Small-Orifice Tubes for Minimizing Dilution in Exhaust-Gas Samples
Abstract
Samples taken from the Wright R-2600-B engine indicate that small round orifices of 20 holes, 0.0135-inch in diameter or slot type orifices from 0.008 to 0.012-inch wide minimize dilution to a negligible amount, when located to receive directly the impact pressure of the exhaust gases. Dilution can be detected by operating the sampling tube at different pressures and, if the orifices are not located properly, exhaust gases are diluted approximately 50 percent. Analysis of gas samples taken is tabulated, and correct orientation and location of orifices are shown by photographs.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1943
- Accession Number
- ADA801314
Entities
People
- Harvey A. Cook
- Walter T. Olson
Organizations
- Glenn Research Center