Primjena dvogorivnog izgaranja u međunarodnom pomorskom transportu

undergraduate thesis

• Title (english): Application of dual-fuel combustion in international maritime transport
• Author: Jakov Markovinović
• Mentor: Momir Sjerić (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2025-02-25, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering

Abstract

Radi ekoloških i zdravstvenih razloga smanjenje emisija štetnih tvari je cilj koji je zadan svim motorima s unutarnjim izgaranjem, što obuhvaća i dizelske brodske motore namijenjene za pogon trajekata na međunarodnim linijama. Potpisivanjem konvencija poput MARPOL, velik broj država usvojio je određene granice emisija štetnih tvari kao što su ugljikov dioksid i dušikovi oksidi. U radu je razmatrana primjena alternativnih goriva metanola i vodika te je razmotrena prenamjena motora na rad s ovakvim gorivima.
Korištenjem programskog paketa AVL BOOST izrađen je i kalibriran simulacijski model originalnog pogonskog sustava broda. Utjecaji alternativnih goriva na značajke štetnih emisija analizirani su simuliranjem dvogorivnog izgaranja s različitim udjelom supstituiranog dizelskog goriva. Rezultati rada motora prikazani su topografskim dijagramima. Nakon definiranja reprezentativnog plovnog ciklusa trajekta i otpora motoru koji se javljaju tokom plovidbe izračunate su konkretne mase štetnih tvari ispušnih plinova koje trajekt na svojoj plovidbi uzrokuje. Pokazana je ovisnost ispušnih emisija o udjelu supstituiranog dizelskog goriva i važnost pravilno odabranog supstituiranog udjela.

Abstract (english)

Because of environmental and health issues, reducing emissions of harmful substances is a goal set for all internal combustion engines, including diesel marine engines intended for driving ferries on international routes. By signing conventions such as MARPOL, a large number of countries have adopted certain limits for harmful exhaust emissions such as carbon dioxide and nitrogen oxides. This paper considers the use of alternative fuels such as methanol and hydrogen with consideration of measures needed to succesfully operate engines with such fuels.
Using the AVL BOOST software package, a simulation model of the original ship's propulsion system was created and calibrated. The effects of alternative fuels on harmful emission characteristics were analyzed by simulating dual-fuel combustion with different proportions of substituted diesel fuel. The results of engine operation are shown in topographic diagrams. After defining a representative ferry operation cycle and engine resistance that occur during voyage, the specific masses of harmful exhaust gases that the ferry causes during its voyage were calculated. The dependence of exhaust emissions on the proportion of substituted diesel fuel and the importance of a properly selected substituted proportion are shown.

• Keywords: AVL BOOST; štetne emisije; ugljikov dioksid; dušikovi oksidi; dvogorivno izgaranje; metanol; vodik
• Keywords (english): AVL BOOST; harmful emissions; carbon dioxide; nitrogen oxides; dual-fuel combustion; methanol; hydrogen
• Language: croatian
• URN:NBN: urn:nbn:hr:235:053961
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2025-02-22 13:08:01