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doctoral thesis
Model detonantnoga izgaranja u Ottovom motoru
Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2015. urn:nbn:hr:235:076045
Tomić, Rudolf
University of Zagreb
Faculty of Mechanical Engineering and Naval Architecture

Institutional repository: Repository of Faculty of Mechanical Engineering and Naval Architecture University of Zagreb

Cite this document

Tomić, R. (2015). Model detonantnoga izgaranja u Ottovom motoru (Doctoral thesis). Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:235:076045

Tomić, Rudolf. "Model detonantnoga izgaranja u Ottovom motoru." Doctoral thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2015. https://urn.nsk.hr/urn:nbn:hr:235:076045

Tomić, Rudolf. "Model detonantnoga izgaranja u Ottovom motoru." Doctoral thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2015. https://urn.nsk.hr/urn:nbn:hr:235:076045

Tomić, R. (2015). 'Model detonantnoga izgaranja u Ottovom motoru', Doctoral thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, accessed 20 December 2024, https://urn.nsk.hr/urn:nbn:hr:235:076045

Tomić R. Model detonantnoga izgaranja u Ottovom motoru [Doctoral thesis]. Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture; 2015 [cited 2024 December 20] Available at: https://urn.nsk.hr/urn:nbn:hr:235:076045

R. Tomić, "Model detonantnoga izgaranja u Ottovom motoru", Doctoral thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2015. Available at: https://urn.nsk.hr/urn:nbn:hr:235:076045

Metadata
TitleModel detonantnoga izgaranja u Ottovom motoru
Title (english)Model of knock phenomenon in spark ignition engine
AuthorRudolf Tomić
MentorZoran Lulić (mentor)
Committee memberDarko Kozarac (predsjednik povjerenstva)
Committee memberZoran Lulić (član povjerenstva)
Committee memberErnest Bazijanac (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Mechanical Engineering and Naval Architecture
Zagreb
Defense date and country2015-03-06, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
General Mechanical Engineering (Construction)
Universal decimal classification
(UDC)		621 - Mechanical engineering. Nuclear technology. Machinery
Abstract
Detonantno izgaranje je nepoželjna pojava u Ottovom motoru koja nastaje uslijed naglog izgaranja još neizgorjele smjese ispred napredujuće fronte plamena, a visokofrekventne oscilacije tlaka koje pri tome nastaju mogu uništiti motor. Dosadašnjim istraživanjima navedene pojave utvrđeno je da do zapaljenja neizgorjele smjese najčešće dolazi uslijed samozapaljenja njenih vrućih dijelova. Razvojem modela za predviđanje pojave detonantnog izgaranja za 1-D/0-D proračunski model Ottovog motora u kojemu je modelirana temperaturna nehomogenost neizgorjele zone omogućiti će se simuliranje pojava vrućih mjesta u neizgorjeloj smjesi i točnija procjena intenziteta tlačnih oscilacija nastalih detonantnim izgaranjem. Osnova za razvoj i validaciju novog modela su postojeći 3D-CFD rezultati raspodjele temperature u neizgorjeloj smjesi i niz eksperimentalnih podataka o profilu tlaka u cilindru eksperimentalnog CFR motora (engl. Cooperative Fuels Research).
Abstract (english)
Knock is an unwanted phenomenon in the spark-ignition engine generated by a rapid combustion of the end-gas in front of the propagating flame. The high frequency pressure oscillations generated by such rapid end-gas combustion can destroy the engine. Experimental studies of the knock phenomenon have found that the auto ignition of the end-gas occurs due to the presence of the hot spots. The development of a new knock model for 1D/0D spark-ignition engine model, which includes temperature stratification of the unburned zone, will enable the prediction of the hot spots in the end-gas. This will enable accurate prediction of the pressure oscillations caused by the knocking combustion. The basis for the development and validation of the new knock model are the existing 3D-CFD results of the temperature stratification of the unburned zone and a set of experimental pressure traces that were obtained in the CFR engine (Cooperative Fuels Research).
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:235:076045
Study programmeTitle: Mechanical Engineering and Naval Architecture
Study programme type: university
Study level: postgraduate
Academic / professional title: doktor/doktorica znanosti, područje tehničkih znanosti (doktor/doktorica znanosti, područje tehničkih znanosti)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2020-04-24 17:46:59