Múltiplos estados estacionários em um reator de mistura não-isotérmico
The present work aimed to study the Multiple Steady States in a non- isothermal CSTR, considering the modeling of this reactor for different reactional circumstances, using data from RAWLINGS and EKERDT (2015). The existence of Multiple Steady States in a process is an important subject and it requi...
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| Formato: | bachelorThesis |
| Idioma: | pt_BR |
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Universidade Federal do Rio Grande do Norte
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| Endereço do item: | https://repositorio.ufrn.br/handle/123456789/38703 |
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| Resumo: | The present work aimed to study the Multiple Steady States in a non- isothermal CSTR, considering the modeling of this reactor for different reactional circumstances, using data from RAWLINGS and EKERDT (2015). The existence of Multiple Steady States in a process is an important subject and it requires special care in its study, since every point at which stability is achieved may have a different mathematical identity. A detailed examination of the equations defining the Multiple Steady States was carried out for subsequent simulations in computer programs. These simulations were performed with data from the literature and showed different cases. Success was obtained and results were presented, proving the existence of the Multiple Steady States and emphasizing their dependence on the reaction parameters. The first simulation was performed as a comparison, since it was necessary to graphically display a single steady state to be able to identify multiples of them. The second case, despite the lack of quantitative data, clearly showed the 3 stationary points through the intersection of the curves of generation and removal of heat. Finally, from the same principle of case 2, case 3 was defined by a sensitivity analysis in the reactor, which presented a spectrum of responses for the variables tested and it was concluded that, with only one variable, it is possible to change the number of steady states in a process, going from single to multiple and vice versa. |
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