Thanks for that. My mechanical ability and McGiverability is excellent. My car I were recently featured on the cover of a magazine because I built it myself and made a crapload of power and fast quatermile times for very little money
using alternative ideas. I had no real previous experience in doing engine
conversions etc and just read what people had to say on forums
like this (with large grains of salt) and came out on top.
A large part of doing something like this is finding out all the various ways to do it then pricing the parts and weighing advantages. At this stage I still need to learn a lot about these systems. There are so many pumps and motors out there I just don't know where to start. I would probably base my system around what motors and pumps will most suit my needs.
At this stage if I could find a cheap pump with an AC motor already attached, I would run it off an inverter
. Hence my failed idea of a pressure washer due to reliability
. Inverters seem to be cheap off ebay. (note I would also carry a 240v generator
on board). I like the idea of electric
as if my engine lets me down I can still make water. I realize it will tax the living crap out of my batteries. But in the event of an engine failure I will still have the ability to make water from renewable energy (albeit very sparingly) and I will have my 240v petrol generator
Under normal circumstances I would size it so I can run it for an hour or so whilst my engine is running so my alternators are supplying the power rather than my battery
banks. This may require the use of 2 alternators on my engine (which is a good idea for redundancy anyway). I would want to get enough water to fill my tank. I am looking at buying trimarans so I would have small tankage for reduced weight and fill the smallish tank every few days (prob around 100L).
How is my line of thinking so far?
Here is a list of membranes and pressure vessels.
Part Size (inches) Square Test Flow Stabilized Quantity Pricing (each)
Number Diam. x Length Feet PSI GPD Rejection
60. SW30-2514 2.5 x 14 61/2 800 150 99.4 $ 171
61. SW30-2521 2.5 x 21 13 800 300 99.4 $ 171
62. SW30-2540 2.5 x 40 29 800 700 99.4 $ 190
63. SW30-4021 4.0 x 21 33 800 800 99.4 $ 302
2521 1000 psi $219
2540 1000 psi $319
4014 1000 psi $-----
4021 1000 psi $369
4040 1000 psi $456
It seems the 700gpd version is a good price
for the membrane $190. But it is 40" long. The 800gpd verison is only 21" long but it costs $302.
What sort of pumps would I be looking at for membranes of this size? IS there a percentage rating I need on the pump compared to GPH of the membrane? EG I need a pump that has 4 times the flow at 800psi of the product rate of the membrane?