The production of engines using Turbocharged Stratified Injection (TSI)
technology has increased rapidly in recent years. In addition, the use of
liquefied petroleum gas (LPG), which is an environmental and economical
fuel, is increasing in vehicles. While LPG cannot be used in TSI engines
before, LPG kits have become applicable to these types of engines with the
development of technology. TSI is used to provide the first ignition of
liquid fuel in engines. Therefore, liquid fuel is sprayed from the injector
and then added onto LPG to burn LPG. Thus, unlike other systems, LPG in use
with the increase in efficiency is also provided. Alcohols (ethanol,
methanol, butanol etc.) biomass fuels are alternative fuel characteristics.
There are many studies on the use of alcohols in internal combustion
engines. What distinguishes this study is that TSI is used as a pilot fuel
to burn LPG in an engine. In the study, a vehicle with a TSI motor equipped
with prins LPG system was used. For this purpose, the effects of 5% (E5),
10% (E10) and 20% (E20) ethanol addition on engine power, engine torque and
exhaust emissions were investigated. The vehicle experiments were carried
out by increasing the engine speed from 500 rpm to 5500 rpm in the chassis
dynamometer. The findings showed that with E10+LPG fuel, there is an
increase in engine power and engine torque. There is also a reduction in all
CO, CO2 and HC emissions.