Accession Number:

ADA243898

Title:

Static Pressure Measurements of a Low Power Arcjet

Descriptive Note:

Master's thesis,

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s):

• Talley, Kevin P.

Report Date:

1991-12-01

Pagination or Media Count:

106.0

Abstract:

The NASA Lewis 1.2 kilowatt arcjet has been used for a number of performance and lifetime studies. This design was modified to obtain static pressure measurements at several locations along the arcjet nozzle. These measurements were taken at various propellant flow rates over most of the operational envelope of the thruster. Measured static pressure distributions are considerably higher than predicted by ID models and are proportional to the arc power. A simple thermodynamic model is also compared to the data, and is shown to match the slope of the data while overpredicting the pressure.

Descriptors:

• *THERMODYNAMICS
• PROPELLANTS
• FLOW RATE
• ENVELOPE(SPACE)
• LIFE SPAN(BIOLOGY)
• THRUSTERS
• STATIC PRESSURE
• PRESSURE DISTRIBUTION
• PRESSURE MEASUREMENT
• SLOPE

Subject Categories:

• Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE