A comparative study of smoke emissions between idling regimes and high load regimes for a standard diesel direct injection car

Abstract

The paper presents a study of smoke emissions for car Dacia Solenza 1.9D-SDI (63HP) which was produced by Renault in Romania. A similar engine can also be found on the Kangoo Express and Kangoo Passenger cars respectively. Smoke emissions are analyzed comparatively, between idling regimes and load regimes. Also are presented variations of engine speed, accelerator pedal position, fuel flow injected, automotive speed, which are taken using OBD II connection and Autocom CARS CDP+ Scanner. To simulate the load regimes chassis dynamometer V-Tech Dyno VT-2/B1 was used. A module for measuring the opacity of the exhaust gases was used, which is in the gas analyzer Ultimax 600. In graphics are shown variations of the opacity of exhaust gases between idling regimes and load regimes considered. The different pollutions levels with smoke are analyzed between idling regimes and low loads, respectively high loads. Conclusions about the level of pollution are stated. Also are make recommendations for operating regimes of the car, so as to reduce the level of pollution.