Improvement in the burning rate of a rocket propellant through radiation curing

Dedgaonkar, V. G.; Navle, P. B.; Shrotri, P. G.

doi:10.1016/s0969-806x(96)00113-2

Cited by 2 publications

(3 citation statements)

References 5 publications

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“…The ignited flame front can easily proceed further through voids to produce increased burning rate. 24 The Different HEAE Burning Rate Affects The Fire-Extinguishing Time A series of fire-extinguishing experiments were tested with different preliminary T 0 (six be applied: À20 8C, À10 8C, 0 8C, 10 8C, 20 8C, 40 8C), different raw material granularity (four granularity be applied: 300-400 um, 200-300 um, 100-200 um, 60-100 um) and different HEAE density (six density be applied: 1.251 g/cm 3 , 1.402 g/cm 3 , 1.495 g/cm 3 , 1.628 g/cm 3 , 1.758 g/cm 3 , 1.774 g/cm 3 ). The mass of HEAE use to test fireextinguishing time is 500 g, which was suppressed to be cylinder, diameter is 5.2 cm and evenly wrapped with flame retardant material.…”

Section: The Different Heae Density Influencing Burning Rate Of Heaementioning

confidence: 99%

“…In addition, as the combustion rate of HEAE increases, the granularity of the chemical particles that generated during the combustion of HEAE becomes less and less, which helps in improving the effective fire suppression of the aerosol. 23,24 Hence, the combustion rate of HEAE will improve the fireextinguishing efficiency.…”

Section: The Different Heae Density Influencing Burning Rate Of Heaementioning

confidence: 99%

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The influencing factors of HEAE burning rate and fire suppression efficiency

Zhang¹,

Liao²,

Pan³

et al. 2006

J. Chem. Health Saf.

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Highly effective aerosol fire-extinguishing agent (HEAE) is a safe and practical alternative to Halon which developed from solid propellant technology. HEAE combusts and generates large amounts of chemical particles and inert gases, which are released into the fire scenario to extinguish the fire. HEAE burning rate has a great effect on its suppression capability.In this paper, the effects of preliminary temperature (T 0 ), the density and the raw material granularity of HEAE agent on the burning rate were examined. The results shown, in general trend, the higher T 0 , the faster burning rate of HEAE would be. The burning rate of HEAE is going up with diminution of raw material granularity of HEAE. The burning rate of HEAE is going down with increasing of density of HEAE. In addition, the relationship between the combustion rate and the fire extinguishing time is also discussed in this study.

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Section: The Different Heae Density Influencing Burning Rate Of Heaementioning

confidence: 99%

Section: The Different Heae Density Influencing Burning Rate Of Heaementioning

confidence: 99%

The influencing factors of HEAE burning rate and fire suppression efficiency

Zhang¹,

Liao²,

Pan³

et al. 2006

J. Chem. Health Saf.

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“…This is assigned to cross-linking shrinkage in the polymer matrix, resulting in the formation of voids which favour the progression of the ignition £ame front. 667 Several papers deal with EPR dosimetry of tooth enamel, especially concerning the nature of the paramagnetic centres, 668 their localization, 669 and an intercomparison of methods used in Utah and the Ukraine for EPR dosimetry in a dose range (170^250 mGy) close to dental X-ray doses. 670…”

Section: Other Applicationsmentioning

confidence: 99%

7 Radiation chemistry

Belloni

Delcourt

Houée-Levin⊥

et al. 2000

Annu. Rep. Prog. Chem., Sect. C

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We try in this review to survey advances in all the aspects of Radiation Chemistry (the effects of high energy or ionizing radiation), both basic and applied, made during the period 1995^1999, after the last report issued at the end of 1994. 1 Classically, two main classes of studies are relevant. The ¢rst one includes the primary phenomena induced by the interaction of high-energy radiation with a chemical system. The way the energy is spatially deposited is indeed highly nonhomogeneous and depends on the type of radiation considered. Mutual reactions between the primary species produced also depend on their initial spatial distribution, and therefore on the energy absorption pattern. The kinetic aspects derive directly from the initial events following radiation absorption and thus, when observed at times as short as possible, give useful information on the early energy distribution for each of the radiation types, X-and g-photons, electrons and heavy particles, and, on the in£uence of their intensity and energy per particle.The second class of studies utilizes the background knowledge of radiation chemistry to generate and then to observe the fate of chemical transient species known to be involved in very important chemical or biochemical processes. Numerous data, such as the nature of reaction products, the absolute rate constants, the sequence of elementary reactions constituting a mechanism, and the thermodynamic and spectroscopic properties of short-lived species have been attained. This kind of study of transients and reaction mechanisms, which can be approached only by pulse techniques (essentially pulse radiolysis or laser photolysis, each with its speci¢c advantages), constitutes the new ¢eld of fast to ultrafast chemistry. It concerns extended domains of physical, organic, inorganic, and bio-chemistry. Moreover, the understanding of mechanisms is quite helpful in suggesting new ways of synthesis or degradation induced by irradiation and is now extensively used in developing various speci¢c processes in applied chemistry. The number of studies on the chemical mechanisms and in applied radiation chemistry constitutes an increased fraction of the total publications in radiation chemistry, which we estimate to be around 4000 over the period considered (almost constant compared to the preceding 5-year

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Improvement in the burning rate of a rocket propellant through radiation curing

Cited by 2 publications

References 5 publications

The influencing factors of HEAE burning rate and fire suppression efficiency

The influencing factors of HEAE burning rate and fire suppression efficiency

7 Radiation chemistry

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