Air Motors: Difference between revisions
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=Power Out= | =Power Out= | ||
*1 cubic meter of air storage - at 200atm - gets you 7000 cfm at stp. Since we need to save 10 atm to run, have 190 atm available - so 5% negligible loss - most is usable air. This is 500 minutes of air - 8 hours - of 300W - or 2.4kW hrs! This is just plain adiabatic. | *1 cubic meter of air storage - at 200atm - gets you 7000 cfm at stp. Since we need to save 10 atm to run, have 190 atm available - so 5% negligible loss - most is usable air. This is 500 minutes of air - 8 hours - of 300W - or 2.4kW hrs! This is just plain adiabatic. | ||
*Thus, having access to 1 cu m of stored air - is key. | *Thus, having access to 1 cu m of stored air - is key - for an inefficient storage system. | ||
*. | |||
Revision as of 16:55, 28 February 2021
- This one says 70% efficient - really? [1]
- CFM of 20 gets 1 hp about. 1 cu m is 35 cf. 1 cu m at 190 atm is 7000 cf, at 20 cfm gives 350 minutes or almost 6 hours.
- 7 cfm, 0.2 hp - $250 - [2].
- 14 cfm gets me the right power - 0.4 hp or 300W.
Power Out
- 1 cubic meter of air storage - at 200atm - gets you 7000 cfm at stp. Since we need to save 10 atm to run, have 190 atm available - so 5% negligible loss - most is usable air. This is 500 minutes of air - 8 hours - of 300W - or 2.4kW hrs! This is just plain adiabatic.
- Thus, having access to 1 cu m of stored air - is key - for an inefficient storage system.
- .