Accession Number : ADA302015

Title :   A Pulse-Forming Network Design for Electrothermal-Chemical (ETC) Combustion Characterization of Solid Propellants.

Descriptive Note : Final rept. Jan-Oct 94,

Corporate Author : ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s) : Del Guercio, M. ; Burden, H. ; Stobie, I. ; White, K. ; Katulka, G.

PDF Url : ADA302015

Report Date : SEP 1995

Pagination or Media Count : 46

Abstract : The combustion of solid propellants subjected to plasma augmentation has been studied with a 300-kJ maximum stored energy Pulse-Forming Network (PFN) in the range of 1 KJ/g of electrical energy over a 1.2-ms pulse length. A closed chamber vessel is used for the combustion of these solid propellants in which the plasma is injected via a plasma generator. Since the need to characterize the effects of plasma augmentation on propellant combustion may require a greater pulse length than the 1.2 ms initially provided by the PFN used at the U.S. Army Research Laboratory (ARL), a PFN upgrade providing a 2.4-ms pulse length with a 400-kJ maximum stored energy was implemented. When operated at 5 to 7% of the maximum stored energy, the PFN pr6vides augmentation in the range of 1 kJ/g of propellant. Calculations, design, and fabrication are detailed. Also discussed are plasma generator modifications dictated by the increase in pulse length and energy input needed for test firings.

Descriptors :   *PLASMAS(PHYSICS), *PULSES, *PLASMA GENERATORS, *SOLID PROPELLANTS, *BIOCHEMICAL OXYGEN DEMAND, *COMBUSTION CHAMBER GASES, INPUT, ARMY RESEARCH, CHEMICALS, MODIFICATION, FIRING TESTS(ORDNANCE), ENERGY, AUGMENTATION, ELECTROCHEMISTRY, LENGTH, THERMAL CONDUCTIVITY, ELECTRICITY, ENERGY STORAGE, CLOSED ECOLOGICAL SYSTEMS.

Subject Categories : Inorganic Chemistry
      Ammunition and Explosives
      Combustion and Ignition

Distribution Statement : APPROVED FOR PUBLIC RELEASE