REVIEW OF PROPOSED SPECIFICATIONS RELATING TO THE SHIPMENT OF ETHYLENE IN TANK CARS AT CRYOGENIC TEMPERATURES

The report reviews proposed specifications and shipper regulations for 113 series tank cars for tranporting liquid ethylene at cryogenic temperatures. The study was limited in scope and was to be directed primarily at the holding time requirements necessary for safe shipment of the commodity. The insulation requirements based on a 30-day holding time capability with a design margin of 15 days are considered responsive to needs and are reasonable and practical within the current state of the art. A further definition of conditions for heat transfer calculations and measurement are suggested to assure consistent design and performance. Apparent deficiencies are noted in the proposed in-transit pressure rise specification; a candidate modification is described.

• Record URL:
  • https://railroads.dot.gov/elibrary/review-proposed-specifications-relating-shipment-ethylene-tank-cars-cryogenic-temperatures
• 
• Corporate Authors:

  Calspan Corporation

  4455 Genesee Street
  Buffalo, NY  United States  14225

  Federal Railroad Administration

  Office of Research and Development, 1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Vassalo, F A
  • Adams, D E
  • Bullerdiek, W A
• Publication Date: 1974-9

Media Info

• Media Type: Digital/other
• Pagination: 33 p.

Subject/Index Terms

• TRT Terms: Chemicals; Cryogenics; Electric insulating materials; Ethylenes; Freight traffic; Hazardous materials; Heat insulating materials; Heat transfer; Insulating materials; Liquid bulk cargo; Railroad transportation; Regulations; Safety; Safety engineering; Specifications; Tank cars
• Old TRIS Terms: Liquid freight
• Subject Areas: Freight Transportation; Law; Railroads; Safety and Human Factors;

Filing Info

• Accession Number: 00091320
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: Final Rpt.
• Contract Numbers: DOT-FR-20069
• Files: NTIS, TRIS, USDOT
• Created Date: Jun 26 1975 12:00AM