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  1. traindriver

    Heat Generated by Pressure Drop

    Has anyone had experience with generating heat (to heat a fluid to 240 F) by using pressure drop through an orifice plate? I want to heat hydraulic oil from 70F to 240F without using electric heaters, just pressure drop through a nozzle or an orifice. Any help with general formulas would be...
  2. traindriver

    Info needed on Pall Disc Tube membranes for desalination

    Does anyone have experience with Pall Disc Tube membranes for seawater desalination applications? I am looking for new technologies with regards to small desal system (upto 10000 GPD)design. The goal (as always) is trying to reduce operting and maintenance costs. What about energy recovery...
  3. traindriver

    Jacking Forces

    I am researching (trying to understand) jacking forces produced by SLA suspension systems. I think that jacking forces can be produced by both elastic (through the springs)and geometric (through the linkages) lateral force inputs. Can anyone help me plow through this stuff. Any help is most...
  4. traindriver

    [B]Pump Specification 600GPM

    I need some assistance specifing a pump type (impeller, PD, screw, lope, etc) that will perform to these specifications: 600 GPM Head 400 ft Suction 10 ft This will be pumping deisel, gasoline, and jet fuel. It is a transfer pump system. My project is to integrate an "off the shelf" pump into...
  5. traindriver

    Need Formulas for Calculating Aero Forces

    Can anyone provide the basic calculations for converting Cd and Cl in real force numbers. I have volumns of tunnel data in coefficient form and I need to convert it to force numbers so the end user can understand it. Thanks
  6. traindriver

    Kinematic and Complience Testing

    Does anyone have info and/or links to available K&C rigs available to test on in North America? Any info their operation, data output, how to use them, what can be learned or a test plan will be appreciated.
  7. traindriver

    Roll Center Position & Migration

    Any thoughts on roll center position and migration during a roll/dive event. I am working with a non-parallel 4 link suspension typically found on front engined, rear wheel drive US autos. I would think that the front roll center position should stay as "calm" (centered) as possible...
  8. traindriver

    Tire Grip

    Does anyone have any input on the physics of tire grip and what is really happening at the contact patch (CP)? I have read Chuck Hullman's SAE paper and his theory of delayed localized heating at the contact patch. How does CP area relate to overall laterial grip since friction is the normal...

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