Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Development of a measurement system of temperature and pressure in the combustion chamber of a torch ignition system
Submission Author:
Kesiany Máxima de Souza , SP
Co-Authors:
Olexiy Shynkarenko, Kesiany Máxima de Souza
Presenter: Kesiany Máxima de Souza
doi://10.26678/ABCM.COBEM2017.COB17-0264
Abstract
The Chemical Propulsion Laboratory (CPL) at UnB/FGA is developing a prototype of a torch ignition system (project of FAPDF - 03/2015) in order to implement it into a hybrid rocket test motor for the SARA platform (program AEB – Uniespaço – II). This system is of fundamental importance to a reliable operation of a rocket motor. After the preliminary analysis of the system, it was verified that an advanced analysis is required at the characterization of temperature and pressure sensors since they produce perturbations in the flux and combustion processes. This study has as main objective an analytical and numerical analysis of the sensors impact on the operating parameters of the system, such as the temperature and pressure distribution inside the combustion chamber of the ignitor. After the study of the technical characteristics of the sensors used, this research evolved the numerical simulation based on the Navier-Stokes equations and combustion modelling applied to the problem in consideration, which makes possible the definition of the flow parameters of the ignitor. The validation of analytical and numerical results is based on the experimental studies provided by the project team. As final result, this study presents the possibility of having an adequate method of modelling and measuring of the data with good confidence.
Keywords
torch ignition, thermocouple, hybrid rocket motor, fluent combustion
