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Scale. A small personal fridge in an RV or small apartment isn't a big deal. But a system big enough to power comercial refrigeration or air conditioning to a
by sandworm101 4y ago
Scale. A small personal fridge in an RV or small apartment isn't a big deal. But a system big enough to power comercial refrigeration or air conditioning to a residential building will involve enough coolant that any leak would be serious problem.
- namibj 4y agoYeah, but indirect (with e.g. water/glycol between the condenser and the indoor air handler) systems can be combined with scrubber tanks (basically just water+baffles, I think) that the blow-off from a leak or a pressure relief valve is forced through, in order to contain most of the ammonia.
- KennyBlanken 4y agoMany supermarkets use ammonia refrigeration. Many food warehouses and packing plants use it as well- resulting in incidents fairly often. It's still used.
- sandworm101 4y agoFew people sleep in supermarkets.
- ncmncm 4y agoAnhydrous ammonia is the favored refrigerant for big commercial and industrial systems. These need professional management anyway, and the plumbing containing ammonia tends to be outdoors. Gaseous ammonia is buoyant, so goes up. The amount of anhydrous ammonia that would be needed to operate an RV fridge could kill you easily. Operation in an enclosed space is another source of risk.