Results 1 to 5 of 5
  1. #1
    Join Date
    Jan 2009
    Location
    lleida
    Age
    50
    Posts
    47
    Rep Power
    0

    ammonia detector in secondary fluid



    Hi,
    could someone give me some information about ammonia concentration detectors in secondary refrigerants (PG, EG, Temper...)
    I have the reference of Beutler in Germany.
    I would be very grateful if you could also inform me about good practises for maintaining-controling this installations, like:
    -maintenance for plate heat exchangers (ammonia, PG)
    -concentration control and props of (EG, Pg...).
    -filtration system (by-pass)
    - By-pass in heat exchanger secondary fluid side for a circuit cleaning before start up.

    ...and any other suggestions
    Thanks a lot in advance!



  2. #2
    Join Date
    Mar 2009
    Location
    U.S.A.
    Posts
    320
    Rep Power
    20

    Re: ammonia detector in secondary fluid

    Is this system closed-loop on the glycol side? Or are there open top tanks or spray heat exchangers or concentrators or similar involved?

    If this loop is closed, most would recommend a refractometer for concentration control; such as:

    http://www.misco.com/index.php

    http://www.refractometer.com/


    For a closed loop kept consistently clean these would be more cost effective than a Specific Gravity Based device, though those will often work even with a high level of contamination in the mix....


    http://www.emersonprocess.com/mobrey...s/ps001039.pdf



    There are quite a few detectors for dissolved ammonia because of the relative sensitivity of certain wastewater treatment arrangements to the presence of even a tiny amount of ammonia...

    http://analyticaltechnology.com/cms/....aspx?tabid=92

    Pricey way to get there but full time and none sampling....

    There is probably a simple way to rework a glycol makeup tank to sample regularly and do the filtration as well as the measurements....Potentially you would then reduce the ammonia detection topic to an atmosphere monitor sitting above the liquid level of the tank, which appears to permit the use of ammonia detectors based on atmospheric concentration...those devices are a-plenty.

    With a little effort, you might even be able to set up a sample and makeup arrangement that would monitor and add inhibitor, like you were dosing a water tank; though that may not be necessary for an active, closed loop system.

  3. #3
    Join Date
    Mar 2009
    Location
    1
    Posts
    6
    Rep Power
    0

    Angry useful tips

    This is great! It really shows me where to expand my blog. I think that sometime in the future I might try to write a book to go along with my blog, but we will see…Good post with useful tips and ideas

  4. #4
    Join Date
    Jan 2009
    Location
    lleida
    Age
    50
    Posts
    47
    Rep Power
    0

    Re: ammonia detector in secondary fluid

    Thank you, sterl this information will be very helpful

  5. #5
    Join Date
    May 2008
    Location
    Sharjah
    Age
    38
    Posts
    15
    Rep Power
    0

    Re: ammonia detector in secondary fluid

    MiniCAll III from GFG is a good option to measure the amount of ammonia in water.

    Anybody knows the maximum safe level of ammonia in water?

Similar Threads

  1. ammonia refrigeration system
    By Lc_shi in forum Fundamentals
    Replies: 48
    Last Post: 25-06-2010, 10:03 AM
  2. Want to be trained as an ammonia operator
    By Randy Williams in forum NH3
    Replies: 7
    Last Post: 26-11-2008, 09:15 PM
  3. Secondary Ammonia System
    By refchick in forum New Technologies
    Replies: 0
    Last Post: 05-11-2008, 10:33 AM
  4. The Mysteries of Ammonia!
    By Grizzly in forum Ye Old Wifes Tales
    Replies: 63
    Last Post: 29-08-2008, 03:11 PM
  5. Replies: 21
    Last Post: 03-02-2008, 06:10 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •