{"id":3960,"date":"2019-09-09T04:45:00","date_gmt":"2019-09-09T04:45:00","guid":{"rendered":"http:\/\/paleo-energetique.org\/?post_type=paleoinventions&#038;p=3960"},"modified":"2019-09-09T04:45:00","modified_gmt":"2019-09-09T04:45:00","slug":"the-hydraulic-ram","status":"publish","type":"paleoinventions","link":"https:\/\/paleo-energetique.org\/en\/paleoinventions\/the-hydraulic-ram\/","title":{"rendered":"The hydraulic ram"},"content":{"rendered":"<p>A hydraulic ram or hydram uses the energy of a waterfall to pump water higher than the height of the waterfall, with a very simple hydraulic and mechanical feature. It was invented by Joseph-Michel Montgolfier, known for building the first air-balloon in 1782 with his brother Jacques-Etienne. In 1772, Joseph Montgolfier came up with the idea to apply the water hammer effect to a simple mechanism to pump up water for the family paper mill in Vidalon (France). The water hammer effect can be observed when a tap is suddenly turned off : due to water&#8217;s inert force, the canalization is subject to a shock resulting in a noise. The hydraulic ram takes in water at one &#8220;hydraulic head&#8221; (pressure) and flow rate, and outputs water at a higher hydraulic head and lower flow rate. The water hammer effect is used to build up pressure allowing a portion of the water that powers the pump to be lifted to a point that is higher than where the water originally started. The hydraulic ram is sometimes used in remote areas, where there is both a source of low-head hydropower and a need for pumping water to a destination located higher than the source. In this situation, the ram very useful, since no outside source of power is required other than the kinetic energy of flowing water.<\/p>\n<p>&nbsp;<\/p>\n<p>See also :<\/p>\n<p>http:\/\/walton.fr\/ram\/hydraulic-RAM\/French\/le-belier.html<\/p>\n<p>http:\/\/chateauduloir.over-blog.com\/article-231430.html<\/p>\n<p>http:\/\/www.belier-inox.fr\/fabriquez-votre-belier-p867652<\/p>\n","protected":false},"featured_media":3131,"template":"","format":"standard","class_list":["post-3960","paleoinventions","type-paleoinventions","status-publish","format-standard","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>The hydraulic ram - Pal\u00e9o-Energ\u00e9tique<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/paleo-energetique.org\/en\/paleoinventions\/the-hydraulic-ram\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The hydraulic ram - Pal\u00e9o-Energ\u00e9tique\" \/>\n<meta property=\"og:description\" content=\"A hydraulic ram or hydram uses the energy of a waterfall to pump water higher than the height of the waterfall, with a very simple hydraulic and mechanical feature. 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