Abstract
Rocket propellants are generally manufactured using dated technologies, which involve batch mixing and ram extrusion. This paper outlines various tasks involved in the development of die twin screw extrusion process for the state-of-the-art manufacture of double base propellants. These tasks include TGA and DSC analysis, the characterization of various material functions including temperature and wall shear stress dependent shear viscosity, extrudate swell, flow instability and wall slip behavior of the propellant, the simulation of the coupled flow and heat transfer occurring in the twin screw extruder, the design of the die employing FEM calculations, and validation experiments using a thermal imaging camera and a well-instrumented twin screw extruder. Such characterization and simulation tasks are essential to the safe processing of energetic materials, which can be accomplished without the use of precarious trial-and-error procedures.
Original language | English |
---|---|
Pages | 3159-3186 |
Number of pages | 28 |
State | Published - 2004 |
Event | 2004 AIChE Annual Meeting - Austin, TX, United States Duration: 7 Nov 2004 → 12 Nov 2004 |
Conference
Conference | 2004 AIChE Annual Meeting |
---|---|
Country/Territory | United States |
City | Austin, TX |
Period | 7/11/04 → 12/11/04 |