Banca de QUALIFICAÇÃO: DANIEL HELENO DE CASTRO

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : DANIEL HELENO DE CASTRO
DATE: 02/02/2022
TIME: 09:00
LOCAL: Campus Nova Gameleira CEFET-MG
TITLE:

Development of a 1D numerical model in GT-POWER to simulate the performance, specific fuel consumption and combustion parameters of a research single-cylinder AVL engine operating with ethanol direct injection

KEY WORDS:

Internal combustion engine, ethanol, biofuels, GT-Power, 1D numerical simulation

PAGES: 85
BIG AREA: Engenharias
AREA: Engenharia Mecânica
SUBÁREA: Engenharia Térmica
SUMMARY:

The growing use of alternative fuels is justified by the relationship between the intensification of global warming and the emission of greenhouse gases, including CO2. In Brazil, a country that is among the largest producers of ethanol, this fuel is an interesting alternative for reducing emissions, since it is widely used for internal combustion engines. When the entire energy chain is evaluated, including the production of fuel, ethanol appears as a clean fuel, with emission results equal to 0g of CO2 per kilometer traveled. This is because the process of photosynthesis in the production of ethanol absorbs the equivalent emissions during the operation of the vehicle powered by this fuel. The use of strategies and studies that make the internal combustion engine more efficient and less dependent on fossil sources is a decisive factor in the world scenario. The present work aims to evaluate the effect of RVC on specific fuel consumption. A study and 1D numerical simulation are carried out in the GT-Power software of a research single-cylinder internal combustion engine, model AVL 5496, with a direct fuel injection system, powered by ethanol, to evaluate the potential for reducing the specific consumption of fuel. fuel as a function of the variation in the volumetric compression ratio. The model was calibrated and validated from experimental data for 3000 and 4500 rpm in the WOT condition and volumetric compression ratio of 11.5:1. The differences found between the simulated model and the experimental data were less than 5% for the parameters of PMEI and BMEP. Maximum cylinder pressure, maximum pressure angle, indicated torque and ISFC, demonstrating model validation and correct correlation of boundary conditions.

BANKING MEMBERS:
Presidente - FERNANDO ANTONIO RODRIGUES FILHO
Externo à Instituição - HÉLDER ALVES DE ALMEIDA JÚNIOR
Externo ao Programa - MARCIO EXPEDITO GUZZO
Interno - THIAGO AUGUSTO ARAUJO MOREIRA