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Recent content by dMemphys

  1. dMemphys

    Simultaneous measurement of voltage by two computers

    Hi! Thank you both for your answers, they actually helped me direct my search. Dataforth, from which we got the signal conditioners, actually already sells redundancy hardware. This hardware actually seems to be dumping all the measurements on a ModBus network and, hence, allows multiple...
  2. dMemphys

    Simultaneous measurement of voltage by two computers

    Hello everyone, For a test bench we're finalizing, we have a few sensors (PT, TC, etc...) that are amplified to -5/5V by Delmation modules, multiplexed and recorded on a computer by an ADLink PCI card. As some of these measurements are critical, we need to double the recording devices (the...
  3. dMemphys

    High pressure vessel

    Hello gr2vessels, You raise a valid point but you're mistaken about my intentions. My goal is simply to have a way to have a gross idea of the dimensions of the autoclave. We intend to monitor reaction rates at high pressures and wanted to port a low pressure version of this device to a high...
  4. dMemphys

    High pressure vessel

    Hello! I'm currently working on the design of a relatively high pressure vessel: a 20cm-inside-diameter and 45-inside-height vessel containing 1000bar oxygen. My goal, here, is to make my own idea of the beast first and to evaluate grossly its cost. Fully detailed design would be contracted...
  5. dMemphys

    Rapid valve opening, Adiabatic compression and Oxygen

    Hello! Thanks for your reply! All calculations have been made so that 1000bars could be achieved, yes. We have acquired a high pressure compressor (Howden - Burton-Corblin). I'm thinking of some kind of water hammer model, but it's usually applied when a valve is suddenly closed. Can it be...
  6. dMemphys

    Rapid valve opening, Adiabatic compression and Oxygen

    Hello everyone! I'm currently on a project involving the oxygen compatibility of alloys. We are building a experimental setup which looks will recreate an quasi-adiabatic compression of oxygen onto a piece of metal (and see if it burns, or not). The setup looks like this: 1000bar vessel...
  7. dMemphys

    Condensing methane by nitrogen vaporization

    Hello! And thank you for your answer! The flow rates are, indeed, relatively low (max: 50gr/s). And I agree I didn't really say much about the work we're used to do. In fact, we usually have aerospace contracts and are required to test joints or bearings for oxygen pumps and other critical...
  8. dMemphys

    Condensing methane by nitrogen vaporization

    Hello everyone! I'm currently working in cryotechnics and would need a new liquid methane line. We're investing the possibility to use our stock of Liquid Nitrogen to liquefy Methane coming in bottles (180bars). [Note: this project is temporary, so we'd like to go as low-cost as possible] Thus...

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