Pulser pump New video 2011

The pulser pump combines a low pressure tromp (discovered in Italy in the 16th or 17th century with a low pressure airlift pump. This combination has no moving parts and can be used to get power from little streams or rivers. The type of airlift that the pump uses is called plug flow or slug flow. This is NOT the same as in typical airlift pumps. The pump isn't just for pumping water. Other uses are possible too. The pump could be very useful in certain situations (it is just pipes joined together) where the cost of typical hydroelectric power machinery is impossible to justify. It can also be a new "first step" on the ladder of development.

Category:

Nonprofits & Activism

Tags:

• airlift
• tromp
• development
• science
• appropriate technology

[virlusun]

Thanks for the update, also make it on NANO scales versions.

[gaiatechnician]

@virlusun Thanks, I think you are right. I have been looking at windowfarms and the very low pressure that you use successfully). Perhaps you could do the pulser pump with one pipe providing air at 4 ft deep. (4 ft water pressure) and then have this air feeding into perhaps 10 or 20 1/4 inch pipes bundled together. Several things stop people making pulser pumps. One is having to dig a really deep hole.

And another is that no big agency has done tests. This might eliminate both problems!

[gaiatechnician]

@virlusun I made a new video and I think it shows that your NANO scale idea is a good one. I no longer live near a river so I used the windowfarm pumping method (an aquarium air pump) with 22 inches of submergence to pump to 13 ft high. This suggests that a pulser pum NANO only needs the trompe section to be 2 or 3 ft deep.

[gaiatechnician]

@CrispinPigott Hi, Crispin, I was moving so I missed most of your replies. Nobody took this thing up even though it is free and pretty easy to make. (I thought a development agency, or rich caring pop star would do it and release figures about how well or badly it works). I don't live by a stream anymore so I do airlift for windowfarms now (showing people better ways to do it). Check out the pulser pump nano and "world record" nano airlift videos. Food for thought! Brian

[CrispinPigott]

Then use the air for a well designed (very simple) bubble pump. The net result is more water to a greater height.

I am impressed with the working pump you have now because it is very accessible - just not known. Perhaps someone can sell something like a kit. When people pay a little, they pay more attention.

Thanks for inspiration - it is a useful device

Crispin from newdawnengineering

[CrispinPigott]

Air will be drawn into the expanding space between the cones as the water falls down through the tiny holes in the top cone. That makes tiny bubbles. They have only a small tendency to rise in the descending column. This was optimised in the 1930's for air tram companies in Paris and Chicago.

The small bubble size may make it necessary to give the water more residence time in the air chamber. The efficiency of the system rises with this method.

[CrispinPigott]

The size of the bubble travelling down can be made much smaller to great advantage by creating two cones with slightly different tapers, Put one above the other, with the steeper cone on the bottom. Make lots of small holes in the upper one. Make it adjustable up and down on a screw.

Run the water into the gap between cones such that it fills up all the time. By adjusting the top cone up or down that can be maintained.

[CrispinPigott]

From the videos it looks as if the bubble pump would be more efficient (very small air bubbles instead of a slug of water then air) unless the pipe is really small. The 'energy' of the water throwing into the air is not 'free' in any sense - if it was a bubble pump the total work done would be the same.

For that reason some people might want to try a bubble pump driven by the same trompe supply that you show. Yes, I understand the difference.

[CrispinPigott]

I have been making ram pumps and given thought to bubble pump as an alternative for places with a lot of head, to be used by running a pipe along the river and back again. The obviates the need to dig a hole.

This is indeed a variation on a bubble pump but with slugs so the max height will be related to the air/water ratio in the pipe. The small pipe diameter of the NANO idea is just the ticket for the higher lifts. Then you are playing with the meniscus effect to your advantage.

[thedataflo]

im gonna build a test project in my garden got a veeeeeery deep hole there where i can climb down to the groundwater im gonna try to build a simple 1 cylinder engine airpump whit a wind wheel to pump air down and hopfully some water will come upp i keep you updated XD