{"id":2651,"date":"2021-12-17T11:35:49","date_gmt":"2021-12-17T10:35:49","guid":{"rendered":"https:\/\/unicompex.com\/?p=2651"},"modified":"2024-11-11T20:36:30","modified_gmt":"2024-11-11T19:36:30","slug":"technical-reminder-on-the-silencer-of-a-generating-set","status":"publish","type":"post","link":"https:\/\/unicompex.com\/en\/2021\/12\/17\/technical-reminder-on-the-silencer-of-a-generating-set\/","title":{"rendered":"Technical reminder on the silencer of a generating set"},"content":{"rendered":"<h3 class=\"wp-block-heading\">When you buy a generator, ask about the specifications of its silencer and the noise level of the generator, as well as the emissions of polluting gases it produces.<\/h3>\n\n\n\n<h3 class=\"wp-block-heading\">With FG Wilson, this is clear:<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">All Level 1, Level 2 and Level 3 enclosures reduce noise levels to comply with Stage II of EU Directive 2000\/14\/EC, in force from 3 January 2006. Source : <a rel=\"noreferrer noopener\" href=\"https:\/\/s7d2.scene7.com\/is\/content\/Caterpillar\/CM20151130-19199-50977\" data-type=\"URL\" data-id=\"https:\/\/s7d2.scene7.com\/is\/content\/Caterpillar\/CM20151130-19199-50977\" target=\"_blank\">FG Wilson<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">As an option, you can choose : <\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Industrial silencer (10 dBA reduction)<\/li><li>Residential silencer (25 dBA reduction)<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">For single-phase generating sets from 7.5 to 16.5 kVA, here are the noise levels measured.<strong> These tables are available for all FG Wilson power ratings.<\/strong><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img data-recalc-dims=\"1\" height=\"629\" width=\"1024\" decoding=\"async\" data-attachment-id=\"2656\" data-permalink=\"https:\/\/unicompex.com\/en\/2021\/12\/17\/technical-reminder-on-the-silencer-of-a-generating-set\/image-86\/\" data-orig-file=\"https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2021\/12\/image.png?fit=2284%2C1402&amp;ssl=1\" data-orig-size=\"2284,1402\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"image\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2021\/12\/image.png?fit=1024%2C629&amp;ssl=1\" data-src=\"https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2021\/12\/image.png?resize=1024%2C629&#038;ssl=1\" alt=\"\" class=\"wp-image-2656 lazyload\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/629;\" \/><figcaption>Levels in compliance with the European Noise Directive (2000\/14\/EC).<\/figcaption><\/figure><\/div>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-4-3 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe class=\"youtube-player lazyload\" width=\"640\" height=\"360\" data-src=\"https:\/\/www.youtube.com\/embed\/dGuJjaC8HQo?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=en-GB&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" data-load-mode=\"1\"><\/iframe><\/span>\n<\/div><figcaption>Video of the manufacture of FG Wilson generating set enclosures.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Acoustic tests are carried out at the factory in a hemi-anechoic room (see video below).<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe class=\"youtube-player lazyload\" width=\"640\" height=\"360\" data-src=\"https:\/\/www.youtube.com\/embed\/fAmpvyoxysA?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=en-GB&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" data-load-mode=\"1\"><\/iframe><\/span>\n<\/div><figcaption>Acoustic validation tests on FG Wilson generating sets.<\/figcaption><\/figure>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img data-recalc-dims=\"1\" height=\"568\" width=\"1024\" decoding=\"async\" data-attachment-id=\"2663\" data-permalink=\"https:\/\/unicompex.com\/en\/2021\/12\/17\/technical-reminder-on-the-silencer-of-a-generating-set\/image-3-11\/\" data-orig-file=\"https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2021\/12\/image-3.png?fit=2120%2C1176&amp;ssl=1\" data-orig-size=\"2120,1176\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"image-3\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2021\/12\/image-3.png?fit=1024%2C568&amp;ssl=1\" data-src=\"https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2021\/12\/image-3.png?resize=1024%2C568&#038;ssl=1\" alt=\"\" class=\"wp-image-2663 lazyload\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/568;\" \/><figcaption>Acoustic test of an FG Wilson generator set in the hemi anechoic chamber at Caterpillar NI (FG Wilson) in Northern Ireland (Larne).