Investigation of Surface Tension Screens for Use in Ramjet Fuel Systems
Abstract
This report presents an analysis of surface tension screens for their applicability to fuel systems in ramjet-powered vehicles. Selection of surface tension screens for fuel expulsion over other expulsion techniques was made on the basis of their high temperature capability, moderate pressure requirements, geometrical considerations, simplicity (no moving parts), and other factors. Analysis of the pressure losses encountered in expelling the heavy hydrocarbon fuel (RJ-5) used in this study revealed that the primary pressure loss in the system was encountered in flowing the fuel through the surface tension screen. The time required to expel fuel from various trap tank sizes was calculated as a function of fuel flow rate. Parameter investigated in addition to trap tank size included orifice vent area and acceleration (g's) force.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1974
- Accession Number
- ADA004098
Entities
People
- Jack R. Fultz
Organizations
- Air Force Research Laboratory