Št. zadetkov: 12
Izvirni znanstveni članek
Oznake:
tehnologije avtobusnih pogonskih sklopov;trenutni plinski in PM10 izpusti;vozni cikel v realnem svetu;bus powertrain technologies;instantaneous gaseous and PM10 mass emissions;real-world driving cycles;
Air quality in urban areas is strongly influenced by exhaust emitted by the public transport fleet. The aim of this study was to analyze benefits in the fuel consumption, fuel costs and exhaust emissions when replacing baseline diesel fueled EURO III city buses by the compressed natural gas (CNG)-fu ...
Leto:
2018
Vir:
Fakulteta za strojništvo (UL FS)
Izvirni znanstveni članek
Oznake:
dvoconski termodinamski model;0D modeliranj;tvorba NOx;dizelski motorji;kemijska kinetika;two zone modeling framework;0-d modeling;NOx formation;diesel engines;chemical kinetics;
This paper presents a control-oriented thermodynamic model capable of predicting nitrogen oxides (NOx) emissions in diesel engines. It is derived from zero-dimensional combustion model using in-cylinder pressure as the input. The methodology is based on a two-zone thermodynamic model which divides t ...
Leto:
2018
Vir:
Fakulteta za strojništvo (UL FS)
Izvirni znanstveni članek
Oznake:
motorji z notranjim zgorevanjem;termodinamske analize;zamik zgornje mrtve lege bata;zamik tlaka v valju;algoritem izračuna zamika;internal combustion engines;thermodynamic analysis;TDC offset;pressure offset;offset correction algorithm;
An innovative computationally efficient method for the simultaneous determination of top dead centre (TDC) offset and pressure offset is presented. It is based on characteristic deviations of the rate of heat release (ROHR) that are specific for both offsets in compression phase and expansion phase ...
Leto:
2017
Vir:
Fakulteta za strojništvo (UL FS)
Izvirni znanstveni članek
Oznake:
diesel engines;FIR filters;harmonics;spectral analyses;
This study proposes a novel methodology for designing an optimum equiripple finite impulse response (FIR) filter for processing in-cylinder pressure traces of a diesel internal combustion engine, which serve as inputs for high-precision combustion analyses. The proposed automated workflow is based o ...
Leto:
2017
Vir:
Fakulteta za strojništvo (UL FS)
Izvirni znanstveni članek
Oznake:
tire pyrolysis oil;compression ignition engines;exhaust gas recirculation;gaseous emissions;injection strategy;particulate matter;
A pure tire pyrolysis oil produced from waste tires was utilized in a modern 4-cylinder, turbocharged and intercooled, automotive Diesel engine. Due to its low cetane number, cetane improvers, external energy addition or increased compression ratios are generally required for its use in Diesel engin ...
Leto:
2017
Vir:
Fakulteta za strojništvo (UL FS)
Izvirni znanstveni članek
Oznake:
tire pyrolysis oil;diesel engines;injection strategy;thermodynamic parameters;emissions;
Tire pyrolysis oil (TPO) represents a promising waste-derived fuel for Diesel engines with its main deficiency being lower cetane number compared to Diesel fuel. Until now, successful utilization of the TPO in Diesel engines was possible only by increasing its cetane number, increasing compression r ...
Leto:
2017
Vir:
Fakulteta za strojništvo (UL FS)
Izvirni znanstveni članek
Oznake:
compression ignition engine;low temperature combustion;partially premixed combustion;tire pyrolysis oil;engine control;combustion parameters;emissions;
In the presented study, low temperature combustion was established with a direct injection of diesel fuel being a representative of high reactivity fuels and tire pyrolysis oil being a representative of low reactivity fuels. Tire pyrolysis oil was tested as a potential waste derived fuel for low tem ...
Leto:
2018
Vir:
Fakulteta za strojništvo (UL FS)
Izvirni znanstveni članek
Oznake:
diesel engines;combustion modelling;fuel injection;computational fluid dynamics;general gas phase reactions;coherent flame model;sprays;
To explore the influence of fuel injection strategy on the combustion process, the Computational Fluid Dynamics (CFD) simulations were performed, and simulation results were validated against the experimental data measured at different rail pressures and injection timings. The experiments were condu ...
Leto:
2019
Vir:
Fakulteta za strojništvo (UL FS)
Izvirni znanstveni članek
Oznake:
low temperature combustion;reactivity controlled compression ignition;waste-based fuels;hydrotreated vegetable oil;low swept volume;internal combustion engines;emissions;
This article demonstrates a feasible approach towards minimizing negative impact of combustion, which comprises low net carbon emissions operation of internal combustion engines while achieving ultra-low engine-out exhaust emissions. Ultra-low emission operation was achieved by combining Reactivity ...
Leto:
2021
Vir:
Fakulteta za strojništvo (UL FS)
Izvirni znanstveni članek
Oznake:
osebna vozila;komprimiran zemeljski plin;bencinsko gorivo;Real Driving Emissions RDE;Portable Emission Measurement System PEMS;light-duty vehicle;CNG;gasoline;
On-road exhaust emissions of a Euro 5 factory bi-fuel CNG/gasoline light-duty vehicle equipped with the TWC were assessed considering the Real Driving Emissions (RDE) guidelines. The vehicle was equipped with a Portable Emission Measurement System (PEMS) that enabled the measurement of THC, CO, NOx, ...
Leto:
2017
Vir:
Fakulteta za strojništvo (UL FS)