<\/figcaption><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Emissions tests are carried out by the engine supplier, Perkins.<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\"Our 400 Series is a proven family of motors designed to offer optimised performance and robust technology for the smaller, compact motor sector. Our industrial motors in the series are a global engine, manufactured on three continents. They are designed to meet global emissions standards, from non-regulated to European Stage IIIB \/ U.S. EPA Tier 4 Final. The electric motors in the series meet both regulated and non-regulated emission standards globally.\" Source : <a rel=\"noreferrer noopener\" href=\"https:\/\/www.perkins.com\/en_GB\/products\/product-range\/400-series.html\" data-type=\"URL\" data-id=\"https:\/\/www.perkins.com\/en_GB\/products\/product-range\/400-series.html\" target=\"_blank\">Perkins<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><em>In the world of generators, a silencer performs the same function for combustion engines as a muffler does for engines in automotive and construction applications. Both reduce noise and exhaust emissions produced during combustion. <\/em>Source : <a rel=\"noreferrer noopener\" href=\"https:\/\/www.generatorsource.com\/Generator-Silencers.aspx\" target=\"_blank\">https:\/\/www.generatorsource.com\/Generator-Silencers.aspx<\/a><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">There are three basic silencer designs:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><em>Reactive muffler - The internal construction comprises up to three chambers connected by a tube. Exhaust noise bounces between the chambers, reducing output noise. Used to reduce noise from low to medium frequencies.<\/em><\/li><li><em>Absorbent silencer - The internal construction consists of fibreglass or glass insulation. Exhaust noise is attenuated as it passes through the insulation. This method is used to reduce high-frequency sound waves.<\/em><\/li><li><em>Combination silencer - As suggested, combines the construction of reactive and absorptive silencers. The absorption material is integrated into the chamber design of the reactive silencer. This allows the reduction of all frequency designs.<\/em><\/li><\/ul>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img data-recalc-dims=\"1\" decoding=\"async\" data-src=\"https:\/\/i0.wp.com\/d3i71xaburhd42.cloudfront.net\/6c1093345e97c7ad5f6cf089a25f26b431bce0d8\/2-Figure3-1.png?ssl=1\" alt=\"Design and Fabrication of Muffler for Four Stroke Diesel Engine | Semantic Scholar\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" \/><figcaption><strong>Reactive silencer<\/strong>. <em>The internal construction comprises up to three chambers connected by a tube. Exhaust noise bounces between the chambers, reducing output noise. Used to reduce noise from low to medium frequencies.<\/em> Source : <a rel=\"noreferrer noopener\" href=\"https:\/\/www.semanticscholar.org\/paper\/Design-and-Fabrication-of-Muffler-for-Four-Stroke-Balamurugan-Jeyaprakash\/bdd902a1d5d3f5d016e96beed156f65d88139b6e\" data-type=\"URL\" data-id=\"https:\/\/www.semanticscholar.org\/paper\/Design-and-Fabrication-of-Muffler-for-Four-Stroke-Balamurugan-Jeyaprakash\/bdd902a1d5d3f5d016e96beed156f65d88139b6e\" target=\"_blank\">Semantics Scholar<\/a><\/figcaption><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img data-recalc-dims=\"1\" height=\"1024\" width=\"738\" decoding=\"async\" data-attachment-id=\"2672\" data-permalink=\"https:\/\/unicompex.com\/en\/2021\/12\/17\/technical-reminder-on-the-silencer-of-a-generating-set\/93bae8c9-cc5a-4c77-a2fb-16c1d65a6795_1_105_c\/\" data-orig-file=\"https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2021\/12\/93BAE8C9-CC5A-4C77-A2FB-16C1D65A6795_1_105_c.jpeg?fit=752%2C1044&amp;ssl=1\" data-orig-size=\"752,1044\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;1.6&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;iPhone 