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BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI
Publicat de
Universitatea Tehnică „Gheorghe Asachi“ din Iaşi,
Tomul LVIII (LXII), Fasc. 4, 2012
Secţia
CONSTRUCŢII DE MAŞINI
EMISSION LEVEL FROM INTERNAL COMBUSTION ENGINE
USING FOSIL AND ALTERNATIVE FUELS
BY
IOAN HITICAS ∗ , LIVIU MIHON, DANILA IORGA and WALTER SVOBODA
Received: 30 March 2012
Accepted for publication: 14 April 2012
Politehnica University of Timişoara,
MMUT Department
Abstract. The start of the propulsion engines, coming as a result of
technological evolution, revealed quickly different problems like comfort, noise,
performances and, not least, exhaust gases. Appearance of compression ignition
engines and spark ignition engine, technology that replaces the animal traction,
have been received very well by engineering society of that period, but the
problem of exhaust gases was and remains an issue to be solved. The vehicle
emit different pollutant elements through the tailpipe, like carbon dioxide (CO2),
carbon monoxide (CO), hydrocarbon (HC), nitrogen oxides (NOx), volatile
organic compounds (VOC’s), particulate matter (PM) and other elements, as a
consequence of burning the fossil fuels inside the combustion chamber. The
atmosphere is continuously changing due to all this pollutant elements,
producing damages on human and earth health. The paper present the studies and
experimental research concerning the nature of exhaust gases, for vehicles
equipped with internal combustion engine, realized in “Politehnica” University
of Timisoara, Faculty of Mechanics, taking into account the figures of exhaust
gases for vehicle functioning with diesel as fuel, and vehicle with spark ignition
engine using gasoline and alternative fuel as energy source. The conclusion we
reached are: diesel engines emit less light hydrocarbons than gasoline engines,
and the spark ignition engine working with alternative fuels – namely isobutene
(IP50), emit less nitrogen oxides than gasoline as fuel.
Key words: CO2, pollutant emission, spark ignition engine, diesel engine,
alternative fuels.
∗ Corresponding author: e-mail: idhiticas@yahoo.com