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Advisor(s)
Abstract(s)
Esta dissertação consiste na automatização do cálculo de um sistema de produção de trabalho
motor alimentado a gaseificação da madeira. O projeto é destinado a regiões remotas
e/ou de difícil acesso a combustíveis fósseis, voltada para uma produção descentralizada de
eletricidade ou trabalho. O sistema de gaseificação é responsável por gerar o gás que será
utilizado como combustível para o motor, e consiste em três componentes: umgaseificador
do tipo downdraft, um permutador de calor por convecção natural e uma unidade filtrante.
Os modelos utilizados para os componentes do sistema são os mais simples o possível para
que as próprias pessoas possam ser capazes de construí-los e fazer sua manutenção. Criouse
uma base de dados contendo 20 faixas de dimensões do conjunto, capaz de fornecer dimensões
que produzam até um máximo de 101.79 m3/h de gás. Foi criado um algoritmo
que recebe os valores de cilindrada, rotação de trabalho e eficiência volumétrica do motor
e cruza esses parâmetros com a base de dados para fornecer os desenhos técnicos com as
principais dimensões dos componentes do sistema. Para um poder calorífico do gás de 4.8
MJ/m3, o sistema de gaseificação pode fornecer de 5.9 a 135.72 kW de potência. A máxima
quantidade de gás gerada, a quantidade de biomassa consumida e o volume de biomassa
necessário foram calculados na base dados e também são informados. Tudo isso é executado
por umprograma que foi disponibilizado emforma de um site público. A programação
foi feita com linguagemdo tipo web front-end: HTML; CSS; e JavaScript.
This dissertation consists in a calculus automation of an engine power system supplied by wood gasification. The project is focused on areas where the access to provide fossil fuels is difficult, aiming decentralised generation of electricity or work. The gasification system generates the gas that will be used as engine fuel, and it’s formed by three components: a downdraft gasifier; a natural convection heat exchanger; and a filter unit. The model used for the system components are as simple as possible, so that people themselves are able to build and maintain it. A database containing 20 ranges of system dimensions was created, being able to provide dimensions that produce up to a maximum of 101.79 m3/h of gas. An algorithm that gets the values of displacement, working rotation and volumetric efficiency of the engine and crosses with the database to provide the technical drawings with themain dimensions of the system components was created. The gasification system can provide 5.9 to 135.72 kW of power for a gas heating value of 4.8 MJ/m3. The maximum amount of gas generated, the amount of biomass consumed and the volume of biomass required were calculated in the database and are also provided. All of this is executed by a program that was made in the formof a public site. Programmingwas done usingweb front-end language: HTML; CSS; and JavaScript.
This dissertation consists in a calculus automation of an engine power system supplied by wood gasification. The project is focused on areas where the access to provide fossil fuels is difficult, aiming decentralised generation of electricity or work. The gasification system generates the gas that will be used as engine fuel, and it’s formed by three components: a downdraft gasifier; a natural convection heat exchanger; and a filter unit. The model used for the system components are as simple as possible, so that people themselves are able to build and maintain it. A database containing 20 ranges of system dimensions was created, being able to provide dimensions that produce up to a maximum of 101.79 m3/h of gas. An algorithm that gets the values of displacement, working rotation and volumetric efficiency of the engine and crosses with the database to provide the technical drawings with themain dimensions of the system components was created. The gasification system can provide 5.9 to 135.72 kW of power for a gas heating value of 4.8 MJ/m3. The maximum amount of gas generated, the amount of biomass consumed and the volume of biomass required were calculated in the database and are also provided. All of this is executed by a program that was made in the formof a public site. Programmingwas done usingweb front-end language: HTML; CSS; and JavaScript.
Description
Mestrado de dupla diplomação com o Centro Federal de Educação Tecnológica Celso Suckow da Fonseca - CEFET/RJ
Keywords
Sistema de gaseificação