gelled propellants are improved propellants that can be considered as the final extension of liquid propellants. high specific impulse, good density and safety better than that of both solid and liquid propellants are advantages of the gel propellants. they are made by addition a suitable gellant to liquid propellants. in this research, nano al particles have been used in udmh gel fuel. the gel...

aerosols. Ann Int Med 6 5 : 9 8 5 9 9 5 , 1966 5 Azar A, Zapp JA, Reinhardt C F , et al: Letter to editor: Cardiac toxicity of aerosol propellants. JAMA 215, 15011502, 1971 6 Taylor GW, Harris WS, Bogdonoff M D : Ventricular arrhythmias induced in monkeys by the inhalation of aerosol propellants. JCI 5 0 : 1 5 4 6 1 5 5 0 , 1971 7 Sterling CM, Batten J C : Effect of aerosol propellants and surf...

Future space vehicles will require the use of non-toxic, cryogenic propellants, because of the performance advantages over the toxic hypergolic propellants and also because of the environmental and handling concerns. A prototypical capillary flow liquid acquisition device (LAD) for cryogenic propellants was fabricated with a mesh screen, covering a rectangular flow channel with a cylindrical ou...

The goal of the EU Horizon2020 project Rheform is the replacement of hydrazine with liquid propellants based on ammonium dinitramide (ADN) for orbital and launcher propulsion systems. Hydrazine and its derivatives are the standard propellants for spacecraft propulsion system since the 1960s, but they are highly toxic and carcinogenic. New regulations will lead to restriction of their use in the...

Double base propellants composed of nitrocellulose (NC) and nitroglycerin (NG) have been used in rocket and gun applications since the late 1800s [1] . Such propellants offer several benefits over their more modern composite counterparts, including simple formulation, high modulus and strength, and chlorine-free minimum smoke exhaust products [2,3] . Nevertheless, double base propellants are pl...

composite solid propellants were prepared with and without nano-alloys (ti-co, ti-ni, ti-zn), where nano-alloys used as catalyst. these nano-alloys are prepared by hydrazine reduction method. catalytic properties of these nanomaterials were measured on ammonium perchorate/hydroxyterminatedpolybutadiene propellant by thermogravimetery analysis and differential thermal analysis. both experimental...

Military training with howitzers and mortars produces excess propellant that is burned on the training range and can result in point sources containing high concentrations of unreacted propellant constituents. Propellants contain energetic compounds such as nitroglycerin (NG) and 2,4-dinitrotoluene (2,4-DNT), both of which are found at firing positions and propellant disposal areas. To quantify...