How to / DIY > Everything else
Cold energy Storage MkIII
ajaffa1:
Very much like the idea of burying an IBC, should give a very good thermal mass for both hot and cold storage provided it is well insulated. It might be a good idea to ensure that you have sufficient space to increase the capacity by burying a second at a later date.
Looking forward to hearing how well this works.
Bob
AdeV:
--- Quote from: dieselspanner on September 03, 2019, 08:51:35 AM ---...no danger of it splitting and wouldn't cost a lot either.
--- End quote ---
...and even if it DID split, all it's going to do is water a patch of the garden from underground ;D
dieselspanner:
As for the insulation, two thoughts.
First, there must be loads of polystyrene packing you you could break up small and use. the whole thing is going to be over the top as far as storage goes, so less than perfect insulation shouldn't be a problem, make the hole 200 mm bigger all round and throw in lots.
Second, when I did my barge I found an outfit in Wales that bought up all the damaged sheets of foil backed insulation from two of the big British manufacturers - Selotex and Kingspan, I think. As I only wanted it in small areas a palette load went a long way and was very cheap. There's got to be someone doing similar 'Down Under'
Cheers
Stef
ajaffa1:
Hi Glort, if I was still living in the UK I would be sitting my IBC on a 150 mm polystyrene base and then paying the local insulation company to fill the void around it with spay foam insulation. My understanding is that spray foam is very expensive here so I would be very tempted to collect as much polystyrene as I could, put it through a cheap garden shredder and use the resulting small beads for back fill. If you are concerned about the ground collapsing and crushing you tank vermicucrete might be the answer, this is a mixture of sand, cement and vermiculite. We used to use it for lining chimneys between the brickwork and the flue liner: strong, cheap with good insulating properties.
Bob
dieselspanner:
I've just had a delivery of Land Rover spares from the UK and the voids around the little boxes, in the big box, was (were?) filled with polystyrene packing 'beads', the things that look almost edible. They have to be cheap, surely........
Bob, as for crushing, once the cubes are filled with water they will be ok, our septic (sewage) tank is poly and around 6 M3 (room for ribaldry at my expense here, lads!) and we are always warned not to leave it even partially empty after cleaning.
Leaving the IBC (s) in the cage would give peace of mind.
I like the garden shredder idea!
Cheers
Stef
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