Accession Number : AD0800666

Title :   DESIGN OPTIMIZATION OF THE RADIOTRACER PROPELLANT GAUGE.

Descriptive Note : Technical rept.

Corporate Author : TRW SYSTEMS GROUP REDONDO BEACH CA

Report Date : 31 JUL 1966

Pagination or Media Count : 134

Abstract : The report presents the results of a study concerning the design of radiotracer propellant gauging systems for both bladder and bladderless feed system configurations. The radiotracer propellant gauging concept is based on the principle that the concentration of radiotracer gas located in the ullage volume of the propellant tank or in the pressurant tank will decrease in proportion to the quantity of propellant removed. Thus, the variation in radiotracer concentration which can be measured using a radiation detector provides an accurate measurement of the propellant remaining. This study has identified several areas for further investigation including system definition, component development and ground system testing of a radiotracer gauging system for bladderless propulsion systems. Also, it has been found that a solid beta source-detector combination which measures the gas density in the pressurant tank may offer certain advantages over the radiotracer technique when used in a bladderless system.

Descriptors :   *RADIATION MEASURING INSTRUMENTS), (*LIQUID LEVEL GAGES, LIQUID LEVEL CONTROL, LIQUID ROCKET PROPELLANTS, PROPELLANT TANKS, EXPULSION BLADDERS, KRYPTON, RADIOACTIVE ISOTOPES, GAS FLOW, ABSORPTION(PHYSICAL), TRACER STUDIES, BETA PARTICLES, VENTING, LEAKAGE(FLUID), THERMODYNAMICS, CALIBRATION, LIQUID PROPELLANT ROCKET ENGINES, FUEL SYSTEMS, SIMULATION, DIGITAL COMPUTERS, DESIGN, OPTIMIZATION.

Subject Categories : Test Facilities, Equipment and Methods
      Nuclear Instrumentation
      Liquid Propellant Rocket Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE