A COOLED-TUBE PYROMETER WITH EXPERIMENTAL RESULTS OBTAINED IN A HIGH-TEMPERATURE GAS STREAM
Abstract
An immersion-type pyrometer is described whose primary sensing element is a cylindrical tube in cross flow. The heat-transfer rate to this unit is determined by measurement of the flow rate and temperature rise of a coolant passing through the tube. The heat-transfer rate can then be related to free-stream temperature, after determination of a constant of proportionality by calibration against a reference pyrometer at some convenient lower temperature. Experimental data were obtained in a subsonic exhaust-gas stream over a pressure range of 2/3 to 1-1/2 atmospheres and a temperature range of 1600 to 4400 R. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1961
- Accession Number
- AD0262037
Entities
People
- George E. Glawe
- Lloyd N. Krause
- Robert C. Johnson
Organizations
- National Aeronautics and Space Administration