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  2. Gas blending - Wikipedia

    en.wikipedia.org/wiki/Gas_blending

    A breathing gas is a mixture of gaseous chemical elements and compounds used for respiration. The essential component for any breathing gas is a partial pressure of oxygen of between roughly 0.16 and 1.60 bar at the ambient pressure. The oxygen is usually the only metabolically active component unless the gas is an anaesthetic mixture.

  3. Amagat's law - Wikipedia

    en.wikipedia.org/wiki/Amagat's_law

    Amagat's law states that the extensive volume V = Nv of a gas mixture is equal to the sum of volumes V i of the K component gases, if the temperature T and the pressure p remain the same: [1] [2]

  4. Viscosity models for mixtures - Wikipedia

    en.wikipedia.org/wiki/Viscosity_models_for_mixtures

    In a fluid mixture like a petroleum gas or oil there are lots of molecule types, and within this mixture there are families of molecule types (i.e. groups of fluid components). The simplest group is the n-alkanes which are long chains of CH 2-elements. The more CH 2-elements, or carbon atoms, the longer molecule. Critical viscosity and critical ...

  5. Common ethanol fuel mixtures - Wikipedia

    en.wikipedia.org/wiki/Common_ethanol_fuel_mixtures

    The 50 ED95 buses had a cost of R$ 20 million (US$12.3 million) and due to the higher cost of the ED95 fuel and the lower energy content of ethanol as compared to diesel, one of the firms participating in the cooperation agreement, Raísen (a joint venture between Royal Dutch Shell and Cosan), supplies the fuel to the municipality at 70% of the ...

  6. Mixture fraction - Wikipedia

    en.wikipedia.org/wiki/Mixture_fraction

    [1] [2] Both the feed streams are allowed to have inert gases. [3] The mixture fraction definition is usually normalized such that it approaches unity in the fuel stream and zero in the oxidizer stream. [4] The mixture-fraction variable is commonly used as a replacement for the physical coordinate normal to the flame surface, in nonpremixed ...

  7. Air–fuel ratio - Wikipedia

    en.wikipedia.org/wiki/Air–fuel_ratio

    Air–fuel ratio (AFR) is the mass ratio of air to a solid, liquid, or gaseous fuel present in a combustion process. The combustion may take place in a controlled manner such as in an internal combustion engine or industrial furnace, or may result in an explosion (e.g., a dust explosion).

  8. Get this $20 Alexa smart speaker instead of a $50 Echo Dot - AOL

    www.aol.com/news/20-alexa-smart-speaker-instead...

    At $50, the Echo Dot is the most affordable Alexa speaker Amazon sells. That also explains why it's the most popular Alexa speaker Amazon sells. If you want to get your hands on Alexa smart ...

  9. Aerozine 50 - Wikipedia

    en.wikipedia.org/wiki/Aerozine_50

    Aerozine 50 is a 50:50 mix by weight of hydrazine and unsymmetrical dimethylhydrazine (UDMH), [1] [2] developed in the late 1950s by Aerojet General Corporation as a storable, high-energy, hypergolic fuel for the Titan II ICBM rocket engines.