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Measure & Analyze: Live Q &A, March 1st from 10am - 10:45am CST

 Welcome! Emerson experts below will be here LIVE on March 1st, 10:00am - 10:45am CST to help you tackle your toughest challenges...

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Best Regards,

Rachelle McWright: Business Development Manager, Dynamic Simulation: U.S. Gulf Coast

51 Replies

  • In reply to Rachelle McWright:

    Good to hear that the 5402 is working great! I can think of a couple of answers, but without accessing any silo drawings, I can just give you some very rough guidelines:
    1. It can be a simple matter of adjusting the noise threshold for the lower part of the vessel - typically, the signal become weaker with the distance.
    2. If the radar is installed close to the silo wall, I would suggest you to try to move it to a position closer to the silo center (best practice is a position at 2/3 tank radius)
    3. You can use an 8" parabolic antenna instead. It has a narrower beam, focusing the energy. It also come with a swivel connection, so that it is possible to aim the antenna a bit closer to the center of the pile.

    I would higly recommend you to contact your local Emerson representative and, if possible, supply silo drawings and plots from the device in order for us to investigate the matter further!

  • I am curious if other technologies besides gas and flame detectors are beneficial at detecting hazardous material releases.
  • This question came in from I would like to ask a question that has two parts. 1) In our area, the start of a flare event is defined as when the flow exceeds 0.1 feet per second. We received lots of comments about noises at
    0.1 feet per second. Are there any flow monitors that can measure 0.1 feet per second accurately with limited amount of noises? and 2) The vent gas must break a water seal before it is vented to the flare
    How can one assure that the level of water in the water seal is not compromised? Is there a way to accurately measure and record the level of water in the water seal? Thank you.

    Best Regards,

    Rachelle McWright: Business Development Manager, Dynamic Simulation: U.S. Gulf Coast

  • In reply to Edward Naranjo:

    Toxic and combustible gas detection may be used in several situations, but may not always be the best choice for alerting personnel to the presence of hazardous substances. Other technologies that are useful are temperature transmitters, liquid gas analyzers, liquid level meters. The use of liquid detection may also be more effective than gas detection in those cases where the released material has a low vapor pressure and its vapors are heavier than air.
  • In reply to Rachelle McWright:

    It will be difficult to measure a 0.1 feet per second flow rate at near atmospheric pressures "accurately". There are many variables that will affect the ability to measure this low flow rate. Probably the most likely candidate for reliably detecting the flow is a thermal mass flow meter, but its accuracy will be in question. Dependent upon system design, water seal level can usually be measured by a differential pressure measurement.
  • Thanks so much to everyone who joined us today! If you have additional questions, we kindly suggest you post them in our Measure & Analyze Groups. You can find these groups (in the navigation) on this page; we hope you'll join one or more: emersonexchange365.com/.../

    These and other experts (some of which may be your peers) are here in EE365 to help you learn best practices and solve problems on a day-to-day basis...

    Best Regards,

    Rachelle McWright: Business Development Manager, Dynamic Simulation: U.S. Gulf Coast