona, Verovatnoća i parametarska analizaSvetlana Melentijević, Zoran Berisavljević, Dušan Berisavljević, Claudio Olalla Marañón . "Rock slope stability analysis under Hoek–Brown failure criterion with different flow rules" in Bulletin of Engineering Geology and the Environment , Springer (2024). https://doi.org/10.1007/s10064-024-03667-0
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Modeliranje disperzije dimnih gasova iz termoelektrane ,, Nikola Tesla”
Milica Kostić (2024)Termoelektrane na ugalj, iako značajan izvor električne energije, predstavljaju veliki izazov zbog zagađenja koje uzrokuju. Glavni uzrok zagađenja je neumerena ljudska potreba za energijom i resursima, što dovodi do emisije različitih zagađivača u atmosferu, uključujući okside ugljenika, sumpora, azota, kao i lebdeće čestice i toksine. Ove emisije imaju negativan uticaj na kvalitet vazduha, zdravlje ljudi i životnu sredinu. Procena uticaja termoelektrana na ugalj na životnu sredinu je zakonska obaveza i ključna za smanjenje tih negativnih efekata. Ovaj dokument analizira potencijalne ...... J_ _= +> . — 2 3 — — — — — — — 5, | . . , — — — — K c ı ı } : | | H“H H R G G Č O G R G J d U 8 B j g q u d u u d i r ć đ d u U ( J u EEE :1 | M u V g d W 3 1 d 3 S M V H W 3 A O N u V g d W 3 2 3 G Slika 6.3. Srednje mesečne vrednosti relativne važnosti vazduha ...
... ce oOjaBe MOJH HnHuHH mojlalH BC3aHH 3a JOOHjaHbe aKkajIĆMCKOT 3BaHba, KaO IITO Cy HME H Hpe3HMe, rojuHHa H MecTO poljetba H naTyM ojiOpaHe pajta. OBH JHHHH MOJalH MOTy Cc OOjaBHTH Yy cCJeKTpOHCKOM KaTamory H y nyOmHKanmHjaMa Pynapcko-reonomikor (pakyanrera. 17.09.2024. 'Y Beorpajny, Ilornuc ...
... JHcTpHOyuH|y H jaBHo caonurraBakbe Jena, H nipepa;te, ako ce HaBeJle HMe ayropa Ha HauHH ojipeljeH oji crpaHe ayropa HH JnaBaorma JIHIICHIIC, daK H y KOMepiHjanHe cBpxec. OBo je Hajca1o0o/HHja OJI CBHX JIHIICHIH. AyTopcrTBO — HeKoMepuuHja.Ho. /loxBojbaBaTe yMHoxaBaMe, HHcTpHOynu|y H |aBHO caommrraBakbe ...Milica Kostić. Modeliranje disperzije dimnih gasova iz termoelektrane ,, Nikola Tesla”, 2024
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Savremeni pristup rešavanja problema industrijskog otpada
Mariја Bošković (2024)Rad ukazuje na savremene metode rešavanja problema industrijskog otpada, sa posebnim fokusom na pećnu prašinu koja nastaje tokom metalurških procesa, poput proizvodnje čelika u elektrolučnim pećima. U radu se detaljno razmatra hemijski sastav pećne prašine, koja sadrži teške metale poput cinka, olova i kadmijuma, i naglašavaju ekološki izazovi koje predstavlja njeno zbrinjavanje. Takođe, analiziraju se metode tretmana i valorizacije pećne prašine, uključujući pirometalurške i hidrometalurške procese, pri čemu je poseban akcenat stavljen na reciklažu cinka iz pećne prašine. Dalje, ...... JIHCTpHOynHjy H jaBHO caormrTaBakhbe JIea, H ripepajie, aKO Ce HaBeJIC HME ayTOpa Ha HauuHH OJIpebeH oJ crpaHe ayropa H naBaona JIHIIeHIIe, MaK H y KOMCpIHJaJIHe CBpXc. OBo je Hajc-1000/HHja OJI CBHX JIHITCHIH. AyTOpcTBO — HeKOMePpiIHjaJIHO. J[O3BOJbaBaTC yMHO)KaBaMbc, JHCTpHOyHMHJy H jaBHO caontrraBabb ...
