Method and system for lean premixed/prevaporized combustion

    公开(公告)号:AU649871B2

    公开(公告)日:1994-06-02

    申请号:AU2153992

    申请日:1992-05-05

    Abstract: A method of combusting an endothermic fuel in a lean premixed/prevaporized combustion system includes transferring thermal energy from a combustion air stream to an endothermic fuel decomposition catalyst to cool the combustion air stream and heat the fuel and catalyst to a temperature sufficient to endothermically decompose an endothermic fuel. The catalyst is contacted with fuel to cause the fuel to endothermically decompose into a reaction product stream. The reaction product stream is mixed with the cooled combustion air stream to form a well-mixed, uniformly lean fuel/air mixture and the fuel/air mixture is combusted at an equivalence ratio of less than 1 to produce a combustion product stream. The invention also includes a system for practicing the method.

    A METHOD FOR ENHANCING MASS TRANSPORT IN FUEL DEOXYGENATION SYSTEMS

    公开(公告)号:CA2568552A1

    公开(公告)日:2007-07-18

    申请号:CA2568552

    申请日:2006-11-20

    Abstract: A fuel system for an energy conversion device includes a deoxygenator system with a multitude of flow impingement elements which are interleaved t o provide a fuel channel with intricate two-dimensional flow characteristics. The flow impingement elements break up the boundary layers and enhance the transport of oxygen from the core of the of the fuel flow within the fuel channel to the oxygen permeable membrane surfaces by directing the fuel flow in a direction normal to the oxygen permeable membrane. The rapid mixing of the relatively rich oxygen co re of the fuel with the relatively oxygen-poor flow near the oxygen permeable membrane enhances the overall removal rate of oxygen from the fuel. Because this process can be accomplished in fuel channels of relatively larger flow areas while maintaining laminar flow, the pressure drop sustained is relatively low.

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