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ENCIT 2018
Brazilian Congress of Thermal Sciences and Engineering
EVALUATION OF THE THERMOMECHANICAL PERFORMANCE OF A COMPRESSION IGNITION ENGINE USING ADDITIVE BIODIESEL
Submission Author:
ANTONILSON CONCEIÇÃO , PA
Co-Authors:
Leandro Figueiredo, Hendrick Zarate Rocha, Manoel Fernandes Martins Nogueira, Eraldo Cruz dos Santos, João Gabriel Bezerra da Silva
Presenter: ANTONILSON CONCEIÇÃO
doi://10.26678/ABCM.ENCIT2018.CIT18-0836
Abstract
In the northern region of Brazil a large part of the electric energy is obtained from petroleum by burning these fuels in internal combustion engines (MCI). These power generation systems are called Thermoelectric Power Plants (UTE). However, the production of electricity by the UTE's has a high cost of production, which is directly related to dependence on fossil fuels. An alternative that is currently being used to reduce this dependence is the use of Biodiesel. This work aimed to evaluate the thermomechanical performance of Diesel cycle engines operating with several mixtures of marine (B0) diesel and Biodiesel additives (B100), the following B0, B5, B7 and B10 fuels were used. The methodology used in this work began with the preparation and characterization of the fuels (PCS, PCI) in the Labmotor, and then the fuels were tested in a diesel generator group Yanmar, direct injection, four cylinders and 20 kVA. The loads chosen to perform the test were 30, 50, 70 and 100% of the nominal load. The results show that B5 fuel was the one that obtained the best efficiency, specific consumption and lower level emissions, compared to the pure diesel (B0), which was the reference parameter, although the biodiesel produced delay of the combustion the use of the additive raising the PCI has helped to alleviate this problem. This effect of the combustion delay is visualized on the B10 fuel, which despite the use of the additive obtained the worst efficiency and emission indices due to the increase of the biodiesel content in its composition.
Keywords
diesel engines, biodiesel, Thermoelectric Plants, Biofuels
