{"id":2713,"date":"2014-06-23T10:44:29","date_gmt":"2014-06-23T09:44:29","guid":{"rendered":"https:\/\/www.ultraflux.net\/controle-du-debit-turbines-2-2\/"},"modified":"2018-06-14T16:46:08","modified_gmt":"2018-06-14T14:46:08","slug":"turbine-flow-rate-monitoring","status":"publish","type":"page","link":"https:\/\/www.ultraflux.net\/en\/applications\/hydroelectricity\/turbine-flow-rate-monitoring\/","title":{"rendered":"Turbine flow rate monitoring"},"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\/Controle-du-d\u00e9bit-de-turbines-1000x1000.jpg\" class=\"attachment-large size-large\" alt=\"\" decoding=\"async\" loading=\"lazy\" srcset=\"https:\/\/www.ultraflux.net\/wp-content\/uploads\/2014\/06\/Controle-du-d\u00e9bit-de-turbines-1000x1000.jpg 1000w, https:\/\/www.ultraflux.net\/wp-content\/uploads\/2014\/06\/Controle-du-d\u00e9bit-de-turbines-1000x1000-150x150.jpg 150w, https:\/\/www.ultraflux.net\/wp-content\/uploads\/2014\/06\/Controle-du-d\u00e9bit-de-turbines-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>\nReliable principles must be applied when measuring flow in pipes under load in hydroelectric power plants, because of the economic and safety challenges posed by penstocks.<\/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>\nThis operation relates to four penstocks, 7.4m in diameter, situated in a hydroelectric power plant in South Africa. The measurement system installed by Ultraflux uses clamp-on probes to regulate the plant&#8217;s flows and protect against the risk of flooding in the valley.<br \/>\nBefore making a commitment to providing a solution and finding the expected results, Ultraflux requested an acoustic transmission test in order to confirm the internal state of the pipe and the absence of trapped air. This type of test, which we think should be systematic, was carried out using a portable flow meter and SE 1599 probes in direct configuration.<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone wp-image-1518\" src=\"https:\/\/www.ultraflux.net\/wp-content\/uploads\/2014\/06\/D\u00e9bit-de-turbines-BEP-BESTBELL-406x315-300x232.jpg\" alt=\"D\u00e9bit de turbines BEP BESTBELL\" width=\"237\" height=\"183\" srcset=\"https:\/\/www.ultraflux.net\/wp-content\/uploads\/2014\/06\/D\u00e9bit-de-turbines-BEP-BESTBELL-406x315-300x232.jpg 300w, https:\/\/www.ultraflux.net\/wp-content\/uploads\/2014\/06\/D\u00e9bit-de-turbines-BEP-BESTBELL-406x315.jpg 406w\" sizes=\"(max-width: 237px) 100vw, 237px\" \/><\/p>\n<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 colspan=\"2\">FLOW METERS<\/td>\n<\/tr>\n<tr>\n<td>Uf 821 converter<\/td>\n<td>SE 1599 clamp-on probes<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.ultraflux.net\/applications\/hydroelectricity\/turbine-flow-rate-monitoring\/uf-821-2\/\" rel=\"attachment wp-att-7749\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-7749\" src=\"https:\/\/www.ultraflux.net\/wp-content\/uploads\/2018\/06\/uf-821-1.jpg\" alt=\"\" width=\"220\" height=\"233\" \/><\/a><\/td>\n<td>\u00a0<a href=\"https:\/\/www.ultraflux.net\/applications\/hydroelectricity\/turbine-flow-rate-monitoring\/se-1599-2-2\/\" rel=\"attachment wp-att-7746\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-7746\" src=\"https:\/\/www.ultraflux.net\/wp-content\/uploads\/2018\/06\/Se-1599.png\" alt=\"\" width=\"220\" height=\"175\" \/><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\"><a href=\"https:\/\/www.ultraflux.net\/en\/products\/flowmeters-free-surface-flows\/uf-831-corv\/\">Uf 821\u00a0<\/a><\/td>\n<td>In order to strengthen the ultrasound signals observed during the preliminary tests, we suggested twin SE 1599-I sensors, which provide an extra 16 dB. A special support was designed for attachment without straps. Only one cable is needed per set of twin probes.<br \/>\nIn order to better monitor the scope of output speeds and to obtain a backup measurement in the event of failure, we installed two direct diametric chords.<\/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>\nThe maximum flow per group is 160 m<sup>3<\/sup>\/s, i.e., depending on the TDH, a power per group of around 100 MW. On the basis of the turbine and generator qualification tests, the precision of the four flow measurements was confirmed to be +\/- 1 %.<\/p>\n<\/div><\/div><\/div>\n<div class=\"block\"><div class=\"title\">ADVANTAGES<\/div><div class=\"text\"><div class=\"text-container\"><p>\nThe advantages of our installation, in addition to its precision, are the absence of moving parts and a lack of heavy-duty work, such as drilling, which is forbidden for safety reasons.<\/p>\n<\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":3,"featured_media":0,"parent":5741,"menu_order":4,"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>Turbine flow rate monitoring | Ultraflux - Expert in flow meters<\/title>\n<meta name=\"description\" content=\"Ultraflux ultrasonic flow meters for turbine flow monitoring: discover a reliable and accurate solution for measuring flow in hydroelectric power plants.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ultraflux.net\/en\/applications\/hydroelectricity\/turbine-flow-rate-monitoring\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Turbine flow rate monitoring | Ultraflux - 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