OP
AnthonyIDB
New
Thanks for your input everyone ... So here's what I've gone ahead and done ...
I removed the Capitanos stage one/two "pseudo cooler", and installed a "12 row" car oil cooler, (rated at 10 Bar WP), directly in front of the existing fan pulley using stainless steel braided teflon piping, along with a, (10 bar rated), water separator directly after it. I also concurrently replaced my motor pulley, correcting my compressor, (and fan), speed from some +-990 RPM to +-1275RPM.
The jury is still out on on real improvement(s), save for the following basic testing;
Bypassing my bank, and direct filling a 10 l tank from 55 to 240 Bar hot, with some 1850 litres of air, did manage to extract some 30 ml of water in my new water extractor, (I was expecting more), nonetheless ... I wouldn't necessarily call this mod a total waste of time.
Stage two's inlet temperature is down considerably, (from 47 to 25 degrees C), confusingly though, I have much the same stage one/two pressure of just under 6.5 Bar, (I was expecting half a bar drop with the change in temperature), and stage two/three's inter-stage temp is also slightly lower.
My new water separator is a cheapo commercial manual flush unit, (I wasn't prepared to go auto-drain whilst testing), and as the cooling and auto drains on stages two/three and final are still standard, am not concerned about any back pressure differentials for now, albeit that their respective downstream moisture catchments should have reduced by some 30 ml, (a nice bonus here might well be an extended filter life?).
My calculated fill rate is up from +-110 l/min to slightly above the rated spec of 140 l/min, however I would like to recheck this by backtracking the pulley change and the cooling change to find out where the improvement(s) came from.
I've also put my feelers out for a similar "oil cooler" capable of a 60+Bar working pressure, to replace the stage two/three pseudo cooler, and will feed back once I've concluded that testing. Clearly the "oil cooler" route is more efficient than the standard "pseudo coolers", to which I plan to use separate electric fans on them, leaving the existing compressor fan pulley to take care of block cooling.
Stay tuned
I removed the Capitanos stage one/two "pseudo cooler", and installed a "12 row" car oil cooler, (rated at 10 Bar WP), directly in front of the existing fan pulley using stainless steel braided teflon piping, along with a, (10 bar rated), water separator directly after it. I also concurrently replaced my motor pulley, correcting my compressor, (and fan), speed from some +-990 RPM to +-1275RPM.
The jury is still out on on real improvement(s), save for the following basic testing;
Bypassing my bank, and direct filling a 10 l tank from 55 to 240 Bar hot, with some 1850 litres of air, did manage to extract some 30 ml of water in my new water extractor, (I was expecting more), nonetheless ... I wouldn't necessarily call this mod a total waste of time.
Stage two's inlet temperature is down considerably, (from 47 to 25 degrees C), confusingly though, I have much the same stage one/two pressure of just under 6.5 Bar, (I was expecting half a bar drop with the change in temperature), and stage two/three's inter-stage temp is also slightly lower.
My new water separator is a cheapo commercial manual flush unit, (I wasn't prepared to go auto-drain whilst testing), and as the cooling and auto drains on stages two/three and final are still standard, am not concerned about any back pressure differentials for now, albeit that their respective downstream moisture catchments should have reduced by some 30 ml, (a nice bonus here might well be an extended filter life?).
My calculated fill rate is up from +-110 l/min to slightly above the rated spec of 140 l/min, however I would like to recheck this by backtracking the pulley change and the cooling change to find out where the improvement(s) came from.
I've also put my feelers out for a similar "oil cooler" capable of a 60+Bar working pressure, to replace the stage two/three pseudo cooler, and will feed back once I've concluded that testing. Clearly the "oil cooler" route is more efficient than the standard "pseudo coolers", to which I plan to use separate electric fans on them, leaving the existing compressor fan pulley to take care of block cooling.
Stay tuned