12 Pro&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1639669553&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;4.2&quot;,&quot;iso&quot;:&quot;64&quot;,&quot;shutter_speed&quot;:&quot;0.02&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"93BAE8C9-CC5A-4C77-A2FB-16C1D65A6795_1_105_c\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2021\/12\/93BAE8C9-CC5A-4C77-A2FB-16C1D65A6795_1_105_c.jpeg?fit=738%2C1024&amp;ssl=1\" data-src=\"https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2021\/12\/93BAE8C9-CC5A-4C77-A2FB-16C1D65A6795_1_105_c.jpeg?resize=738%2C1024&#038;ssl=1\" alt=\"\" class=\"wp-image-2672 lazyload\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 738px; --smush-placeholder-aspect-ratio: 738\/1024;\" \/><figcaption><strong>Combined silencer<\/strong>. <em>The construction of reactive and absorptive silencers. The absorption material is integrated into the design of the reactive silencer chamber. This allows all frequency designs to be reduced.<\/em> Source: Unicompex.<\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><em>The different qualities of silencers on the market are :<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Industrial quality - Exhaust noise reduced by 15 to 20 dBA<br \/>Residential quality - Exhaust noise reduction 20 to 25 dBA<br \/>Critical grade - Exhaust noise reduced by 25 to 32 dBA<br \/>Super Critical Grade - Exhaust noise reduction from 30 to 38 dBA<br \/>Hospital quality - Exhaust noise reduced by 35 to 42 dBA<br \/>Hospital Plus Grade - Exhaust noise reduced by 35 to 50 dBA<br \/>Extreme Grade - Exhaust noise reduced by 40 to 55 dBA<br \/>Super Extreme Grade - Exhaust noise reduced by 45 to 60 dBA<\/em><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><em>Cylindrical silencers<\/em><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Cylindrical silencers were among the first forms developed. They can be built in three basic designs and used for both indoor and outdoor applications. The silencer can be mounted horizontally or vertically to meet all application requirements. It is considered to be one of the most economical silencers available.<\/em><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><em>Low profile silencer<\/em><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><em>These silencers come in a variety of shapes, including rectangular, oval and round. The shape chosen is determined by the space available. They are commonly used in generators located in soundproof enclosures. Silencers must comply with National Fire Protection Association (NFPA) guidelines.<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>When a generator operates in a combustible environment, modifications must be made to the exhaust system to ensure that sparks generated during the combustion process are not emitted into the outside atmosphere. Spark arresting silencers are generally cylindrical in shape and have a modified reactor design. This allows carbon sparks to circulate through the silencer by falling into a collection box. The collection box should be cleaned as part of the maintenance programme.<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Exhaust gases can reach temperatures of up to 1400 degrees Fahrenheit. These gases are often released into the atmosphere. Heat recovery silencers are used to utilise the heat in the exhaust gases before they are released into the atmosphere. This heat supply can be used for any system requiring an external heat supply (heated water). <\/em><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><em>Emission control silencer<\/em><\/h3>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" data-src=\"https:\/\/www.generatorsource.com\/getattachment\/Articles\/Generator-Info\/Generator-Silencers\/Catalytic-Converter.jpg.aspx\" alt=\"Catalytic Converter\" title=\"Catalytic Converter\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" \/><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Combustion gases are made up of many different gases. Some gases are extremely harmful, others less so. The Environmental Protection Agency (EPA) applies exhaust gas regulations to reduce harmful exhaust gas emissions.