Advanced combustion concepts with innovative waste derived fuels

doctoral thesis

Urban Žvar Baškovič (Author), Tomaž Katrašnik (Mentor), Stefan Jakubek (Co-mentor)

Abstract

Numerical and experimental methodologies were developed in the dissertation with the goal of improving internal combustion engine control and decreasing engine-out exhaust emissions leading to mitigated impact on the environment. An innovative numerical method for simultaneous determination of the pressure and the top dead centre offset, which significantly reduces computational time compared to other methods, is presented in the numerical part of the dissertation. The experimental part of the dissertation comprises: - Development of a novel approach for the utilization of a pure tire pyrolysis oil (TPO) in a turbocharged and intercooled internal combustion engine without any hardware modifications with the introduction of the pilot injection. - Establishment of a partially premixed combustion (PPC) concept with a direct injection of diesel fuel, which also represents a benchmark for a novel fuel (TPO - a representative of low reactivity fuels) being assessed in the PPC. - Development of a methodology for the utilization of hydrotreated vegetable oil (HVO)/gasoline mixture in PPC. - Development of a methodology for establishing reactivity controlled compression ignition operation leading to a reduction of particulate matter and NOx emissions below EURO 6 levels without utilization of exhaust after-treatment systems at medium-load engine operation in a non-modified combustion chamber.

Keywords

dissertations;doctoral thesis;internal combustion engines;advanced combustion concepts;alternative fuels;pollutants emissions;0D thermodynamic calculation;

Data

Language:	English
Year of publishing:	2019
Typology:	2.08 - Doctoral Dissertation
Organization:	UL FS - Faculty of Mechanical Engineering
Publisher:	[U. Žvar Baškovič]
UDC:	621.431+519.61(043.3)
COBISS:	16530459
Views:	1684
Downloads:	353
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	Slovenian
Secondary title:	Napredni procesi zgorevanja z uporabo inovativnih goriv, pridobljenih iz odpadkov
Secondary abstract:	V sklopu disertacije so bile razvite numerične in eksperimentalne metodologije s ciljem izboljšanja nadzora nad delovanjem motorja z notranjim zgorevanjem in znižanja izpustov onesnažil, kar vodi k zmanjšanju vpliva na okolje. V prvem delu disertacije je predstavljena inovativna numerična metoda za hkratno določitev absolutnega tlaka v valju in položaja zgornje mrtve lege bata, ki bistveno skrajša računske čase v primerjavi z ostalimi objavljenimi metodami. Eksperimentalni del disertacije obsega: - Razvoj inovativnega pristopa za uporabo 100% piroliznega olja iz odpadnih pnevmatik v prisilno polnjenem motorju s hladilnikom polnilnega zraka brez modifikacij strojnih komponent samo z uvedbo pilotnega vbrizga. - Vzpostavitev inovativnega zgorevalnega načina z delno homogenizirano delovno zmesjo (ang. Partially Premixed Combustion - PPC) z neposrednim vbrizgom dizelskega goriva, kar predstavlja osnovo za analizo primernosti uporabe piroliznega olja iz odpadnih pnevmatik v PPC načinu. - Razvoj metodologije za uporabo mešanice hidrogeniziranega rastlinskega olja in bencina v PPC načinu. - Razvoj metodologije za vzpostavitev inovativnega zgorevalnega koncepta s kompresijskim vžigom in krmiljenjem poteka zgorevanja na podlagi reaktivnosti delovne zmesi (ang. Reactivity Controlled Compression Ignition - RCCI), ki omogoča doseganje izpustov trdnih delcev in dušikovih oksidov pod mejnimi vrednostmi, določenimi s trenutno veljavnim emisijskim standardom EURO 6 brez uporabe sistemov za naknadno obdelavo izpušnih plinov.
Secondary keywords:	disertacije;doktorske naloge;motorji z notranjim zgorevanjem;napredni zgorevalni koncepti;alternativna goriva;izpusti onesnažil;0D termodinamska analiza;
Type (COBISS):	Doctoral dissertation
Study programme:	0
Thesis comment:	Univ. v Ljubljani, Fak. za strojništvo
Pages:	XXVI, 164 str.
ID:	11070101