| || Critical ignition temperature of fuel air explosive
Author : Zhang, Qi;Bai, Chun Hua;Dang, Hai Yan;Yan, Hua
Source : Defence Science Journal ; Vol:54(4) ; 2004 ; pp 469-474
Subject : 620.261 Explosives ;623.4 Armaments and Ballistics
Keywords : Adiabatic compression;Critical temperature;Fuel;Equation of state;FAE;Warhead charge;Critical ignition temperature;Mixed fuel
Abstract : The charge of fuel-air explosive (FAE) warhead usually is solid-liquid mixed fuel. The solid component is aluminium powder. To meet the demand of FAE weapon usage and storage safety, in the mixed-fuel medium, there must be gaps where adiabatic compression occurs during launching overloading of warhead. Adiabatic compression makes the temperature of the medium in the gaps to rise. High temperature can cause explosion of the mixed fuel during launching acceleration of the warhead, which is very dangerous. Because the fuel is a multicomponent mixture, the critical ignition temperature can’t be determined only by one component. Through experiment, the critical ignition temperature of the mixed fuel is attained, and the changing regularity of the pressure following the temperature is shown in this paper.