Accession Number : ADA310370

Title :   JA2 Electrothermal-Chemical (ETC) Firings with Modified 400-kJ Pulser.

Descriptive Note : Final rept. Mar 94-Feb 95,

Corporate Author : ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s) : Del Guercio, M. ; Stobie, I. ; Oberle, W.

PDF Url : ADA310370

Report Date : MAY 1996

Pagination or Media Count : 53

Abstract : A 300-kJ pulse-forming network (PFN) with a pulse width of 1.2 ms was upgraded to 400-kJ maximum energy output and 2.4-ms pulse width by increasing the number of its six capacitors and by replacing its six inductors by larger ones. As the new pulser was desired to also provide the shorter original pulse of 1.2 ms, tests were performed in which only four of its eight new banks were left connected. A match of the new pulser output parameters was found when the new PFN charging was variated from 3 kV to 4 kV to match the same output energy levels as with the previous 300-kJ pulser. Also, the modified pulser showed that for a 1.2-ms pulse width and PFN charging voltages of 4 kV and 5 kV, there was a noticeable increase on the propellant (JA2 disks) burn rate when compared with previous pulser data.

Descriptors :   *FIRING TESTS(ORDNANCE), *PULSE GENERATORS, *PROPELLANTS, *BURNING RATE, THERMAL PROPERTIES, OUTPUT, ELECTRICAL PROPERTIES, COMBUSTION, CHEMICAL REACTIONS, ENERGY LEVELS, PLASMA DEVICES, BALLISTICS, CAPACITORS, INDUCTORS.

Subject Categories : Electrical and Electronic Equipment
      Physical Chemistry
      Ammunition and Explosives
      Ballistics
      Rocket Propellants

Distribution Statement : APPROVED FOR PUBLIC RELEASE