<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>The EPA tightly regulates emissions from generators that supply a facility with primary electricity. Current Tier IV regulations require the use of a catalytic converter. The basic converter consists of a honeycomb grid design that is placed in the exhaust system directly after the exhaust manifold. This location allows the exhaust gases to be at the maximum temperature necessary for proper operation. Many new silencers combine the converter design with the silencer.<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>The particulate content of exhaust gases is also addressed in Tier IV regulations. Particulate filters can be used to reduce the soot content of exhaust gases. The inside of the filter is made of ceramic. The exhaust gases pass over the material and the soot is collected. Lean burn engines can also use an additive to further reduce harmful emissions.<\/em><\/p>\n\n\n\n<p class=\"has-text-align-right wp-block-paragraph\">Source : <a href=\"https:\/\/www.generatorsource.com\/Generator-Silencers.aspx\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.generatorsource.com\/Generator-Silencers.aspx <\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">In the DRC, for the time being, in 2021, there are no emission standards for generating sets. Most imported sets therefore emit as many particles as possible (they are \"fuel optimised\"), unless requested by the customer.<\/h2>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>To find out more or get a quote for an FG Wilson generator set, contact us.<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img data-recalc-dims=\"1\" fetchpriority=\"high\" decoding=\"async\" width=\"1364\" height=\"1296\" data-attachment-id=\"57\" data-permalink=\"https:\/\/unicompex.com\/en\/logo-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2020\/10\/logo-1.png?fit=1364%2C1296&amp;ssl=1\" data-orig-size=\"1364,1296\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"logo\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2020\/10\/logo-1.png?fit=1024%2C973&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2020\/10\/logo-1.png?resize=1364%2C1296&#038;ssl=1\" alt=\"\" class=\"wp-image-57\" style=\"width:59px;height:56px\"\/><\/figure>\n\n\n\n<p class=\"has-text-align-center has-medium-font-size wp-block-paragraph\"><strong>Unicompex Congo<\/strong> <\/p>\n\n\n\n<p class=\"has-text-align-center has-normal-font-size wp-block-paragraph\"><strong><em>Emergency power since 1997<\/em><\/strong><\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><a data-type=\"URL\" data-id=\"www.unicompex.com\" href=\"https:\/\/unicompex.com\/en\/\">www.unicompex.com<\/a><\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">By email : <a href=\"mailto:contact@unicompex.net\">contact@unicompex.net<\/a> or by telephone: +243 81 99 35 000<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">Address: 1458 Avenue Colonel Lukusa, Gombe, Kinshasa, Democratic Republic of Congo<\/p>\n\n\n\n<div class=\"wp-block-jetpack-send-a-message\">\n<div class=\"wp-block-jetpack-whatsapp-button aligncenter is-color-dark\"><a class=\"whatsapp-block__button\" href=\"https:\/\/api.whatsapp.com\/send?phone=243819935000&amp;text=Hi%2C%20I%20got%20your%20WhatsApp%20information%20from%20your%20website.\" style=\"background-color:#25D366;color:#fff\" target=\"_self\" rel=\"noopener noreferrer\">Chat on WhatsApp<\/a><\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Lorsque vous achetez un groupe \u00e9lectrog\u00e8ne, demandez les sp\u00e9cifications de son silencieux et le niveau sonore du groupe \u00e9lectrog\u00e8ne ainsi que les emissions de gaz polluants qu&rsquo;il d\u00e9gage. Avec FG Wilson, ceci est clair : Tous les bo\u00eetiers de niveau 1, de niveau 2 et de niveau 3 r\u00e9duisent les niveaux sonores pour se conformer aux niveaux de la phase II de la directive communautaire 2000\/14\/CE, en vigueur \u00e0 partir du 3 janvier 2006. Source : FG Wilson En option vous avez le choix : Silencieux industriel (r\u00e9duction de 10 dBA) Silencieux r\u00e9sidentiel (r\u00e9duction de 25 dBA) Pour les groupes de 7,5 \u00e0 16,5 kVA, monophas\u00e9s, voici les niveaux acoustiques mesur\u00e9s. Ces tableaux sont disponibles pour toutes les puissances de FG Wilson. Des tests acoustiques sont faits en usine dans une salle hemi-an\u00e9cho\u00efque (voir vid\u00e9o ci-dessous). Des tests d&#8217;emissions de gaz polluants sont effectu\u00e9s par le fournisseur de moteurs thermique, Perkins. \u00ab\u00a0Notre s\u00e9rie 400 est une famille prouv\u00e9e de moteurs con\u00e7us pour offrir des performances optimis\u00e9es et une technologie robuste pour le secteur des moteurs plus petits et compacts. Nos moteurs industriels de la s\u00e9rie sont un moteur mondial, fabriqu\u00e9 sur trois continents. Ils sont con\u00e7us pour r\u00e9pondre aux normes d&rsquo;\u00e9missions mondiales, des normes non r\u00e9glement\u00e9es aux normes europ\u00e9ennes Stage IIIB \/ U.S. EPA Tier 4 Final. Les moteurs \u00e9lectriques de la s\u00e9rie respectent les normes d&rsquo;\u00e9mission r\u00e9glement\u00e9es et non r\u00e9glement\u00e9es \u00e0 l&rsquo;\u00e9chelle mondiale.\u00a0\u00bb Source : Perkins Dans le monde des g\u00e9n\u00e9rateurs, un silencieux remplit la m\u00eame fonction pour les moteurs \u00e0 combustion que le silencieux pour les moteurs des applications automobiles et de construction. Les deux r\u00e9duisent le bruit et les \u00e9missions d&rsquo;\u00e9chappement produites lors de la combustion. Source : <a href=\"https:\/\/www.generatorsource.com\/Generator-Silencers.aspx\" rel=\"nofollow\">https:\/\/www.generatorsource.com\/Generator-Silencers.aspx<\/a> Il existe trois conceptions de base de silencieux : Silencieux r\u00e9actif &#8211; La construction interne comprend jusqu&rsquo;\u00e0 trois chambres reli\u00e9es par un tube. Le bruit d&rsquo;\u00e9chappement rebondit entre les chambres, r\u00e9duisant le bruit de sortie. Utilis\u00e9 pour la r\u00e9duction du bruit des basses \u00e0 moyennes fr\u00e9quences. Silencieux absorbant &#8211; La construction interne consiste en une isolation en fibre de verre ou en verre. Le bruit d&rsquo;\u00e9chappement est att\u00e9nu\u00e9 lorsqu&rsquo;il traverse l&rsquo;isolant. Cette m\u00e9thode est utilis\u00e9e pour r\u00e9duire les ondes sonores \u00e0 haute fr\u00e9quence. Silencieux combin\u00e9 &#8211; Comme sugg\u00e9r\u00e9, combine la construction des silencieux r\u00e9actifs et absorbants. Le mat\u00e9riau d&rsquo;absorption est int\u00e9gr\u00e9 dans la conception de la chambre du silencieux r\u00e9actif. Cela permet la r\u00e9duction de toutes les conceptions de fr\u00e9quence. Les diff\u00e9rentes qualit\u00e9s de silencieux dans le march\u00e9 sont : Qualit\u00e9 industrielle &#8211; R\u00e9duction du bruit d&rsquo;\u00e9chappement de 15 \u00e0 20 dBAQualit\u00e9 r\u00e9sidentielle &#8211; R\u00e9duction du bruit d&rsquo;\u00e9chappement 20 \u00e0 25 dBAGrade critique &#8211; R\u00e9duction du bruit d&rsquo;\u00e9chappement de 25 \u00e0 32 dBASuper Critical Grade &#8211; R\u00e9duction du bruit d&rsquo;\u00e9chappement de 30 \u00e0 38 dBAQualit\u00e9 hospitali\u00e8re &#8211; R\u00e9duction du bruit d&rsquo;\u00e9chappement de 35 \u00e0 42 dBAHospital Plus Grade &#8211; R\u00e9duction du bruit d&rsquo;\u00e9chappement de 35 \u00e0 50 dBAExtreme Grade &#8211; R\u00e9duction du bruit d&rsquo;\u00e9chappement de 40 \u00e0 55 dBASuper Extreme Grade &#8211; R\u00e9duction du bruit d&rsquo;\u00e9chappement de 45 \u00e0 60 dBA Silencieux cylindriques Les silencieux cylindriques ont \u00e9t\u00e9 parmi les premi\u00e8res formes d\u00e9velopp\u00e9es. Ils peuvent \u00eatre construits selon les trois conceptions de base et utilis\u00e9s \u00e0 la fois sur des applications int\u00e9rieures et ext\u00e9rieures. Le silencieux peut \u00eatre mont\u00e9 horizontalement ou verticalement pour satisfaire toutes les exigences d&rsquo;application. Il est consid\u00e9r\u00e9 comme l&rsquo;un des silencieux les plus \u00e9conomiques. Silencieux \u00e0 profil bas Ces silencieux peuvent se pr\u00e9senter sous diff\u00e9rentes formes telles que rectangulaires, ovales et rondes. La forme choisie est d\u00e9termin\u00e9e par l&rsquo;espace disponible. Ils sont couramment utilis\u00e9s dans les