Gas Generator Pyrotechnics Using Gun Propellant Technology Methods

Authors: B. A. Parate

Abstract:

This research article describes the gas generator pyro-cartridge using gun propellant technology methods for fighter aircraft application. The emphasis of this work is to design and develop a gas generating device with pyro-cartridge using double base (DB) propellant to generate a high temperature and pressure gas. This device is utilised for dropping empty fuel tank in an emergency from military aircraft. A data acquisition system (DAS) is used to record time to maximum pressure, maximum pressure and time to half maximum pressure generated in a vented vessel (VV) for gas generator. Pyro-cartridge as a part of the gas generator creates a maximum pressure and time in the closed vessel (CV). This article also covers the qualification testing of gas generator. The performance parameters of pyro-cartridge devices such as ignition delay and maximum pressure are experimentally presented through the CV tests.

Keywords: Closed vessel, data acquisition, double base propellant, gas generator, ignition system, ignition delay, propellant, pyro-cartridge, pyrotechnics, vented vessel.

References:

[1] Cheng C., Xiaobing Z., Chong W, Lu W: Numerical investigation on cooling performance of filter in a pyrotechnic gas generator, Defence Technology, Vol. 17, 2021, pp 343-351.
[2] Adam S. Cumming, New trends in advanced high energy materials, Journal of Aerospace Technology and Management, 1(2), 2009, pp 161-166.
[3] Han Z. Y., Zhang Y. P., Du Z. M., Li, Z.Y., Yao Q and Yang Y. Z., The Formula Design and Performance Study of Gas Generators based on 5-Aminotetrazole, Journal of Energetic Materials, 2017, pp 1-8 doi:10.1080/07370652.2017.1311969
[4] Karen S. Martirosyan, Leizheng Wang, Arol Vicent, Dan Luss, Nano energetic Gas-Generators: Design and Performance, Propellants Explos. Pyrotech. Vol 34, 2009, pp 532–538 doi: 10.1002/prep.200800059
[5] Qun Liu, Wenjian Cai, Shiyi Liu and Xinwei Liu, Numerical simulation of pyrotechnic device based on propellant deflagaration model, Sci. Tech. Energetic Materials, Vol 80(3), 2019, pp 93-98.
[6] Parate B A. Propellant Actuated Device for Parachute Deployment during Seat Ejection for an Aircraft Application, High Tech and Innovation Journal, Vol. 1, No. 3, pp 112-120, DOI: http://dx.doi.org/10.28991/HIJ-2020-01-03-03
[7] Parate B. A., Chandel S. and H. Shekhar. Cartridge Case Design and its Analysis by Bilinear, Kinematic Hardening Model, Advances in Military Technology, Vol 14 (2), 2019, pp 231-244, ISSN 1802-2308, eISSN 2533-4123, DOI 10.3849/aimt.01283
[8] Double Base Propellant Specification No. HEMRL SPECN No. HEMRL/GP/PS/285
[9] Vittal D. Use of Closed Vessel as a constant pressure apparatus for the measurement of the rate of burning propellants, Def. Sci. J., Vol. 30, 1980. pp 69-74.
[10] Vittal D. Application of closed vessel technique for evaluation of burning rates of propellant at low pressure. Def. Sci. J., Vol. 27, 1977, pp 83-88.
[11] Rao Bhaskara K. S. Art in Internal Ballistics, Def. Sci J, Vol. 132(2) 1982, pp 157-174.
[12] Mehta Pragati, Shetty C. P., Pundkar R N., and H Shekhar. : Effect of Loading Densities in Closed Vessel Tests on the Burning Rate of a Propelling Charge , Def. Sci. J., Vol. 65(2), 2015, pp. 126-130 doi : 10.14429/dsj.65.8158
[13] Zbigniew K. Leciejewski and Zbigniew Surma, Effect of Application of Various Ignition Conditions in Closed-Vessel Tests on Burning Rate Calculation of a Fine-Grained Propellant, Combustion, Explosion, and Shock Waves, Vol. 47(2), 2011, pp 209–216 doi: 10.1134/S0010508211020109
[14] Parate B A, S. Chandel and H. Shekhar. Design Analysis of Closed Vessel for Power Cartridge Testing, Problems of Mechatronics Armament, Aviation, Safety Engineering, Vol 10 1 (35), 2019, pp 25-48, ISSN 2081-5891 doi :10.5604/01.3001.0013.0794
[15] Parate B. A., Chandel S. and Shekhar H.. Experimental analysis of Ballistic parameter evaluation of power cartridge in vented vessel for water-jet application, Science & Technology of Energetic Material, Vol.81 (2), 2020, pp. 47-52
[16] Parate B. A., Bamble J. G., Dixit V. K. and Rao V. Venkateswara: Life extension study of imported of main seat ejection cartridges using internal ballistic measurement for aircraft appliaction, Science & Technology of Energetic Material, Vol. 82(1), 2021, pp 21-28.
[17] Parate B. A, H. Shekhar, S.Chandel: Lumped Parameter Analysis of Bridge Wire in an Electro Explosive Devices (EED) of a Power Cartridge for Water-Jet Application : A case Study , Central European Journal of Energetic Material, 2020, 17(3): pp 408-427; doi 10.22211/cejem/127814
[18] Joint Service Guide (JSG) 0102 : Environmental Testing of Armament stores, 1984.
[19] Parate B. A., Bamble J. G., Sahu A. K. & Dixit V. K. Design, Qualification Testing of Gas Generator for Aircraft Applications, Proceedings of 12th Int. High Energy Materials Conf. & Exhibit (HEMCE) 2019 held at Chennai.
[20] Parate B. A., Deodhar K. D. and Dixit V. K. Qualification Testing, Evaluation and Test Methods of Gas Generator for IEDs Application, Defence Science Journal, 2021. vol.71(4), pp 462-469, doi 10.14429/dsj.71.16601