Banca de QUALIFICAÇÃO: ARTUR CRISTIANO PAULINO PEREIRA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : ARTUR CRISTIANO PAULINO PEREIRA
DATE: 12/02/2021
TIME: 09:00
LOCAL: ECT - Auditório D
TITLE:

Study of supersonic combustion in aerospace vehicle in atmospheric flight at Mach 5.8 and 20 km of altitude.

KEY WORDS:

Supersonic combustion, scramjet, hydrogen ignition.

PAGES: 91
BIG AREA: Engenharias
AREA: Engenharia Aeroespacial
SUBÁREA: Propulsão Aeroespacial
SPECIALTY: Combustão e Escoamento com Reações Químicas
SUMMARY:

In the present work, the thrust generation capacity of a scramjet integrated aerospace vehicle was evaluated from the combustion of hydrogen and atmospheric air at supersonic speed, for the flight of the scramjet vehicle at 20 km of altitude and speed of 1709.6 m/s, corresponding to Mach number of 5.79. A Theoretical-analytical method was used, considering the steady-state. The First Law of Thermodynamics, without and with reaction based on enthalpy of formation, was used to determine the properties. Correlations between the equivalence ratio with the mixture temperature, mixture speed, and exhausted gases temperature after combustion were obtained. The temperature and speed were also determined after the combustion gases expansion process. Mixing speed equal to 1152 m/s and exhaust gases temperature in the range of 2400 K to 2600 K was assumed, resulting in a fuel-air ratio in the range of 0.648 to 0.774 and mixing temperature of 875 K to 855 K. The temperature after the expansion varied from 865 K to 964 K, and the speed varied from 2425 m/s to 2532 m/s. A mean specific impulse equal to 4049.7 s was obtained, and positive non-installed thrust ranging from 760.8 N to 879.3 N.

BANKING MEMBERS:
Presidente - 1235107 - GEORGE SANTOS MARINHO
Interno - 738.408.158-00 - PAULO GILBERTO DE PAULA TORO - ITA
Interno - 1647050 - SANDI ITAMAR SCHAFER DE SOUZA
Externo à Instituição - ISRAEL DA SILVEIRA RÊGO