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Thread: Organic Refrigerants
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17-02-2009, 10:57 AM #1
Organic Refrigerants
If anyone knows about these refrigerants i would like to know what the benefits of these are? And what is involved in retrofitting of existing R134a systems.
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17-02-2009, 11:21 AM #2
Re: Organic Refrigerants
All halogen-free refrigerants are ORGANIC. By definition, organic is a compound who comprises one or more of these atoms: C, H, O, and N.
What exactly are you looking for? Ammonia, hydrocarbons, co2, n2o, else?
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17-02-2009, 01:28 PM #3
Re: Organic Refrigerants
Hydrocarbons i believe. I just wanted to know if old systems could be retrofitted?
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17-02-2009, 04:11 PM #4
Re: Organic Refrigerants
They may or may not, depending on the actual system. But more important is to assess:
1) why would one want to retrofit R134a with hydrocarbons, as R134a is perfectly legal for decades to come
2) hydrocarbons are flammable. Have an assessment been made on possible compliance to such risks?
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18-02-2009, 12:33 PM #5
Re: Organic Refrigerants
Simply a hypothetical. I was asked by someone who is interested in changing systems not R134a but R404a for reasons that are unknown to me yet but they are large commercial and industrial systems.
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18-02-2009, 01:55 PM #6
Re: Organic Refrigerants
Originally Posted by Fridgy Dave
If the system is existing and has copper pipes this will limit your choices to one of the commercially available refrigerants (not organic).
You also have to be aware of any local safety codes that may determine which refrigerant you can use in a specific area of classification. The classification may be industrial, which then might allow the use the ammonia. Ammonia is relatively cheap per pound (kg). Some of the other non-organic refrigerants would be extremely expensive in a large system charge.
This is not an easy answer to provide...If all else fails, ask for help.
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