# Air Flow Liter Meter

8,462

6

2

This is what I use to determine how much HHO gas is being produced per minute with my Hydrogen Generator.

### Teacher Notes

Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.

## Step 1: The 2 Liter Design

The 2nd 2 liter bottles center is cut out to make the 1st bottle longer.

## Step 2: Simple 1 Liter Bottle

A 1 liter bottle with just the cap removed.

## Step 3: Base of the Unit

Simply, it is a 2 - 2 liter bottles with the bottom cut off and glued to the top of the other one to form the base of the unit. Sand is placed in the base to allow it to stand upright.

## Step 4: The Inside of the 2 Liter Bottle Showing the PEX Tube.

The air or gas flows through this into the 1 Liter bottle and you just calculate the time it takes to lift the bottle till the first bubble comes out.

Participated in the
Keep the Bottle Contest

## Recommendations

• ### 3D Printing With Circuits Class

7,084 Enrolled

## 2 Discussions

Sorry if I wasn't clear but it is a way to figure out how much HHO gas is being produced using electrolysis. The HHO gas is pumped out of my Hydrogen cell into the flow meter and as the 1 liter bottle rises I calculate the amount of time it takes to fill up one liter of gas. Hydrogen production is a hobby I am working on to provide additional fuel for my car in order to get better gas mileage. I have a wideband O2 sensor that I use with my laptop in order to decrease the amount of gas injected and then allowing my car to run on mostly Hydrogen.