1. Pathway toward sustainable winter road maintenance (case study)Katja Malovrh Rebec, Janez Turk, 2023, independent scientific component part or a chapter in a monograph Abstract: Life Cycle Assessment (LCA) method was applied to evaluate the environmental impacts of winter road maintenance managed by an innovative road-weather information system and the impacts of vehicles passing the road during the snowstorm event. A case study refers to 10-hour lasting snowstorm event, considering a specific road section and application of a road-weather information management system to help winter road maintenance agency optimizing activities (salt gritting and/or plowing). Reliable information on the timing of the beginning of the snowstorm event affects (1) the activities of winter road maintenance, (2) the mobility of all vehicles passing the road, and (3) the fuel consumption of the vehicles. Since activities are optimized in case of preventive operation of winter road maintenance, less salt is needed overall. The road remains free of snow cover in case of preventive winter road maintenance operation, meaning that passenger cars and trucks pass the road at normal speed, without undesirable acceleration and braking caused by wheels slipping if snow accumulates on the road. Fuel consumption of vehicles passing salted and snow-free road remains unchanged, while fuel consumption increases in case of snow cover. Reduction of environmental burdens in case of such optimized winter road maintenance operation, is shown in this case study. The overall results of the comparative LCA analysis showed that the use of the road-weather information system in road traffic allows for as much as 25% reduction of environmental footprints. In the scenario where the winter service does not use information system the winter service also uses 40% more salt, which is also related with additional environmental impacts.
Keywords: LCA, okoljski odtisi, cesta, snežne razmere, preventivno delovanje, promet, poraba goriva, varnost, LCA, environmental impacts, road, snow cover, preventive operation, traffic, fuel consumption, safety
Published in DiRROS: 11.12.2023; Views: 173; Downloads: 110
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5. Popis sekalnikov 2021 : Gozdarski inštitut SlovenijeJaša Saražin, Tina Jemec, Darja Stare, Špela Ščap, Urban Žitko, Nike Krajnc, 2021, other monographs and other completed works Keywords: lesna biomasa, lesni sekanci, sekalniki, lesna goriva, Slovenija
Published in DiRROS: 28.01.2022; Views: 848; Downloads: 221
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6. Cene lesnih goriv v Sloveniji v drugi polovici leta 2021 : naloga v okviru aktivnosti javne gozdarske službe GIS 5/3.2 : spremljanje tokov lesa in trga z lesom v SlovenijiDarja Stare, Katarina Flajšman, 20201, treatise, preliminary study, study Keywords: gozdarstvo, lesna goriva, drva, peleti, sekanci, briketi, cene
Published in DiRROS: 02.11.2021; Views: 855; Downloads: 234
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7. Cene lesnih goriv v Sloveniji v drugi polovici leta 2020 : naloga v okviru aktivnosti javne gozdarske službe GIS 5/3.2 : spremljanje tokov lesa in trga z lesom v SlovenijiDarja Stare, 2020, treatise, preliminary study, study Keywords: gozdarstvo, lesna goriva, drva, peleti, sekanci, briketi, cene
Published in DiRROS: 16.03.2021; Views: 1105; Downloads: 435
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8. Cene lesnih goriv v Sloveniji v prvi polovici leta 2020 : naloga v okviru aktivnosti javne gozdarske službe GIS 5/3.2 : spremljanje tokov lesa in trga z lesom v SlovenijiDarja Stare, 2020, treatise, preliminary study, study Keywords: gozdarstvo, lesna goriva, drva, peleti, sekanci, briketi, cene
Published in DiRROS: 16.03.2021; Views: 1080; Downloads: 543
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10. Določanje vlažnosti drv z električnim uporovnim merilnikomPeter Prislan, Domen Arnič, Špela Ščap, Nike Krajnc, Aleš Straže, 2020, professional article Abstract: Vsebnost vode (vlažnost) je med pomembnejšimi kazalniki kakovosti drv. Za čim učinkovitejše in okolju prijazno delovanje Uredba o emisiji snovi v zrak iz malih kurilnih naprav navaja, da mora biti vsebnost vode v drveh manj kot 20 %. Za hitro preverjanje vsebnosti vode v drveh bi bila smiselna uporaba električnih uporovnih merilnikov. V pričujočem prispevku primerjamo meritve, opravljene z elektrouporovnimi merilniki različnih izvedb ter referenčno gravimetrično metodo. Rezultati kažejo, da gravimetrični metodi najbolj primerljive rezultate kažejo uporovni merilniki, ki omogočajo kompenzacijo gostote lesne vrste in temperature. V prispevku razpravljamo o uporabi različne terminologije in definicije lesne vlažnosti (t.j. relativna in absolutna vlažnost lesa, vsebnost vode) ter predlagamo postopek za čim boljšo oceno vlažnosti z enostavnimi elektro-uporovnimi merilniki.
Keywords: lesna goriva, lesna biomasa, vsebnost vode, kakovost drv
Published in DiRROS: 06.04.2020; Views: 2133; Downloads: 660
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