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  1. ramblin

    Ejector Pump Cavitation

    If I base the vapor pressure on the primary flow temp ie 250 I get a much higher required secondary pressure than if I base it on the secondary temperature. Somehow it makes sense to me that the true requirement would depend on both temp's. I don't really have the luxury of being conservative...
  2. ramblin

    Ejector Pump Cavitation

    I'm using an ejector pump driven by high pressure fuel boosting a low pressure (~ 2 psia) source of fuel by 10-15 psi. It is advantageous for my system to use a high temperature (~250 F) primary flow. My concern is that this high temperature translates to a high vapor pressure and increased...
  3. ramblin

    Pressure drop through strainer mesh

    Try treating it as a short orifice with the contracted area equal to the open area of the mesh.
  4. ramblin

    Flat Horizontal Plate

    A few comments, 1) any object you put in the room, including the walls, will be subject to radiation heat transfer from the plate. in this case (1000 F), the radiation would probably be an overriding or, at the very least, a significant factor. 2) if you're just looking for air temp and...
  5. ramblin

    Pressure Drop to Heat Transfer Coefficient Analog for a Heat Exchanger

    I have a finned tube in tube heat exchanger for which we can measure various global parameters - hot and cold side pressure drop, hot and cold side delta T, hot and cold side mass flow for many combinations of running condition. I'm trying to break the data down into an accurate assessment of...
  6. ramblin

    Turbine trip during run-up

    Where are the temperature measurements made, ie. compressor exit, combustor exit, hp turbine exit? Isn't there a detailed course of action recommended by the manufacturer of the engine?

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