Polymers of o-, m-, and p-nitrophenols with formaldehyde were used as fuel binders in composite propellants based on NH 4C]O 4 and KCIO 4 oxidizers. A study of the burning rate in nitrogen has revealed the occurrence of a breakpoint at about 3-5 atm in the burning rate-pressure curves of all six typ
Dependence of burning rate of composite solid propellants on pressure
β Scribed by R.P. Rastogi; Ram Raj Singh; Anand P. Rao
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- English
- Weight
- 164 KB
- Volume
- 45
- Category
- Article
- ISSN
- 0010-2180
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β¦ Synopsis
Various theories [1,2] have been proposed for the pressure dependence of burning rate of composite propellants since a knowledge of this pressure dependence is vital for the design of a solid propellant rocket motor. Recently, Girdhar and Arora [3] have measured the burning rate of phenol-formaldehyde composite propellants in the pressure range 1-95 atm using NH4C10 4 (AP), KC10 4, NaNO 3, and KNO 3 as oxidizers. The data were analyzed using the following equations: P
π SIMILAR VOLUMES
Burning rates of phenol-formaldehyde composite propellants based on NH4CI04, KCIO4, NaNOa, and KNO a oxidisers are measured under the pressure of nitrogen at 1-95 atm. The burning rate laws of the type (P[r) = (a + bP) and (P/r) = (a + bP21 a) are tested. It is revealed that the latter gives a super
It is assumed thai combustion takes place in the turbulent boundary tay,'~ and that the turbuh,tlt ~lante condsts o/ distorted " [letnwl,'ts" but otheru,ts,, vet,tins on a otob'cular scah' the charact~,ristics o/a laminar l~atne. /| /tat-pb~t,' heat-tran,~/rr ~:orv, latton wah a /actor/or truttspira
While burning at subatmospheric pressure, composite propellants generally fume and under certain conditions eject partially reacted particles. This characteristic property is exploited in this study to understand the mechanism of burning rate modification. The additives CuCr204, Fe203, Sb2 03, AI(OH