Energetski potencijal invazivne biljne vrste cigansko perje (Asclepias syriaca L.)

master's thesis

• Title (english): Energy efficiency of invasive plant species common milkweed (Asclepias syriaca L.)
• Author: Ivona Bukarica
• Mentor: Neven Voća (mentor)
• Committee member: Neven Voća (predsjednik povjerenstva)
• Committee member: Vanja Jurišić (član povjerenstva)
• Committee member: Dubravka Dujmović Purgar (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Sustainable Technologies and Renewable Energy Sources); Zagreb
• Defense date and country: 2018-02-09, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Energetske potrebe iz dana u dan neprekidno rastu zbog sve većeg broja svjetskog stanovništva i gospodarskog razvoja. Koriste se velike količine fosilnih goriva, a posljedica toga su emisije stakleničkih plinova, štetan utjecaj na zdravlje ljudi i na okoliš. Korištenje obnovljivih izvora energije može doprinijeti smanjenju ovih posljedica, a najveći doprinos očekuje se od biomase.
Cigansko perje ili svilencia (Asclepias syriaca L.) je višegodišnja zeljasta biljka iz porodice svilenica (Asclepiadaceae), koja može narasti i do 2 metra visine. Osim invazivnih svojstava iskorištava se u industrijske svrhe i odlična je medonosna biljka.
Cilj rada bio je utvrditi energetsku iskoristivost invazivne biljne vrste cigansko perje preostale nakon njezina mehaničkog uklanjanja, koja je na popisu invazivnih stranih vrsta koje izazivaju zabrinutost u Europskoj uniji, a zabilježena je i u Hrvatskoj.
Analize su provedene radi utvrđivanja energetske iskoristivosti, a istraživani parametri bili su: analiza sadržaja vode, pepela, sadržaji koksa, fiksiranog ugljika, hlapiva tvar te sadržaji celuloze, hemicelulozei lignina, kao i gornja ogrjevna vrijednost vrijednost.
Nakon analiza ulaznih sirovina, provela se piroliza uzoraka pri temperaturi od približno 400 ℃, pri čemu se utvrdio udio proizvedenog biougljena i bioulja (računski). Sastav biougljena se potom analizirao standardnim metodama.

Abstract (english)

Everyday energy needs continue to grow due to the increasing number of world population and economic development. They use large amounts of fossil fuels and as a result greenhouse gases are prodiced, which have a detrimental effect on human health and environment. The use of renewable energy sources can contribute to reducing these consequences, and the greatest contribution is expected from biomass.
Common milkweed (Asclepias syriaca L.) is a perennial herbaceous plant (Asclepiadaceae), which grows up to 2 m in height. In addition to invasive properties, it is used for industrial purposes and is a great honey-like plant.
The objective of this investigation was to determine the energy utilization of invasive plant species of gypsum feathers, which is on the list of invasive foreign species causing concern in the European Union, and was also recorded in Croatia. The analyses were carried out to determine the energy utilization and the following parameters were analysed: water, ash, content of coke, fixed carbon, volatile matter, cellulose and hemicellulose contents as well as the higher calorific value.
After analysis of the raw material, pyrolysis was carried out at a temperature of about 400 ° C, determining the fraction of biocoal and biooil produced. The biocoal composition was then analyzed by the standard methods mentioned.

• Keywords: Asclepias syriaca; obnovljivi izvori energije; biomasa; invazivne vrste; energetska iskoristivost
• Keywords (english): Asclepias syriaca; renewable energy sources; biomass; invasive species; energy utilization
• Language: croatian
• URN:NBN: urn:nbn:hr:204:080652
• Study programme: Title: Organic Agriculture with Agrotourism; Study programme type: university; Study level: graduate; Academic / professional title: magistar / magistra inženjer/inženjerka ekološke poljoprivrede i agroturizma (magistar / magistra inženjer/inženjerka ekološke poljoprivrede i agroturizma)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2018-03-16 10:21:44