projects:air-for-workshops
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projects:air-for-workshops [2011/08/05 21:00] – [The solution] spinery | projects:air-for-workshops [2011/08/05 23:33] – [The solution] spinery | ||
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UPDATE: | UPDATE: | ||
- | I was doing a quick comparison between screw compressors from different companies and piston compressors, | + | I was doing a quick comparison between screw compressors from different companies and piston compressors, |
I was also doing volumetric calculations - the suggested 300 litre tank @ 30 bar holds: | I was also doing volumetric calculations - the suggested 300 litre tank @ 30 bar holds: | ||
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The amount of heat created could also be used to generate energy that can, in turn, provide several different tasks (turbocharge the compressor, precool air entering the compressor, etc). I have no data regarding temperatures generated bu the compressor, but it's a two-stage compressor. While it is crucial to maintain as low temperature as possible of the air that enters the second piston, beyond that, we have place for experimentation. | The amount of heat created could also be used to generate energy that can, in turn, provide several different tasks (turbocharge the compressor, precool air entering the compressor, etc). I have no data regarding temperatures generated bu the compressor, but it's a two-stage compressor. While it is crucial to maintain as low temperature as possible of the air that enters the second piston, beyond that, we have place for experimentation. | ||
- | I have a crazy idea regarding hi-volume sanding using this setup. Obviously, with large volumes of air running out of the sander' | + | I have a crazy idea regarding hi-volume sanding using this setup. Obviously, with large volumes of air running out of the sander' |
+ | https:// | ||
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+ | ____________ | ||
+ | OK, it appears I've been miscalculating the air consumption. The litres are calculated for atmospheric pressure, that is 1013 millibars (right?), which is a bit over 1 bar. | ||
+ | The correct calculations look as follows: | ||
+ | |||
+ | 300 litres of tank capacity * 30 bar max pressure = 9000 litres of air | ||
+ | |||
+ | 300 litres of tank capacity * 8 bar tool operational pressure = 2400 litres of air | ||
+ | |||
+ | So we have 9000-2400=6600 litres of air available before the pressure starts dropping below 8 bar tool operational pressure. If we assume that a tool uses 220 litres of air per minute, then | ||
+ | 6600/220=30 minutes of undisturbed operation. | ||
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+ | It should be able to survive around 6 minutes on the bigest meanest sandblasters :P The kind you use for bridges. And then it would take half an hour for the compressor to rebuild the pressure. | ||
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+ | And this means that we can use higher pressures for smaller sandblasters, |
projects/air-for-workshops.txt · Last modified: 2014/04/02 06:57 by 127.0.0.1