Analysis of Exhaust Gas Composition of Internal Combustion Engines Using Liquefied Petroleum Gas

Abstract

The problems of implementation of liquefied petroleum gas (LPG) supply systems are related with the fact that they are alternative systems used in engines constructed and optimized for work with other kinds of fuel. So assemblers of the systems have to evaluate power losses and at the same time ecological requirements. The experiment is devoted to the analysis of gas composition of engines working at different modes in order to specify the particularity of LPG system tuning and to obtain data for the evaluation of environmental pollution by numerical car dynamics models. It is estimated that the algorithms of current LPG systems balance between ecological requirements and optimization of external characteristics of engines, and the gas systems are characterized by a great inertia. Also, it is determined that more precise tuning algorithms must be constructed, and more tuning points and tuning, when an engine works in standard modes, must be foreseen.

Evaluating Working Quality of Tractors by Their Harmful Impact on the Environment/Traktorių Darbo Kokybės Vertinimas Pagal Jų Žalingą Poveikį Aplinkai/Оценка Рабочего Качества Тракторов По Их Вредному Влиянию На Окружающую Среду

“…Investigation results show Slavinskas 2002, 2006;Vaitiekūnas and Banaitytė 2007;Mockus et al 2006;Lebedevas et al 2006;Nwafor … 2004;Saving … 2001) that CO 2 emission has a direct dependence on fuel consumption. Increase of fuel consumption evenly increases CO 2 emission.…”

“…Noxiousness of exhaust gases depends on engine working conditions (Šimatonis and Tiškevičius 1994; Slavinskas 2002, 2003;Baltrėnas et al 2004;Automotive… 2000;Altin et al 2001;Tat and Gerpen 2004;Vaitiekūnas and Banaitytė 2007;Mockus et al 2006;Lebedevas et al 2006).…”

Comparison of Performance Characteristics of LPG and Gasoline - Fuelled Single Cylinder SI Engine

“…LPG is a byproduct of both petroleum refining and natural gas processing plants. Liquefied petroleum gas (LPG) is any mixture of several hydrocarbon compounds that are gases at normal room temperatures and pressures but can be liquefied under moderate pressure at atmospheric temperatures [4,5]. LPG has many properties that make it useful as a vehicle fuel.…”

Dynamic Model of a Vehicle Moving in the Urban Area / Transporto Priemonės Judėjimo Mieste Dinaminis Modelis / Динамическая Модель Движения Транспортного Средства В Городе

“…Taking the factors above into consideration, dynamic characteristics of a vehicle, engine or engine's working modes are identified and the composition of exhaust gas, fuel consumption, noise level and other parameters related with the automobile movement in an urban area are prognosed more accurately. The use of this dynamic model also enables to plan the improvement of over ground vehicles' ecological characteristics, to evaluate the efficiency of power plants run on alternative fuel, to develop energy saving algorithms of the vehicle's movement (Mockus et al 2006). In the next stage, it is planned to select sample individual vehicle models, to modify them according to the changing composition of a transport flow thereby reducing the number of factors in the flow model and to present more accurate generalizing characteristics.…”