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- W146384013 abstract "The transient mass burning rate of energetic materials in a conductive mode can be calculated from the single pressure-time record of a closed bomb experiment. Assuming negligible heat loss and no initial gas in the bomb, the mass burning rate of pyrotechnic materials in the conductive heat mode can be related to the pressure-time record p(t), its derivative par. deltap/par. deltat(t), and the thermodynamic properties of gaseous combustion products. These thermodynamic parameters are the isochoric flame temperature, the molecular weight and the co-volume of the combustion product gases. The mass burning rate of pyrotechnic materials in the conductive mode can also be determined directly from equilibrium thermodynamic analysis without having to find the intermediate thermodynamic properties. The calculations based on two methods are performed and the results for a typical pressure-time record are compared. Convective burning of pyrotechnic materials can be theoretically analyzed by either a complicated porous flow and heat transfer analysis or by using a very simple homogeneous model. The former is not suitable for parametric study and the latter is too simple to simulate the underlying physical phenomena. In this work a model based on two measurements of pressure-time records is proposed and discussed. The model ismore » simple enough for parametric study while addressing important physical phenomena associated with convective burning of pyrotechnic materials in closed systems. 12 refs., 3 figs., 2 tabs.« less" @default.
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- W146384013 date "1988-01-01" @default.
- W146384013 modified "2023-09-27" @default.
- W146384013 title "Transient burning analysis of pyrotechnic materials in a closed bomb" @default.
- W146384013 hasPublicationYear "1988" @default.
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