Compressing air always involves heating it up and that thermal energy is of the same order as the stored mechanical energy. For good efficiency, it would be necessary to insulate the stored high pressure air which would limit the time period it could be used for. Also, very high temperatures would be involved.timMoore said:If you want to use compressed air and water there are a few energy storage options.
How does that differ from gravity feed?... other than needing a bladder?simpleengr said:I don't understand why everyone is stuck on the same basic perception, focusing on the how not the problem.
Use water to do the job. Use water in a bladder type action on top of the water being used, then when the water level gets low, transfer the water from the bladder into a side storage to remove the force being applied from above, then transfer the water that was in the bladder to the usage tank it had been applying pressure to, then either size those tanks so that they hold enough till pumps can fill the bladder up again, or manually fill it. No need for complex pneumatic systems or pumps.
But for dishes and hand washing, yes foot driven pneumatic pumps are simple and free from needing expensive pipelines and compressors with huge storage tanks.
Honestly, with all that 'transfer' it sounds like a really complicated steampunk fantasy about plenty of brass knobs'n'stuff.simpleengr said:Use water in a bladder type action on top of the water being used, then when the water level gets low, transfer the water from the bladder into a side storage to remove the force being applied from above, then transfer the water that was in the bladder to the usage tank it had been applying pressure to, then either size those tanks so that they hold enough till pumps can fill the bladder up again, or manually fill it. No need for complex pneumatic systems or pumps.