Coffee Jar Siphon

GA Tornado and thanks. I take it then that the blue (water source) at the bottom of the link with the coffee jars in animation is actually moving water and not static. I had assumed that the water was static and the lift or siphon was working only by the air pressure changes in the jars as indicated.

I was under the impression that it would operate with falling water similar to Ram pumps with moving parts. Gary

For water to be moving, it does have to fall, but this can consist a of a small volume of water falling a large height, or a large volume of water running almost horizontally.

Thanks for the confirmation of concept. I like the idea of raising water and releasing it for the purpose of power generation (Water batteries, if you will). If the raising meets or exceeds the generation requirements (without large capital or energy costs), One could realize a profit. Gary

Somewhere in my collection, I have some information that uses check valves to accomplish the same thing. I will dig through my CD's and see if I can't find it.

GA great Brian. It is nice to know you are a CR4er. I have attached your new pulser pump here from appropedia. Widden's paper is one of those give me money and you can read it deals.

To attach a link just highlight the word or words you would like to focus on and the hyperlink icon (4th from left at top of message block) will come on in the tool bar. Right click the hyperlink icon and insert your web page, then click submit.

My question remains as to how many stages can be added, albeit low lifts at each stage. Can we get greater than 9.8 meters by using multiple lifts?

Definitely you can go more than 9.8 meters in multiple lifts. I did 7 stages to get to 6 ft high (with a gazillion tubes and 14 coffee jars. But, 70 glass coffee jars later, is it worth the effort to go to 9.8 m?

I was attending hexane distillation for glc (one of the most boring jobs ever) and watching bubbles in the narrow gauge tubing in a condenser that was water cooled when I got the "flash of light" for the coffee jar pump. I saw the whole thing as similar to the krebs cycle in biology in that moment. (I never saw the similarity again but hey, it did lead to something and it is still a curiosity for people today)

If you could figure out plug flow and slug flow with a vacuum, you would only need 1 or 2 or 3 stages to get to 9.8 meters with suction. How high will your wet vac suck? And how efficient to that height? You got to let some air in to mimic plug flow.

If anyone wants to join the yahoo pulser pump group, you can read that Widden paper for free.(It was free when i put it in the files section several years ago.) They were using weirs and the partial vacuum to drive big fans or air turbines and generating electricity from it. The big advantage over the pulser pump is that no hole needs to be dug. I worried at the time. Would fish or aquatic insects get the air and life sucked out of their bodies as they went through partial vacuum?

That was another big reason why I abandoned it.

Brian