Pouzdanost određivanja sadržaja vode usitnjenog drva različitog granulometrijskog sastava pomoću uređaja EVO BIO PC

master's thesis

• Title (english): Reliability of the moisture content determination of fir wood particles of different granulometric composition by EVO BIO PC equipment
• Author: Ivana Damjanović
• Mentor: Matija Jug (mentor)
• Committee member: Branimir Šafran (predsjednik povjerenstva)
• Committee member: Nikola Španić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Forestry and Wood Technology; Zagreb
• Defense date and country: 2019-09-27, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Wood Technology; Wood Technological Processes

Abstract

U radu je prezentirano kako sadržaj vode kod jelovine utječe na proizvodnju biomase, njezin transport i skladištenje. Sadržaj vode sipkog materijala moguće je odrediti na mjestu uzorkovanja pomoću EVO BIO PC uređaja. To je uređaj nove generacije koji određuje sadržaj vode sipkog materijala, njegovim odabirom kalibracijske krivulje prema vrsti čestice i masi koja je najbliža u tablici pomoću koje se definira vrsta materijala (sječka, kora, blanjevina i dr.). Pouzdanost mjerenja EVO BIO PC uređaja provjerena je gravimetrijskom metodom. Osim sadržaja vode mjerena je nasipna gustoća i faktor rastresitosti sipkog materijala, te granulometrijska analiza. Provedene su laboratorijske analize prikupljenih uzoraka drvne sječke, piljevine, blanjevine i peleta. Na temelju rezultata laboratorijskih analiza sadržaja vode, prikazane su tvrdnje da li uređaji nove generacije zaista mogu biti precizni i točni kao „stare“ metode. Proizvodnjom i korištenjem biomase smanjuje se emisija štetnih tvari i doprinosi se zaštiti okoliša.

Abstract (english)

The paper presents how the water content of fir affects the production of biomass, its transport and storage. The bulk water content can be determined at the sampling point using an EVO BIO PC device. It is a new generation device that determines the water content of the bulk material, by selecting a calibration curve according to the type of particle and the mass closest to the table by which the type of material is defined (chips, bark, blanch, etc.). The reliability of the measurement of the EVO BIO PC device was verified by gravimetric method. In addition to the water content, the bulk density and the scattering factor of the bulk material were measured as well as the granulometric analysis. Laboratory analyzes of collected samples of wood chips, sawdust, blanching and pellets were carried out. Based on the results of laboratory analyzes of water content, claims are made as to whether new generation devices can really be as accurate and accurate as the "old" methods. The production and use of biomass reduces emissions and contributes to environmental protection.

• Keywords: Biomasa; sječka; pelet; nasipna gustoća; sadržaj vode; gravimetrijska metoda; EVO BIO PC
• Keywords (english): Biomass; wood chips; pellets; bulk density; water content; gravimetry method; EVO BIO PC
• Language: croatian
• URN:NBN: urn:nbn:hr:108:867608
• Study programme: Title: Wood Technology Processes; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka drvne tehnologije (magistar/magistra inženjer/inženjerka drvne tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Public note: dostupan samo sadržaj rada
• Created on: 2019-10-04 09:11:33