buletinul institutului politehnic din iaşi - Universitatea Tehnică ...

Bul. Inst. Polit. Iaşi, t. LVIII (LXII), f. 4, 2012 107
alternative fuel mixture can be a future solution applied to vehicle production,
because the hydrocarbon presents very good values, but also, the nitrogen
oxides must be corrected.
4. Conclusions
1. The conclusion we reached after the studies and experimental research
involves following elements: greenhouse gas emission from thermal engine
remain a problem. The vehicle equipped with diesel or spark ignition engine
emitted harmful elements with consequences on human and nature health.
2. In first case, the diesel engine, we monitor the particulate matter and
the opacity along a period and distance, we conclude that the urban Mercedes
bus, which is part of the urban fleet, present normal values, comparing the
values of the same parameters for other vehicle, also present in urban fleet.
3. In the second case, the spark ignition engine, we monitor the exhaust
gases evolution when the engine functioning with fuel mixture, IP50. We
achieved that the engine perform well, and HC present acceptable values,
comparing with functioning with gasoline, but the NOx must be corrected, due
to the higher values than functioning with gasoline.
4. As future research, the function of spark ignition engine with fuel
mixture trough alternative fuel, must present better values for nitrogen oxide.
Acknowledgements. This work was partially supported by the strategic grant
POSDRU/88/1.5/S/50783, Project ID 50783 (2009) co-financed by the European Social
Fund – Investing in People, within the sectarial Operational Programme Human
Resources Development 2007-2013.
This work was also partially supported by the strategic grant
POSDRU/21/1.5/G/13798, inside POSDRU Romania 2007-2013, co-financed by the
European Social Fund – Investing in People.
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