Calculation of complex chemical equilibrium compositions of composite rocket propellants combustion products

Calculation of complex chemical equilibrium compositions of composite rocket propellants combustion products

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An adequate method for calculating chemical equilibrium in a predominantly gaseous, multi-component reactive mixture was investigated and successfully applied.This method involves the stated equilibrium reaction scheme, including, first, the formation of chemical species, of which concentrations prevail in the mixture, then the formation of quest fryer gaseous atomic species by dissociation of previous ones, and, finally, the formation of complex chemical species from the atomic species.A computer program, which permits calculations of equilibrium compositions by the iteration procedure, has been developed.The results of calculations have been compared with data obtained by the programs OPHELIE, MICROPEP, and the program SPP, as documented in the NASA-Lewis Code, axon fixed blade which is presently the world-wide standard.

All comparisons gave satisfactory agreement.