Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
EXPERIMENTAL AND NON INVASIVE FUEL CONSUMPTION MEASUREMENT FOR INTERNAL COMBUSTION ENGINES BASED ON OTTO CYCLE
Submission Author:
Emerson Alves da Silva , MG
Co-Authors:
Emerson Alves da Silva, Jose Baeta, Rodrigo Fonseca, Antônio Maia, André Guimarães Ferreira
Presenter: Emerson Alves da Silva
doi://10.26678/ABCM.COBEM2019.COB2019-1329
Abstract
This article describes a new methodology for measuring fuel consumption of internal combustion engines based on the Otto cycle and with Common Rail Injection System. The proposed technique requires only the measurement of the electrical signal pulses sent from the electronic injection system. The whole process does not demand any electrical, circuit breakage or direct contact with the fuel flow. The measuring system was built employing low-cost components, and its accuracy was evaluated using a Single Cylinder Research Engine (SCRE). It was performed a set of 32 tests, considering four different engine loads, four different speeds and two different fuels. The results obtained were superior to those achieved with electromechanical sensors, providing a fuel consumption measurement with a total percent error inferior to 1.5% to Ethanol (E100) and inferior to 2.5% to blend of Gasoline end Ethanol (E27). As the methodology is based only on the electrical pulses, it can be considered applicable to an unlimited range of flow rate and pressure.
Keywords
fuel measurement, Fuel consumption, Otto cycle, measurement of injection time
