RADIO FREQUENCY LIQUID LEVEL GAUGING IN PROPANE TANK CAR SAFETY TESTS - A FEASIBILITY STUDY

Selected radio frequency (rf) resonances of an empty 30,300 liter (8,000 gallon) tank car have been measured to determine whether rf can be used to gauge the propane liquid levels during tank car fire safety tests. The change of resonant frequencies of a small horizontal cylindrical tank as a function of liquid volume has been tested in order to estimate the precision to which the amount of propane in a tank car can be measured. The technique is applicable to routine tank car gauging.

• Corporate Authors:

  National Bureau of Standards

  National Engineering Lab, Thermophysical Properties Division
  Boulder, CO  United States  80302
• Authors:
  • Siegwarth, J D
• Publication Date: 1979-1

Media Info

• Pagination: 15 p.

Subject/Index Terms

• TRT Terms: Feasibility analysis; Fire prevention; Fires; Flammability tests; Indicating instruments; Liquefied petroleum gas; Liquids; Measuring instruments; Propane; Radar; Radio frequency; Resonance frequency; Safety; Tank cars; Tests; Transmission
• Old TRIS Terms: Liquid level; Liquid level indicators; Radio frequencies; Radio transmission
• Subject Areas: Freight Transportation; Railroads; Safety and Human Factors;

Filing Info

• Accession Number: 00197962
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: NBSIR-79-1600
• Files: TRIS
• Created Date: Sep 15 1979 12:00AM