... mrkor (pakynrera H JIpyrHxX BHCOKOTNHIKOJICKHX ycTaHoBa; • na cy pe3yjrraTrH KOpČKTHO HaBCJIĆHH H • a HHCaM KpriHo/ma ayropckKa rIpaBa H KopHcTHO/JIa HHTeJIČKTyaJIHy CBOJHHy JIpyrux JIa. Y Beorpany, 24.9.2024. IIornuc cryneHrTa š1 H3JABA O HCTOBETHOCTH IIITAMIIAHE H EJIEKTPOHCKE BEP3HJE ...
... 06jaBe MOjl/I JiHuHH tIOJIalniH BeC3aHH 3a HOČHjaH)e aKaJIČMCKOT 3BaMb4a, KaO ITTO Cy HMEC H HIpe3HMe, rOJHHa H MecTO pobema H JaTyM OJIOpanHe pajla. OnBH JmuHu nojaru Mory ce oOjaBHTH y eJIeČKTpOHCKOM KaTajIlory H y IyOnaHKaruijaMa Pynapcko-reomomikor (bakynrerTa. V Beorpany, 24.9.2024. IIornuc ...Mariја Bošković. Savremeni pristup rešavanja problema industrijskog otpada, 2024
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BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1) Composites Synthesized by Thermal Decomposition: Magnetic, Dielectric and Ferroelectric Properties
Marija Šuljagić, Ivan Petronijević, Miljana M. Mirković, Aleksandar Kremenović, Adis Džunuzović, Vladimir B. Pavlović, Aleksandra Kalezić-Glišović, Ljubica Andjelković (2023)To investigate the influence of spinel structure and sintering temperature on the functional properties of BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1), NiFe2O4, ZnFe2O4, and Ni0.5Zn0.5Fe2O4 were in situ prepared by thermal decomposition onto BaTiO3 surface from acetylacetonate precursors. As-prepared powders were additionally sintered at 1150 °C and 1300 °C. X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS) were used for the detailed examination of phase composition and morphology. The magnetic, dielectric, and ...ferroelectric, dielectric properties, magnetic properties, titanate/ferrite composites, phase composition... magnetoelectric coupling, in single-phase BaTiOs-BiFeOy system. J. Appl. Phys. 2013, 113, 144101. [CrossRef] Patil, D.; Kim, J.-H.; Chai, Y.S.; Nam, J.-H.; Cho, J.-H.; Kim, B.-I.; Kim, K.H. Large Longitudinal Magnetoelectric Coupling, in NiFe>»Oa-BaTiOy Laminates. Appl. Phys. Express 2011, 4, 73001 ...
... 20 18|- 16| 144| s | —— ~ Ž 12 - Pl J·\–T··J–r–n–w?–r·)?–«_»–&i%,_ —H;\Jf , 10[ —— BaTiOJNiFe,O, R i s= s . i —c— — BaTiO„/ZnFe,O, a | —— BaTiO,„Ni, Zn,.Fe,O, \·“\ 4l 2|- -a yO OO \ o \HŽ·;·C«_–()–(A')–(H OO Oy-C—CxoO| 0 100 200 300 400 500 600 t["C] 20 . LAA 1300 •C 16| c ...
... Zhou, L.; Cao, H.; Cruz, C.; Yang, J.; Dai, J.; Yin, Y.; Yuan, Z.; Zhang, S.; et al. Observation of Magnetoelectric Multiferroicity in a Cubic Perovskite System: LaMnaCraOy. Phys. Rev. Lett. 2015, 115, 87601. [CrossRef] [PubMed] 14. Takahashi, Y.; Shimano, R.; Kaneko, Y.; Murakawa, H.; Tokura, Y. ...Marija Šuljagić, Ivan Petronijević, Miljana M. Mirković, Aleksandar Kremenović, Adis Džunuzović, Vladimir B. Pavlović, Aleksandra Kalezić-Glišović, Ljubica Andjelković. "BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1) Composites Synthesized by Thermal Decomposition: Magnetic, Dielectric and Ferroelectric Properties" in Inorganics, MDPI AG (2023). https://doi.org/10.3390/inorganics11020051
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Application of VIКOR method in the selection of an optimal splution of excavation “Borska Reka” ore deposit
Sanja Bajić, Dragoljub Bajić, Branko Glušćević, Radmila Gaćina. "Application of VIКOR method in the selection of an optimal splution of excavation “Borska Reka” ore deposit" in 9th International Conference Mining and Environmental protection MEP, 24 – 27 May 2023, Sokobanja, Serbia , Belgrade : University of Belgrade-Faculty of mining and geology (2023)
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Mineragenija i potencijalnost karbonatnih sirovina rudnog reona Bjelopavlića (Crna Gora)
Darko M. Božović (2016-09-28)Karbonatne sirovine, obzirom na geološku građu Crne Gore predstavljaju jednu od najznačajnijih nemetaličnih mineralnih sirovina. U Crnoj Gori postoje brojna leţišta karbonatnih sirovina (arhitektonsko - građevinskog i tehničko - građevinskog kamena) koja su istraţena ili su u eksploataciji, među kojima rudni reon Bjelopavlića zauzima najznačajnije mjesto.Dosadašnja istraţivanja karbonatnih sirovina na ovom području imala su, međutim, prevashodno uzak istraţivački cilj, utvrđivanje rezervi arhitektonsko - građevinskog i tehničko - građevinskog kamena određenog leţišta, ili preliminarna ispitivanja kvaliteta krečnjaka u njima, sa ...karbonatne mineralne sirovine, arhitektonsko - građevinski kamen, tehničko - građevinski kamen, karbonatna punila, rudni reon Bjelopavlića, potencijalnost.... 3 7 ,7 4 F e O / H K L -1 / 2 2 ,4 9 7 4 ,5 3 6 ,6 2 0 ,1 1 0 ,2 4 1 6 ,0 1 F e O / H K L -1 / 3 1 ,5 5 7 0 ,6 5 1 0 ,7 8 1 7 ,0 3 F e O / H K L -1 / 4 1 ,4 0 ...
... 2 0 ,4 7 F e O / H K L -1 / 5 1 ,1 1 4 6 ,5 8 1 7 ,1 2 3 5 ,1 9 F e O / H K L -1 / 5 0 ,9 9 4 9 ,0 7 1 9 ,6 6 3 0 ,2 7 F e O / H K L -1 / 6 1 ,1 2 6 ...
... 1 9 ,1 7 F e O / H K L -5 / 1 3 ,5 8 1 ,2 4 7 7 ,2 1 0 ,4 8 3 ,2 8 0 ,2 0 1 4 ,0 2 F e O / H K L -5 / 2 2 ,9 3 8 2 ,0 2 7 ,6 7 7 ,3 8 F e O / H K L -5 / 3 4 ,5 ...Darko M. Božović. "Mineragenija i potencijalnost karbonatnih sirovina rudnog reona Bjelopavlića (Crna Gora)" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-09-28)
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Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal
Ivan Kojić, Achim Bechtel, Nikoleta Aleksić, Dragana Životić, Snežana Trifunović, Gordana Gajica, Ksenija Stojanović (2021)... 116.2 × mass proportion of H + 6.3 x mass proportion of N + 10.5 x mass proportion of S − 11.1 × mass proportion of O [40,56]; Qg8 = 971 + 323.6 × %C + 711 × %H [57]; Qg9 = (145.44 × %C + 620.28 × %H + 40.5 × %S − 77.54 x%O)/0.429923 [53,55]; Qg10 = (151.2 × %C + 499.77 × %H + 45 ×%S − 47.7 × %O + 27 ...
... of C + 84.9 × (mass proportion of H − mass proportion of O/8)— 0.62 [53]; Qn2 = 34.1 × mass proportion of C + 121.4 × mass proportion of H − 15.3 × mass proportion of O + 10.5 × mass proportion of S [53]; Qn3 = 33.9 × mass proportion of C + 121.5 × mass proportion of H − 12.7 × mass proportion of O + 9 ...
... 117.7 × mass proportion of H − 15.6 × mass proportion of O [54]; Qn5 = 33.8 × mass proportion of C + 122.3 × (mass proportion of H − mass proportion of O/8) + 9.4 × mass proportion of S [55]; Qg—gross calorific value; Qg6 = 33 × mass proportion of C + 120 × mass proportion of H − 16 × mass proportion of ...Ivan Kojić, Achim Bechtel, Nikoleta Aleksić, Dragana Životić, Snežana Trifunović, Gordana Gajica, Ksenija Stojanović. "Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal" in Polymers, MDPI AG (2021). https://doi.org/10.3390/polym13050759
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A fuzzy-based decision support model for effectiveness evaluation - a case study of examination of bulldozers
Effectiveness evaluation is one of the basic components of engineering asset management and maintenance engineering in general. Effectiveness is an overall concept representing a measurement of quality of service level for the analyzed engineering system. This concept contains a series of partial indicators relating to time in operation and time for maintenance activities, as well as functional properties of the system. This article describes the analysis and structuring of partial indicators, as well as the development of a model ...Miloš Tanasijević, Predrag Jovančić, Dejan Ivezić, Uglješa Bugarić, Radiša Đurić. "A fuzzy-based decision support model for effectiveness evaluation - a case study of examination of bulldozers" in International Journal of Industrial Engineering: Theory, Applications and Practice (2019)
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Adsorption and degradation of some psychiatric drugs by sol-gel synthesized titania-based photocatalysts: influence of tungsten and sodium content
Nina L. Finčur, Maja J. Šćepanović, Mirjana Grujić-Brojčin, Biljana F. Abramović, Jugoslav B. Krstić, Aleksandar Kremenović, Tatjana Srećković, Aleksandar Golubović (2019)Mesoporous anatase nanopowders were doped with 0.05−0.5 mol% of W6, in order to obtain more efficient photocatalyst than TiO2 Degussa P25 in the degradation of amitriptyline (AMI) under simulated solar irradiation (SSI). Dominant XRPD peaks were ascribed to anatase phase, with additional peaks which could correspond to brookite, TiO2 bronze and sodium titanate, Na2Ti9O19. The Raman scattering measurements have confirmed anatase as dominant phase, with broad Raman feature at ~270 cm−1 possibly related to Ti–O–Na stretching vibration. All W-doped ...Sol-gel synthesis, Doped titania nanopowders, XRPD, Raman spectroscopy, Adsorption and photocatalytic degradation, Psychiatric drugsNina L. Finčur, Maja J. Šćepanović, Mirjana Grujić-Brojčin, Biljana F. Abramović, Jugoslav B. Krstić, Aleksandar Kremenović, Tatjana Srećković, Aleksandar Golubović. "Adsorption and degradation of some psychiatric drugs by sol-gel synthesized titania-based photocatalysts: influence of tungsten and sodium content" in Journal of Sol-Gel Science and Technology, Springer Science and Business Media LLC (2019). https://doi.org/10.1007/s10971-019-04925-4
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Surface functional groups and degree of carbonization of selected chars from different processes and feedstock
Marija Ilić, Franz-Hubert Haegel, Aleksandar Lolić, Zoran Nedić, Tomislav Tosti, Ivana Sredović Ignjatović, Andreas Linden, Nicolai D. Jablonowski, Heinrich Hartmann (2022)The knowledge ofthe structural and chemical properties of biochars is decisive for their application as technical products. For this reason, methods for the characterization of biochars that are generally applicable and allow quality control are highly desired. Several methods that have shown potential in other studies were used to investigate two activated carbons and seven biochars from different processes and feedstock. The chars were chosen to cover a wide range of chemical composition and structural properties as a hardness ...Biougalj, različiti procesi dobijanja, različite sirovine, površinski aktivne grupe, x-ray, FT-IR,XPS... degradation. Decarboxylation and decarbonylation result in lower O/C and higher H/C, dehydrogenation in lower H/C and demethanization in lower H/C and higher O/C. Evolution of other volatile compounds also affect O/C and H/C. The largest deviation from the linear fit is found for CS180h and PW700g ...
... hydrothermal carbonization at 180 "C for typically 8-12 h. M200h was produced by hydrothermal carbonization of Mis- canthus x giganteus biomass at 200 "C by Schlitt GmbH (Antrifttal-Ohmes, Germany) using HTC at 200 'C for typically 4-8 h. Other materials. Sand F36 with 97% of the material having ...
... for 24 h with 0.05 M HClin order to remove ash components [57]. Then they were washed twice with 1 M CaCl, and subsequently with deionized water (all at a 50/1 solution/char ratio) until the filtrates had an electrical conductivity < 10 HS /cm. Finally, the samples were dried for > 60 h at 50 'C ...Marija Ilić, Franz-Hubert Haegel, Aleksandar Lolić, Zoran Nedić, Tomislav Tosti, Ivana Sredović Ignjatović, Andreas Linden, Nicolai D. Jablonowski, Heinrich Hartmann. "Surface functional groups and degree of carbonization of selected chars from different processes and feedstock" in PLOS ONE (2022). https://doi.org/10.1371/journal.pone.0277365