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LPM / Water Usage Calculator


How much HHO is sufficient to improve fuel efficiency of an engine?

The question has been debated for a long time, and there is probably no definite answer. I say that because there is no precise way to measure the HHO realistically. There are just too many types of measuring devices being used, and each one of them provides different measurements. People are using oxygen meters, hydrogen meters, air meters, natural gas meters, welding gas meters, and even some hydroxy meters which are manufactured by reputable companies.

If you are using an Air meter to measure the HHO, then the amount of gas you are measuring is way more than what is actually being produced. So 1/2 LPM per Liter of engine displacement may be a good rule of thumb for you to use to.

If you are using an Oxygen meter to measure HHO, then the amount of gas you are measuring is still more than what is actually being produced. So 1/4 LPM per Liter of engine displacement may be a good rule of thumb.

If you are using my Cell Configurator to determine what Faraday says is capable of being produced, then 1/8 LPM is probably about as close to being correct as we can guess. I have witnessed 300 to 600 ML PM increase fuel efficiency on big V8 engines; without causing unwanted computer codes. This is not to say that 1/8 LPM is maximum efficiency; it is just a good starting point.

Is more better?
Well, yes, of course. But it comes at a cost. The harder the engine works, the less efficient it becomes. The hydrogen generator puts a load on the alternator, which in turn puts a load on the engine. The more HHO the engine gets, the less fuel it needs; assuming the emissions computer is accepting and allowing the HHO to do its thing. Engine Timing may need to be adjusted, but that is a given.



Estimating Water Use - Per LPM of HHO

I have been asked, many times, how much water the Cells use per hour. I think, now, I can shed some light on the subject. It is not an easy answer, but I think I have enough information to get you in the ball park.

We are told that, 1 Liter of water can make 1860 Liters of HHO gas.
That is, 1000 Milliliters of water can make 1860 Liters of HHO, or 1,860,000 Milliliters.
Thus, 1 Milliliter of water can make 1.86 Liters of HHO, or 1860 Milliliters.

LPM x 1000 / 1860 = Milliliters Per Minute of Water   x 60 = Milliliters Per Hour

  Water Usage Calculator (runs in Excel or OpenOffice)


LPM HHO ML Water Per Minute ML Water Per Hour  
0.100 0.0538 3.23  
0.500 0.2588 16.13  
0.750 0.4032 24.19  
1 0.5376 32.26  
1.5 0.8065 48.39  
2 1.0753 64.52  
2.5 1.3441 80.65  
3 1.6129 96.77  
3.5 1.8817 112.90  
4 2.1505 129.03  
4.5 2.4194 145.16  
5 2.6882 161.29  
5.5 2.9570 177.42  
6 3.2258 193.55  
6.5 3.4946 209.68  
7 3.7634 225.81  
7.5 4.0323 241.94  
8 4.3011 258.06  
8.5 4.5699 274.19  
9 4.8387 290.32  
9.5 5.1075 306.45  
10 5.3763 322.58  
20 10.7527 645.16  
30 16.1290 967.74  
40 21.5054 1290.32  
50 26.8817 1612.90  
60 32.2581 1935.48  
70 37.6344 2258.06  
80 43.0108 2580.65  
90 48.3871 2903.23  
100 53.7634 3225.81  

    Copyright 2003   All rights reserved.   Revised: 02/25/15.                                             Web Author, daddyo44907
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