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  1. #1
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    Industrial Refrigeration Service

    Hi All

    I the UK industrial refrigeration service has previously been carried out on very large plant containing tonnes of anhydrous ammonia. Now, with the phasedown of HFC refrigerants, this refrigerant is being used for small applications like this http://https://www.maximuschillers.c...refrigeration/ The picture at the top of the page is of a blue Grasso compressor being used in a small 200Kw plant for the cooling of a data centre. Ammonia service and parts are still a lot more expensive than HFC but the gap is narrowing

    I am wondering if ammonia is becoming popular for non industrial applications in USA?
    Centrifugal, Water Cooled and Air Cooled Chillers. Ammonia Industrial Refrigeration Maximus Chillers Ltd.

  2. #2
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    Thread Starter
    Sorry, that link should have been http://www.maximuschillers.com/indus...refrigeration/
    Centrifugal, Water Cooled and Air Cooled Chillers. Ammonia Industrial Refrigeration Maximus Chillers Ltd.

  3. #3
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    I cut my teeth in the refrigeration industry as an apprentice at a now demolished brewery . I was an apprentice millwright and started my refrigeration career working on ammonia piston and screw chillers . Sulzers .
    I emigrated many years ago and here in Canada Ammonia is only really used in ice rinks thats about it .
    Ive seen all kinds of refrigerants come and go
    R12,500,502,13,113,11,HP62 etc etc .
    Were now entering into the era of R514 and R1233zde for pressure chillers
    High pressure is still R134a but thats on the way out to .
    The toy chest is officially full ... I got a new toy..... 2007 Aston Martin V8 Vantage and yes it still gives me goosebumps
    You bend em" I"ll mend em" !!!!!!!
    I"m not a service tech.. I"m a thermodynamic transfer analyst & strategic system sustainability specialist
    In the new big shop , greasin', oilin' . tweakin' n shinin' !!

  4. #4
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    Lots of meat packing planets and very large grocery distribution warehouses also use ammonia in Canada.
    Quote Originally Posted by Healey Nut View Post
    I cut my teeth in the refrigeration industry as an apprentice at a now demolished brewery . I was an apprentice millwright and started my refrigeration career working on ammonia piston and screw chillers . Sulzers .
    I emigrated many years ago and here in Canada Ammonia is only really used in ice rinks thats about it .
    Ive seen all kinds of refrigerants come and go
    R12,500,502,13,113,11,HP62 etc etc .
    Were now entering into the era of R514 and R1233zde for pressure chillers
    High pressure is still R134a but thats on the way out to .
    Sent from my SM-G965W using Tapatalk

  5. #5
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    I have worked with many refrigerants ; never R-717 .

  6. #6
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    I work on ammonia systems. All are large systems, mostly food processing plants.

  7. #7
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    Thread Starter
    Thanks for your responses guys! A similar picture over here but ammonia is getting more popular. I went over to meet a chiller company in Denmark- ammonia is very popular over there even to cool a small office! They are very environmental so a wind farm making electric to power small ammonia plant in a shop is common place

    I heard you where from over here Healey- I have been to Medicine Hat when I was in the Army- great place Canada. We went in the summer and got eaten alive by mosquitos Arrrrhhhh!!!!! If you are Canadian you build up an immunity but we got eaten alive!!!!
    Centrifugal, Water Cooled and Air Cooled Chillers. Ammonia Industrial Refrigeration Maximus Chillers Ltd.

  8. #8
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    some chemical plants use ammonia in their processes, so there are some chillers in the industrial setting, but yeah, large cold storage warehouses, that's about it.

    well, other than RV's and campers, there's a lot of those units that use ammonia......not common at all for comfort cooling though.


    there are a few test markets in the US using CO2, and some of the vending machine companies are using it in their new units. It looks like the market here is moving more toward flammable refrigerants.

  9. #9
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    Thread Starter
    Yeah- the little units over here are moving to flammables too. The camper van thing- I think they are absorption machines- where heat is used to work the process
    Centrifugal, Water Cooled and Air Cooled Chillers. Ammonia Industrial Refrigeration Maximus Chillers Ltd.

  10. #10
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    There is a ton of ammonia systems in Chicago. All are warehouse, packaging and processing type applications. And ice rinks, but many are going away from that.

    Nothing small in this market, and I dont see that changing in my lifetime.


    Sent from my iPhone using Tapatalk

  11. #11
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    Hi heatingman

    We've still got all the juicy big plants over here too: I've just recovered nearly 17,000kg into 40 430kg recovery cylinders at a food processing plant so the pipe welders can modify the plant. Boring waiting for it to come out! I have an industrial ammonia recovery unit using push/pull and a liquid pump to speed it up out of the plant. Biggest job I have done. I suppose it's the same principal to get it out but just takes a lot longer! Got to get it all back in next
    Centrifugal, Water Cooled and Air Cooled Chillers. Ammonia Industrial Refrigeration Maximus Chillers Ltd.

  12. #12
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    A number of ice rinks were headed towards ammonia, but the accident in Fernie, BC put a hold on a lot of that.

    While the "Tree-huggers" would love it if we went to all ammonia/natural refrigerants, there are too many lawyers in the U.S. to make it an easy transition. One of the big barriers was the B2 rating of ammonia, but now that the new halocarbons forced the "L" to come into play, ammonia has the B2L rating. For better or worse, that's getting a lot of people looking at it again.

    The last IIAR (www.iiar.org) meeting was held in conjunction with the North American Sustainable Refrigeration Council (nasrc.org), which is the organization promoting ammonia and CO2 for supermarkets and similar refrigeration systems. The supermarket people made the industrial folks pretty nervous. The supermarket people didn't acknowledge many of the safety hazards of ammonia and wanted to charge forward.

  13. #13
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    Majority of new supermarket builds in Canada are CO2 instead of HFC's. Ammonia would be an unlikely choice due to supermarkets not wanting to pay for all the extra safety precautions.

    Sent from my SM-G965W using Tapatalk

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