Preliminary calculation of CO2 emissions from an internal combustion engine based on the equivalent chemical formula of the fuel used

Abstract

In this paper, we presents the results of building and solving chemical exercises to calculate the amount of CO2 emitted from an internal combustion engine when using A95 gasoline, A92-E5 gasoline, diesel fuel. The exercises are built on the amount of fuel used and on the power of the engine. The chemical composition of the fuels is assumed to be closeto reality and the data about combustion heat, engine power, successful energy conversion efficiency, physicochemical parameters of the fuel, ... are obtained from reputable sources. As a result, we has built six different types of exercises and based on theoretical calculations showing that when using gasoline fuel A92-E5 gives the smallest CO2 emissions for the same fuel volume. But with the type of engine when using A95 gasoline gives the least CO2 emissions. Specifically, with 10 liters of A92 -E5 gasoline fuel completely burned, the amount of CO2 emitted is about 22.41 kg, while with a gasoline engine with a capacity of 40 kW, the useful work efficiency is 30% will consume 22.27 (liters) of A95 gasoline and emit about 51.56 (kg) of CO2.