Eventos Anais de eventos
ENCIT 2018
Brazilian Congress of Thermal Sciences and Engineering
INFLUENCE OF THE VARIATION OF THE INJECTION POINT IN THE PERFORMANCE OF A DIESEL ENGINE
Submission Author:
Rafaela Boaventura , PA
Co-Authors:
Rafaela Boaventura, Moisés Sousa
Presenter: Rafaela Boaventura
doi://10.26678/ABCM.ENCIT2018.CIT18-0174
Abstract
Diesel engines, currently in operation in the Amazon region, were developed to operate at atmospheric conditions different from those found in the Amazon region, and for fuels different from those currently offered in Brazil. It is therefore necessary to modify the operating conditions and possibly some constructive parameters to lower the current specific fuel consumption. The internal combustion engines with compression ignition have gone through many technological advances aimed at improving their efficiency, reducing consumption and reducing environmental impacts. These machines currently have an electronic control system composed of sensors and actuators, which control the performance in real time according to the working condition. All these advances were made in two different ways: experimental methods or computer simulation. The experimental methods are more accurate, however they have high costs. Computational simulation has a lower cost and works with several parameters simultaneously. This implies a more comprehensive view of the general behavior of the system and produces a starting point and arrival for the experiments, reducing the costs of the project. This work aims at the numerical simulation of the combustion process in the laboratory engine and the comparison of the results with the experiments obtained in this engine, operating with diesel B10. Then, changes in operating conditions will be simulated in order to reduce the specific fuel consumption and identify a new point of operation of the engine.
Keywords
Diesel engine, Simulation, Specific fuel consumption
