The newer CO2 refrigeration systems being used in supermarkets have had problems whereby pipework or fittings failures have cause explosions.
Less technical details are available here.
http://www.youtube.com/watch?v=anVaq...layer_embedded
The newer CO2 refrigeration systems being used in supermarkets have had problems whereby pipework or fittings failures have cause explosions.
Less technical details are available here.
http://www.youtube.com/watch?v=anVaq...layer_embedded
Last edited by AndyD; 18-Jan-11 at 05:07 PM.
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The green bottles?
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Martin Coetzee
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Oh i get it, its cause the "bottles are green"
Quite a funny little clip though, those guys should be politicians
Garth
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Yep, CO2 is not combustible, it's just the gas escaping when pipework ruptures. The pressures are immense, over 100Bar (1500 psi) and there's quite an explosion when a rupture occurs.
CO2 is being heavily pushed for widespread use by governments. Large subsidies are available overseas to help offset the heinous costs involved for companies who make a commitment to use it. There have been a few incidents of failures where entire shopping centers have been evacuated and people hospitalized. I don't know if there have been any deaths yet but watch this space.
Green politics.
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What intrigues me is if i was to come up with a fridge that operated on chlorine gas, i would probably get locked up for terrorism or something as it could effectively harm people if leaking.
But this one which could leave people with shrapnel and quite possibly dead is OK? and then is it even really green??
As you say green politics
Garth
Electric fence Installation : www.midrand-electronics.co.za
Free Classified Adds : www.bgone.co.za
Martin Coetzee
Supplier of Stainless Steel Band and Buckle and various fastening systems. Steel, Plastic, Galvanized, PET and Poly woven.
We solve your fastening problems.
www.straptite.com
You may never know what results will come from your actions, but if you do nothing, there will be no results... Rudy Malan † 05/03/2011
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There is also generally, compressor oil being transported around the refrigerant circuit. This oil can catch fire of an occasion with some systems. Not sure how much of an issue this may be with CO2, but at up to 150bar in some applications, the results could be interesting.
In search of South African Technology Nuggets(R), for sale & trading in South East Asia.
I'm not a refrigeration engineer but I've spent the last three months doing lots of homework.
Oil catching fire might be a problem if a larger propane system had a big leak. Oil leaks from other refrigeration systems can be very acidic which is another problem. CO2 systems tend to run in a flooded state so liquid co2 could escape in the case of a large leak or pipework failure. CO2 much prefers to be a gas (or even a solid) a room temperature and pressure so the liquid would violently boil freezing anything it came into contact with. Cold burns to a person are just as bad and possibly life threatening as heat burns.
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