Monografia_Mecânica
URI permanente para esta coleçãohttps://ri.ifam.edu.br/handle/4321/508
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Resultados da Pesquisa
Item Utilização do gás natural veicular no Brasil(2021-05-21) Silva, Wallace Pereira da; Costa, José Francisco de Caldas; http://lattes.cnpq.br/5703032306296974; Costa, José Francisco de Caldas; http://lattes.cnpq.br/5703032306296974; Lima, Placido Ferreira; http://lattes.cnpq.br/0865439005714077; Chagas, Sidney Assis; http://lattes.cnpq.br/1705258854443084Currently, several factors stimulate the search for an alternative fuel for motor vehicles. A possible scarcity of oil over the years due to the demand for fuels generated by the constant increase of the vehicle fleet on the streets, the increase in the value of fuels that has been constant in recent months and the concern with the emission of pollutants in the environment, they are important aspects that lead us to search for measures that can minimize these factors. In this scenario, vehicular natural gas emerged as an effective alternative to reduce dependence on oil, in addition to being a less aggressive source to the environment. Therefore, the present work has as main objective to investigate which are the possible uses of vehicular natural gas and its advantages for Brazil. And as specific objectives: to show whether the use of CNG reveals a trend of economic growth for Brazil; report the environmental advantages of using GNV; analyze Brazil's experience in the GNV market. The methodology used in this research consists of a bibliographic search, which uses as a base the work of other authors on the same theme, using the following databases: Scientific Electronic Library Online repository (Scielo), Google Scholar and the website of CAPES journals. According to the results obtained during the research, it was observed that the conversion of vehicles to a CNG-powered engine increases the engine's useful life, as it is a clean and dry fuel due to its more complete burning than other fuels. Being safer, cleaner and less toxic, when compared to others, producing a cleaner and more uniform burning, therefore, it is considered to have little impact on the environment.Item Projeto de um sistema de refrigeração e climatização por adsorção que utiliza o par de trabalho carvão ativado e etanol(2021-04-08) Silva, Francisco Mikael Alves da; Soares, José Josimar; http://lattes.cnpq.br/8049341977402653; Soares, José Josimar; http://lattes.cnpq.br/8049341977402653; Costa, José Francisco de Caldas; http://lattes.cnpq.br/5703032306296974; Rodrigues Filho, João Nery; http://lattes.cnpq.br/3860803328978892This project seeks to carry out the design of an alternative cooling system, where all the components of a laboratory scale prototype of an adsorption cooling system using the activated carbon and ethanol working pair will be dimensioned. The proposed system uses the principle of a four-motor engine to replace the compressor used in conventional air conditioning equipment by steam compression. Therefore, its operation does not depend on electrical energy, as it uses solar energy and uses refrigerant with low environmental impact. In the search for better performance, a new reactor will be designed, by increasing the contact area and reducing the thermal inertia of the reactor. Thus, with the making of this system, it will be possible to obtain a result compatible with the state of the art of models with the same technical characteristics and operating conditions.