{"id":1517,"date":"2021-01-01T14:30:00","date_gmt":"2021-01-01T15:30:00","guid":{"rendered":"https:\/\/www.vibration-pulsation-consulting.com\/?p=1517"},"modified":"2021-09-21T12:41:28","modified_gmt":"2021-09-21T13:41:28","slug":"acoustic-malfunctions-in-eva-and-ldpe-plants","status":"publish","type":"post","link":"https:\/\/www.vibration-pulsation-consulting.com\/en\/troubleshooting\/acoustic-malfunctions-in-eva-and-ldpe-plants\/","title":{"rendered":"Acoustic Malfunctions in LDPE\/EVA plants"},"content":{"rendered":"\n<p>During the engineering phase of a state-of-the-art LDPE\/EVA plant huge efforts are made to maintain the pulsation level within the plant in an acceptable magnitude.<\/p>\n\n\n\n<p><em>Taking all the engineering efforts within the Study of Vibration and the Study of Pulsation in account these deviations might be called an acoustic malfunction.<\/em><\/p>\n\n\n\n<p>An acoustic malfunction can result in fatigue failures of components, in poor compressor performance and am elevated energy consumption.<\/p>\n\n\n\n<p>Several things can lead to a deviation from the as-designed to the as-operated pulsation conditions. The following is an example, but by no means a complete list of possible causes.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Engineering and Construction<\/strong><ul><li>pulsation study based on preliminary process conditions<\/li><\/ul><ul><li>undersized pulsation dampeners <\/li><\/ul><ul><li>deviation in as-planned and as-build<\/li><\/ul><\/li><li><strong>Modification and Revamping<\/strong><ul><li>change to the acoustic length of the system (preheater implementation, &#8230;)<\/li><li>adjustment of side stream by means of orifices<\/li><li>implementation of compressor capacity controls for e. g. stepless flow control<\/li><\/ul><\/li><li><strong>Operation<\/strong><ul><li>operation outside of the specified process conditions of the pulsation study<\/li><\/ul><\/li><li><strong>Maintenance<\/strong><ul><li>change of acoustic properties of the system for e. g. due to fouling<\/li><li>compressor valve failures<\/li><li>missing orifices or wrong installation<\/li><\/ul><\/li><\/ul>\n\n\n\n<p>By means of combined metrological and numerical investigation the root causes for elevated pulsations and vibrations can be revealed. Several powerful, non-invasive measurement techniques are available to obtain a comprehensive insight in the operational pulsation and vibration situation. Together with tailored numerical simulations an efficient mitigation plan can be developed.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>14th LDPE Plant Improvement Conference 2018 in Gda\u0144sk, Poland: [&#8230;] An acoustic malfunction can result in fatigue failures of components, n poor compressor performance and am elevated energy consumption.<\/p>\n","protected":false},"author":1,"featured_media":1962,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[25,24,23],"tags":[],"class_list":["post-1517","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-assessment","category-optimization","category-troubleshooting"],"_links":{"self":[{"href":"https:\/\/www.vibration-pulsation-consulting.com\/en\/wp-json\/wp\/v2\/posts\/1517","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vibration-pulsation-consulting.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vibration-pulsation-consulting.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vibration-pulsation-consulting.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vibration-pulsation-consulting.com\/en\/wp-json\/wp\/v2\/comments?post=1517"}],"version-history":[{"count":17,"href":"https:\/\/www.vibration-pulsation-consulting.com\/en\/wp-json\/wp\/v2\/posts\/1517\/revisions"}],"predecessor-version":[{"id":2125,"href":"https:\/\/www.vibration-pulsation-consulting.com\/en\/wp-json\/wp\/v2\/posts\/1517\/revisions\/2125"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.vibration-pulsation-consulting.com\/en\/wp-json\/wp\/v2\/media\/1962"}],"wp:attachment":[{"href":"https:\/\/www.vibration-pulsation-consulting.com\/en\/wp-json\/wp\/v2\/media?parent=1517"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vibration-pulsation-consulting.com\/en\/wp-json\/wp\/v2\/categories?post=1517"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vibration-pulsation-consulting.com\/en\/wp-json\/wp\/v2\/tags?post=1517"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}