![]() So of course, I built my own so you can see how it works, but first we need to build a just a little bit of foundational knowledge on the behavior of fluids. Because if you’ve got a piece of land with an abundant source of water, a ram pump lets you get that water to a tank or location at a higher elevation with a really elegant design that requires no electricity or fuel and only two moving parts. And, it’s easy to see why ram pumps have such popularity among these groups. No, it’s not a free energy device, but if you search around, you’ll find lots great implementations of this style of pump on YouTube, mainly from people doing homesteading and off-grid lifestyle vlogs. On today’s episode we’re talking about hydraulic ram pumps.Ī hydraulic ram is a clever device invented over 200 years ago that can pump water uphill with no other external source of power except for the water flowing into it. Hey I’m Grady and this is Practical Engineering. Because even though water hammer is generally a problem for engineers, there is a way to take advantage of this normally inauspicious effect for a beneficial use. But even after those posts, it turns out I haven’t told the full story. And then, I did a follow-up to the water hammer talking about transient vacuum phenomena that can collapse pipes if they’re not designed and operated correctly. ![]() ![]() Then I wrote about steam hammer, a somewhat related phenomenon associated with steam piping systems that can be extremely dangerous. A while back I wrote about water hammer, a hydraulic phenomenon that can lead to major problems in pipelines.
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