{"id":2671,"date":"2014-06-23T10:47:10","date_gmt":"2014-06-23T09:47:10","guid":{"rendered":"https:\/\/www.ultraflux.net\/mesure-debit-conduites-forcees-2-2\/"},"modified":"2015-05-29T16:09:13","modified_gmt":"2015-05-29T15:09:13","slug":"penstock-flow-rate-measurement","status":"publish","type":"page","link":"https:\/\/www.ultraflux.net\/en\/applications\/hydroelectricity\/penstock-flow-rate-measurement\/","title":{"rendered":"Penstock flow rate measurement"},"content":{"rendered":"<ul class=\"gallery\"><li class=\"active image-1\"><p><img width=\"1000\" height=\"1000\" src=\"https:\/\/www.ultraflux.net\/wp-content\/uploads\/2014\/06\/Mesure-de-d\u00e9bit-sur-conduite-forc\u00e9e-1000x1000.jpg\" class=\"attachment-large size-large\" alt=\"\" decoding=\"async\" loading=\"lazy\" srcset=\"https:\/\/www.ultraflux.net\/wp-content\/uploads\/2014\/06\/Mesure-de-d\u00e9bit-sur-conduite-forc\u00e9e-1000x1000.jpg 1000w, https:\/\/www.ultraflux.net\/wp-content\/uploads\/2014\/06\/Mesure-de-d\u00e9bit-sur-conduite-forc\u00e9e-1000x1000-150x150.jpg 150w, https:\/\/www.ultraflux.net\/wp-content\/uploads\/2014\/06\/Mesure-de-d\u00e9bit-sur-conduite-forc\u00e9e-1000x1000-300x300.jpg 300w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/p><\/li><\/ul><nav id=\"gallery-nav\"><ul class=\"gallery-nav\"><li class=\"active image-1\"><p><\/p><\/li><\/ul><\/nav>\n<div class=\"block\"><div class=\"title\">BACKGROUND<\/div><div class=\"text\"><div class=\"text-container\"><p>\nEnergy has become a priority issue (due to the depletion of fossil fuels and the production and operation costs of nuclear energy, etc.). As a result, electricity production by hydroelectric power plants has become an interesting alternative, because it is natural and does not create pollution. There is a large and ever-growing number of plants (more than 1,500 with a small, medium or large production capacity). It is therefore vital to control and optimise the yield of these plants. This is why Ultraflux offers its clients a debit meter that is capable of responding to this objective of knowing the yield of their plants as precisely as possible.<\/p>\n<\/div><\/div><\/div>\n<div class=\"block\"><div class=\"title\">DESCRIPTION OF THE APPLICATION<\/div><div class=\"text\"><div class=\"text-container\"><p>\nUltraflux was asked to equip pipes in a hydroelectric plant situated within a mountain range. We were asked to install multi-chord ultrasound flow meters on existing pipes with large diameters (1,800 to 2,700mm). To do this, we needed to take into account hydraulic, time and access constraints in relation to the various sites to be equipped.<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-medium wp-image-1502\" src=\"https:\/\/www.ultraflux.net\/wp-content\/uploads\/2014\/06\/Conduites-forc\u00e9es-SHEM-300x224.jpg\" alt=\"Conduites forc\u00e9es SHEM\" width=\"300\" height=\"224\" srcset=\"https:\/\/www.ultraflux.net\/wp-content\/uploads\/2014\/06\/Conduites-forc\u00e9es-SHEM-300x224.jpg 300w, https:\/\/www.ultraflux.net\/wp-content\/uploads\/2014\/06\/Conduites-forc\u00e9es-SHEM.jpg 394w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<\/div><\/div><\/div>\n<div class=\"block\"><div class=\"title\">EQUIPMENT USED<\/div><div class=\"text\"><div class=\"text-container\"><\/p>\n<table>\n<tbody>\n<tr>\n<td style=\"text-align: left;\" colspan=\"2\">FLOW METERS<\/td>\n<\/tr>\n<tr>\n<td>Uf 831 CO converters<\/td>\n<td>Intrusive probes<\/td>\n<\/tr>\n<tr>\n<td><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-1479\" src=\"https:\/\/www.ultraflux.net\/wp-content\/uploads\/2014\/06\/Uf-831-220x190.jpg\" alt=\"Convertisseur Uf 831\" width=\"220\" height=\"190\" \/><\/td>\n<td>\u00a0<img decoding=\"async\" loading=\"lazy\" class=\"alignnone  wp-image-1500\" src=\"https:\/\/www.ultraflux.net\/wp-content\/uploads\/2014\/06\/Sonde-intrusive-SHEM.jpg\" alt=\"Sonde intrusive\" width=\"225\" height=\"174\" \/><\/td>\n<\/tr>\n<tr>\n<td>These devices enable us to measure between one and eight speeds, depending on the version.<\/td>\n<td>The chosen probes allow for mounting and dismantling under load and can withstand a pressure of 100 bars.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\n<\/div><\/div><\/div>\n<div class=\"block\"><div class=\"title\">RESULTS<\/div><div class=\"text\"><div class=\"text-container\"><p>\nIn order to satisfy our client&#8217;s requirements, the measurement uncertainty of the measurement points must be better than 1%.<\/p>\n<\/div><\/div><\/div>\n<div class=\"block\"><div class=\"title\">ADVANTAGES<\/div><div class=\"text\"><div class=\"text-container\"><\/p>\n<ul>\n<li>Measures speed over several sections so that the various flow speeds can be taken into account,<\/li>\n<li>Controlled and highly reliable measurement uncertainty,<\/li>\n<li>Probes can be mounted under load,<\/li>\n<li>Very dynamic measurements,<\/li>\n<li>Good repeatability.<\/li>\n<\/ul>\n<p>\n<\/div><\/div><\/div>\n<p><div class=\"block_enhanced\"><p>\n<strong>The Ultraflux solution<\/strong>:<\/p>\n<ul>\n<li><span style=\"font-size: 13px;\">Overall project management (choice of subcontractors, project supervision, etc.),<\/span><\/li>\n<li><span style=\"font-size: 13px;\">Full study capable of integrating the hydraulic profile of the flow (using a specific piece of software),<\/span><\/li>\n<li><span style=\"font-size: 13px;\">Control of the section of pipe (dimensional arm, thickness gauge),<\/span><\/li>\n<li><span style=\"font-size: 13px;\">Controlled costs (regardless of the pipe diameter and the installation of the flow meter),<\/span><\/li>\n<li><span style=\"font-size: 13px;\">Production is not shut-down to install the equipment and the pipe is not cut,<\/span><\/li>\n<li><span style=\"font-size: 13px;\">Little to no mechanical stress on the pipework.<\/span><\/li>\n<\/ul>\n<h4>\n<\/div><\/h4>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":3,"featured_media":0,"parent":5741,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Penstock flow rate measurement | Ultraflux - flow meters<\/title>\n<meta name=\"description\" content=\"Ultrasonic flow meters for penstock flow rate measurement: discover a reliable and accurate solution for full pipe measurement. 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