g\u00e9n\u00e9rateurs situ\u00e9s dans des enceintes insonoris\u00e9es. Les silencieux doivent \u00eatre conformes aux directives de la National Fire Protection Association (NFPA). Lorsqu&rsquo;un g\u00e9n\u00e9rateur fonctionne dans un environnement combustible, des modifications doivent \u00eatre apport\u00e9es au syst\u00e8me d&rsquo;\u00e9chappement pour s&rsquo;assurer que les \u00e9tincelles g\u00e9n\u00e9r\u00e9es lors du processus de combustion ne sont pas \u00e9mises dans l&rsquo;atmosph\u00e8re ext\u00e9rieure. Les silencieux pare-\u00e9tincelles sont g\u00e9n\u00e9ralement de forme cylindrique et d&rsquo;une conception de r\u00e9acteur modifi\u00e9e. Cela permet aux \u00e9tincelles de carbone de circuler dans le silencieux en tombant dans une bo\u00eete de collecte. La bo\u00eete de collecte doit \u00eatre nettoy\u00e9e dans le cadre du programme d&rsquo;entretien. Les gaz d&rsquo;\u00e9chappement peuvent atteindre des temp\u00e9ratures allant jusqu&rsquo;\u00e0 1400 degr\u00e9s Fahrenheit. Ces gaz sont souvent rejet\u00e9s dans l&rsquo;atmosph\u00e8re. Les silencieux \u00e0 r\u00e9cup\u00e9ration de chaleur sont utilis\u00e9s pour utiliser la chaleur des gaz d&rsquo;\u00e9chappement avant qu&rsquo;elle ne soit rejet\u00e9e dans l&rsquo;atmosph\u00e8re. Cette alimentation en chaleur peut \u00eatre utilis\u00e9e pour tout syst\u00e8me n\u00e9cessitant une alimentation en chaleur externe (eau chauff\u00e9e). Silencieux de contr\u00f4le des \u00e9missions Les gaz de combustion sont compos\u00e9s de nombreux gaz. Certains gaz sont extr\u00eamement nocifs et d&rsquo;autres moins nocifs. L&rsquo;Environmental Protection Agency (EPA) applique les r\u00e9glementations sur les gaz d&rsquo;\u00e9chappement pour r\u00e9duire les \u00e9missions de gaz d&rsquo;\u00e9chappement nocifs. L&rsquo;EPA r\u00e9glemente \u00e9troitement les \u00e9missions des g\u00e9n\u00e9rateurs qui alimentent une installation en \u00e9lectricit\u00e9 principale. Les r\u00e9glementations Tier IV actuelles exigent l&rsquo;utilisation d&rsquo;un convertisseur catalytique. Le convertisseur de base est constitu\u00e9 d&rsquo;une conception de grille en nid d&rsquo;abeille qui est plac\u00e9e dans le syst\u00e8me d&rsquo;\u00e9chappement directement apr\u00e8s le collecteur d&rsquo;\u00e9chappement. Cet emplacement permet aux gaz d&rsquo;\u00e9chappement d&rsquo;\u00eatre \u00e0 la temp\u00e9rature maximale n\u00e9cessaire \u00e0 un bon fonctionnement. De nombreux nouveaux silencieux combinent la conception du convertisseur avec le silencieux. La teneur en particules des gaz d&rsquo;\u00e9chappement est \u00e9galement trait\u00e9e dans les r\u00e9glementations Tier IV. Des filtres \u00e0 particules peuvent \u00eatre utilis\u00e9s pour r\u00e9duire la teneur en suie des gaz d&rsquo;\u00e9chappement. L&rsquo;int\u00e9rieur du filtre est en c\u00e9ramique. Les gaz d&rsquo;\u00e9chappement passent sur le mat\u00e9riau, la suie est collect\u00e9e. Les moteurs \u00e0 m\u00e9lange pauvre peuvent \u00e9galement utiliser un additif pour r\u00e9duire davantage les \u00e9missions nocives. Source : <a href=\"https:\/\/www.generatorsource.com\/Generator-Silencers.aspx\" rel=\"nofollow\">https:\/\/www.generatorsource.com\/Generator-Silencers.aspx<\/a> En RDC, pour l&rsquo;instant, en 2021, il n&rsquo;y a pas de normes d&#8217;emissions pour les groupes \u00e9lectrog\u00e8nes. La plupart des groupes import\u00e9s \u00e9mettent donc un maximum de particules (Ils sont \u00ab\u00a0Fuel optimised\u00a0\u00bb), sauf \u00e0 la demande du client. Pour en savoir plus ou avoir une offre de prix pour un groupe \u00e9lectrog\u00e8ne FG Wilson, contactez-nous.