Alright, I'm going to need some help here. On the face of it it looks as if I can get a 60 psi compressor running off 12V DC (draw on the electrical system will have to be evaluated) which I can use to do this. What is really doing my head in here is trying to calculate flow. What really messes things up is that in air atomization nozzles (which seem to produce the smallest water droplets) increasing air pressure will reduce the amount of water flow (presumably because of the liquid that the air displaces).
Now given that the tables for these nozzles suggest water pressure of around 50-70 psi and a Shurflo pump will produce around 100-150 psi we should be able to increase liquid flow, but would this then require a higher air pressure to successfully atomize the increased volume of water? Is 60 psi of air enough or should I be looking at more? I have located a 100 psi air pump but it flows less volume of air. I still can't get my head around whether pressure or volume is most critical for atomization.
There are probably too many variables here for anyone to give me a straight answer, but can someone point me in the right direction. Someone said that good atomization rather than flow is the key, but a certain amount of flow will presumably be necessary to pull sufficient heat out to make the compression isothermic (or as close to isothermic as possible).
So lets just look at flow for a moment. I can bench test how much water the system flows in a min, by experimenting with air and water pressures.
I have a 2.3 litre engine and a turbo rated at approximately 65 lbs/min (however that may have been reduced by the fitment of the smaller exhaust housing). How much water do I need to do what I am trying to do and would the volume of water injected need to be different if I set the injection point much lower in order to assist in spool up.
I have a lot of this stuff figured out and can do it, but I really need help working out the flow calculations.
My other concerns are: -
(a) Will injecting too much water cause it to puddle in the intercooler creating problems?
(b) Will it be necessary to inject more water post intercooler for knock suppression?
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