Testing and Modeling Fuel Regression Rate in a Miniature Hybrid Burner. (26th August 2012)

• Record Type: Journal Article
• Authors: Fanton, Luciano; Paravan, Christian; De Luca, Luigi T.
• Other Names: Pastrone Dario Academic Editor.
• Is Part Of: International journal of aerospace engineering. Volume 2012(2012)
• Publication Date: 2012-08-26
• Subjects: Aerospace engineering -- Periodicals; 629.105
• DOI: 10.1155/2012/673838
• Languages: English
• ISSNs: 1687-5966

Abstract

Abstract : Ballistic characterization of an extended group of innovative HTPB-based solid fuel formulations for hybrid rocket propulsion was performed in a lab-scale burner. An optical time-resolved technique was used to assess the quasisteady regression history of single perforation, cylindrical samples. The effects of metalized additives and radiant heat transfer on the regression rate of such formulations were assessed. Under the investigated operating conditions and based on phenomenological models from the literature, analyses of the collected experimental data show an appreciable influence of the radiant heat flux from burnt gases and soot for both unloaded and loaded fuel formulations. Pure HTPB regression rate data are satisfactorily reproduced, while the impressive initial regression rates of metalized formulations require further assessment.