Why ammonia refrigeration system !
Why ammonia refrigeration system !
(OP)
Why ammonia refrigeration is preferred over conventional refrigeration when it comes to industrial scale. Also i have seen ammonia refrigeration has been used for central A/C system in a commercial building.Is there any reason other than ammonia is cheaper and it is environment friendly and does not cause the kind of damages that fluoro carbons do.





RE: Why ammonia refrigeration system !
No.
Apart from that this also do maintenance and parts cost cheaper.
RE: Why ammonia refrigeration system !
RE: Why ammonia refrigeration system !
Mike Halloran
Pembroke Pines, FL, USA
RE: Why ammonia refrigeration system !
It was a common home refrigerent in 1950's and was used until the freons became available. Copper piping is permissible.
Today it is most often found in industrial and commercial systems.
The principle hazards is that it is a flammable gas.
RE: Why ammonia refrigeration system !
One thing about ammonia, nobody has to "wonder if there's a leak". ;)
RE: Why ammonia refrigeration system !
Good things.
Ammonia leaks are easier to find that freon leaks.
It is a lot cheaper than freon.
There is only one grade no cross contamination.
No harmful by products after running for years.
An ice house condenser is very simple and last forever.
It doesn't take a specialist with special equipment to work on the ammonia equipment.
RE: Why ammonia refrigeration system !
JMW
www.ViscoAnalyser.com
RE: Why ammonia refrigeration system !
RE: Why ammonia refrigeration system !
With modern available technology and off the shelf equipment, an inferior hazardous cooling/refrigeration system using NH3 Ammonia would be a system using N2 Nitrogen--------
At 74th year working on IR-One PhD from UHK - - -
RE: Why ammonia refrigeration system !
The refrigerant was about 78% N2 (ambient air off the street.
A blower forced the air through a series of heat exchangers and turbo expanders (or turbo chargers). Air temperatures close to minus 100 degrees Fahrenheit were developed.
I was on a project where I was living and working with some of the operators from that system. They remembered it as prone to "crashing" and very expensive to run. And this was in the years when electricity was considered "cheap" energy.
The operators commented that the turbo-chargers on my Cummins Gen-sets looked like the turbos used in the N2 refrigeration system.
Yes, you can refrigerate with N2 with off the shelf components.
Yes it has been done.
Yes the contribution to green house gas emissions by leaked refrigerant is nil.
No it may never be done again.
And there are constant loss systems using liquid N2.
Bill
--------------------
"Why not the best?"
Jimmy Carter