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paulHarkonen t1_j1a7wpz wrote

Reply to comment by whereisthenutella in Why do we use phase change refrigerants? by samskiter

No, I meant liquefaction. It's a peak shaving facility so they take from their distribution system, liquify for storage in summer and then re-gasify for injection in winter.

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whereisthenutella t1_j1a8xxy wrote

Ahh okay I haven't encountered cases of that.

At least in Europe there are some underground storage facilities, basically stored in underground caverns (wells) for that very purpose.

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paulHarkonen t1_j1aa45p wrote

They use depleted wells for long term storage of compressed gas but some places also use LNG for on system peak shaving. It sounds from your comment like it's reasonably common to use some processed natural gas (presumably with all the heavies extracted) as the refrigerant feeding the cryogenic heat exchangers.

Thanks.

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