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Nitrous Oxide Fuel Blend propellants are a class of liquid rocket propellants intended to replace hydrazine as the standard rocket fuel. The fuel and oxidizer are blended and stored; this is sometimes referred to as a ''mixed monopropellant''. Upon use, the propellant is heated or passed over a catalyst bed and the nitrous oxide decomposes into oxygen-rich gasses. Combustion then ensues. Special care is needed in the chemical formulation and engine design to prevent detonating the stored fuel. NOFBX is a recent example, developed by Firestar Technologies.〔 == Overview == (詳細はLiquid rocket propellants * Solid propellants * Hybrid rocket ;Designs using one or more fuels * Monopropellants * Bipropellants * Tripropellants One of the more common rocket fuels used today is hydrazine, a monopropellant. It is principally used because of its high specific impulse (efficiency) and low weight-to-fuel ratio (i.e., it's a light fuel). Hydrazine does have drawbacks however; it is toxic, unsafe to handle, and produces ammonia. Ammonia is an irritant, burning the skin and mucous membranes. Nitrous oxide decomposes into hot oxygen-rich air, and requires no separate supply of oxidizer, such as the liquid oxygen used in many high-performance rocket engines today.〔 〕 Consequently, it can be used as a monopropellant by itself. For added performance nitrous oxide may also be blended with a range of different fuels and emulsifiers. Such a blend of an oxidizer and a fuel is called a mixed monopropellant. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Nitrous oxide fuel blend」の詳細全文を読む スポンサード リンク
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