Analyses of rail chill effect

Details

• Creators:
  Raj, P. K. ; Crowe, K. E.
• Corporate Creators:
  Technology & Management Systems, Inc. ; John A. Volpe National Transportation Systems Center (U.S.)
• Subject/TRT Terms:
  • Heat transfer
  • Car wheels (Railroads)
  • Rolling contact
  • Railroad trains
  • Braking
  • Braking
  • Heat transfer analysis
  • Rail vehicles
  • Wheels
• Publication/ Report Number:
  DOT-VNTSC-FRA-96-8 ; DOT/FRA/ORD-97/07
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Final report; November 1994-March 1995
• Corporate Publisher:
  United States. Federal Railroad Administration. Office of Research and Development
• Abstract:
  The principles of heat transfer are applied to analyze the so-called "rail chill" effect, which refers to hear loss by conduction from a hot rail vehicle wheel through the contact area into a cold rail, the wheel having been heated by friction braking. A difference of more than a factor of two is demonstrated between chill effectiveness based on instantaneous heat generation and transfer rates, and the total heat lost to the rail, as a percentage of the total heat generated over a specific period of time, in transient situations such as braking.
• Format:
  PDF
• Funding:
  R8005/RR828
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/8932/dot_8932_DS1.pdf
• File Type:
  [PDF - 427.33 KB]
• Collection(s):
  Volpe Center ; Federal Railroad Administration
• Main Document Checksum:
  urn:sha256:7f73bcdb34f67073541b19938eaadb09df040e435250d6f873f197f1d99b168a