International Journal of Advances in 
Engineering & Technology
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ISSN: 2231-1963

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S.No. Article Title & Authors (Volume 12, Issue 2, April - 2019) Page Nos. Status
1. Determination of the Deflector Wall Thickness and Influence of the Maximum Angle of Shock Wave on Heat Exchange in the Combustion Gases of Solid Particles
Elcio Nogueira; Paulo Gilberto de Paulo Toro
International Journal of Advances in Engineering & Technology (IJAET), Volume 12 Issue 2, pp. 18-27, April 2019.
When a rocket engine is burned, it is necessary to release the combustion products away from the burning area so as not to damage the equipment and structures located on the side. This work presents a flame deflector and combustion gas design in launching platform. Such a device is intended to divert the exhaust jets and absorb a fraction of the high rate of existing heat, due to the high temperature of gases from the burning of fuel in the rocket engine. In this type of problem, the determination of the thickness of the deflector, and the material to be used in your manufacturing, are determining factors for the integrity of the launch pad. In this sense, we present in this work the temperature distribution along the deflector thickness, considering, for analysis, several materials in your construction. An analysis of the main parameters responsible for the heat exchange is carried out when a supersonic combustion jet, consisting of particles of gas and alumina, impacts the inclined surface of the deflector on a launching platform. The results show that, in relation to the location of shock wave detachment, it is possible to use the higher incidence angles when the exhaust gases contain a fraction of a solid component. This is a result that presents very important practical consequences: increased angles of incidence of jet are desirables, once they contribute to a lower launch platform and therefore less cost to the project.
18-27 Online
2. Dispersion Index of Urban Areas Applied to Large Brazilian Cities
Tania Michel Fuga, Alcindo Neckel and Luciana Oliveira Fernandes
International Journal of Advances in Engineering & Technology (IJAET), Volume 12 Issue 2, pp. 28-36, April 2019.
The overall objective of this study is to assess the Dispersion Index (DI) of the city of Porto Alegre, located in the state of Rio Grande do Sul (RS), Brazil. In order to design its methodology, an analysis of the urban spatial configuration to verify population distribution through the use of DI was chosen. The results obtained revealed high values of dispersion for Porto Alegre, with a strong tendency to increase the DI. Thus, it is possible to demonstrate Urban Dispersion as a way to strengthen analyses of urban spatial configuration, which addresses distance and population density issues, and follows criteria to define course of actions of public policies capable of making urban mobility more sustainable.
28-36 Online
3. Experimental Validation of Thermophysical Properties of Ag-Refrigeration Bitzer Oil BSE170 Nanofluid
Ahmadreza Khorramabadi, Alireza Raouf Panah
International Journal of Advances in Engineering & Technology (IJAET), Volume 12 Issue 2, pp. 18-27, April 2019.
Nanofluids have marked their place in the market of heat transfer fluids as superior coolants due to having optimal thermal properties and potential. Nanofluids are a new kind of fluids generated by suspending nanoparticles in base fluids. They have been found to possess enhanced thermophysical properties such as thermal conductivity, heat transfer coefficient, viscosity, and density. In this paper, various aspects of nanofluids including synthesis of nanofluids, experimental and analytical studies on the thermal conductivity and viscosity were investigated. The results showed the thermophysical properties have different parameters for each parameters. The refrigeration oil at various temperature ranging from 40-70°C under different volume concentrations (0.1, 0.2 & 0.5%) of nanoparticles. All experimental equipment are from famous brand in worldwide and will be informed further.
36-44 Online
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