Regression rate studies in hypergolic system

Paul, P. J. ; Mukunda, H. S. ; Narahari, H. K. ; Venkataraman, R. ; Jain, V. K. (1981) Regression rate studies in hypergolic system Combustion Science and Technology, 26 (1-2). pp. 17-24. ISSN 0010-2202

[img]
Preview
PDF - Publisher Version
4MB

Official URL: http://www.informaworld.com/smpp/content~db=all~co...

Related URL: http://dx.doi.org/10.1080/00102208108946942

Abstract

Regression rates of a hypergolic combination of fuel and oxidiser have been experimentally measured as a function of chamber pressure, mass flux and the percentage component of the hypergolic compound in natural rubber. The hypergolic compound used is difurfurylidene cyclohexanone (DFCH) which is hypergolic with the oxidiser red fuming nitric acid (RFNA) with ignition delay of 60-70 ms. The data of weight loss versus time is obtained for burn times varying between 5 and 20 seconds. Two methods of correlating the data using mass flux of oxidiser and the total flux of hot gases have shown that index n of the regression law r=aGoxn or r=aGnxa-1 (x the axial distance) is about 0.5 or a little lower and not 0.8 even though the flow through the port is turbulent. It is argued that the reduction of index n is due to heterogeneous reaction between the liquid oxidiser and the hypergolic fuel component on the surface.

Item Type:Article
Source:Copyright of this article belongs to Taylor and Francis Ltd.
ID Code:23224
Deposited On:25 Nov 2010 13:16
Last Modified:17 May 2016 07:06

Repository Staff Only: item control page