Effects of Oxygenated Gasoline on Fuel and Air Mass Flow Rates and Air-Fuel Ratio

Abstract

The effects of excess feeding oxygen to the fuel-air mixture on air and fuel mass flow rates and also on air-fuel ratio are investigated here experimentally. This study concerned with the effects of injecting pure oxygen quantity to the mixture of fuel and air before interring the combustion chambers. It is found that the mass flow rate of fuel with the oxygen feeding is less than that of with no oxygen feeding at some specific values of engine speeds and the same thing was found for air mass flow rate. The air-fuel ratio also is less with considerable values in the case with oxygen feeding than that with no oxygen samples. Also this technique can be used partially, in some conditions oxygen can be feed into the combustion chambers to increase engine performance.

Investigation of the Performance and Emission Characteristics of Biodiesel Fuel Containing Butanol under the Conditions of Diesel Engine Operation

“…There is no significant difference between b e when operating with new-type fuel mixtures or with conventional fossil diesel fuel in the case of low and average load modes. It is reasonable to expect analogous reduction of the draft property by 3% and 8%, respectively, when using biofuel RBE and RME …”

“…As mentioned above, the operational properties of fuel and the efficiency of diesel engine operation are highly influenced by the quantity of oxygen in the fuel. , The oxygen content in fuel should not exceed 19% . Oxygen content in pure butanol is higher and equals 21.6% (see Table ); therefore, before engine tests it was necessary to evaluate oxygen content if fuel mixtures contained butanol and rapeseed oil butyl esters.…”