<\/p>","protected":false},"author":15853940,"featured_media":2661,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","_crdt_document":"","advanced_seo_description":"Lorsque vous achetez un groupe \u00e9lectrog\u00e8ne, demandez les sp\u00e9cifications des silencieux et le niveau sonore du groupe \u00e9lectrog\u00e8ne ainsi que les emissions de gas polluants qu'il d\u00e9gage.","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"_wpas_customize_per_network":false,"jetpack_post_was_ever_published":false},"categories":[707664039],"tags":[707664114,707664112,6417,707664111,707664013,31617873,28295971,707664113,707664110,707664109,707664108,706476338],"class_list":["post-2651","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-groupe-electrogene","tag-acoustique","tag-bda","tag-congo","tag-db","tag-emissions","tag-fg-wilson","tag-groupe-electrogene","tag-hemi-anechoic","tag-muffler","tag-silencer","tag-silencieux","tag-unicompex"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2021\/12\/image-1.png?fit=2122%2C1202&ssl=1","jetpack_likes_enabled":true,"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/pctZkn-GL","jetpack-related-posts":[{"id":4343,"url":"https:\/\/unicompex.com\/en\/2023\/10\/16\/generator-price\/","url_meta":{"origin":2651,"position":0},"title":"How much does a generator cost in Kinshasa?","author":"SAV Unicompex","date":"16\/10\/2023","format":false,"excerpt":"Vous voulez acheter un groupe \u00e9lectrog\u00e8ne pour votre maison ou vos bureaux ou votre usine ou pour vos immeubles? Peut-\u00eatre que vous allez construire un immeuble avec des bureaux et des r\u00e9sidences? Ou bien vous voulez un tout petit groupe \u00e9lectrog\u00e8ne pour vos lumi\u00e8res. (Lisez notre guide d'achat d'un groupe\u2026","rel":"","context":"In &quot;Educatif&quot;","block_context":{"text":"Educatif","link":"https:\/\/unicompex.com\/en\/category\/educational\/"},"img":{"alt_text":"FG Wilson groupe \u00e9lectrog\u00e8ne Afrique","src":"https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2023\/10\/Africa-Shop.jpg?fit=1200%2C620&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2023\/10\/Africa-Shop.jpg?fit=1200%2C620&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2023\/10\/Africa-Shop.jpg?fit=1200%2C620&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2023\/10\/Africa-Shop.jpg?fit=1200%2C620&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2023\/10\/Africa-Shop.jpg?fit=1200%2C620&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":531,"url":"https:\/\/unicompex.com\/en\/2020\/12\/29\/starting-a-fg-wilson-p65-generator\/","url_meta":{"origin":2651,"position":1},"title":"Starting a FG Wilson P65 generator set","author":"K Emilio Noorani","date":"29\/12\/2020","format":false,"excerpt":"Starting a FG Wilson P65 generator https:\/\/youtu.be\/78nzkhhevnE","rel":"","context":"In &quot;Groupe Electrog\u00e8ne&quot;","block_context":{"text":"Groupe Electrog\u00e8ne","link":"https:\/\/unicompex.com\/en\/category\/generator-set\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2020\/12\/img_5599.jpg?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2020\/12\/img_5599.jpg?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2020\/12\/img_5599.jpg?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2020\/12\/img_5599.jpg?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2020\/12\/img_5599.jpg?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":1212,"url":"https:\/\/unicompex.com\/en\/2021\/02\/18\/datacenters\/","url_meta":{"origin":2651,"position":2},"title":"FG Wilson emergency power supply for data centres in Ukraine and the UK","author":"K Emilio Noorani","date":"18\/02\/2021","format":false,"excerpt":"FG Wilson dealer Madek supplies critical backup power to Ukraine's largest commercial data centre. Madek, an official FG Wilson dealer in Ukraine and one of 370 FG Wilson dealers worldwide, has successfully completed the delivery of a backup power solution for the largest commercial...","rel":"","context":"In &quot;Groupe Electrog\u00e8ne&quot;","block_context":{"text":"Groupe Electrog\u00e8ne","link":"https:\/\/unicompex.com\/en\/category\/generator-set\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2021\/02\/image-15.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2021\/02\/image-15.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2021\/02\/image-15.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2021\/02\/image-15.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2021\/02\/image-15.png?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":4165,"url":"https:\/\/unicompex.com\/en\/2023\/08\/31\/8-conseils-avant-de-demarrer-votre-groupe-electrogene\/","url_meta":{"origin":2651,"position":3},"title":"8 tips before starting your generator set","author":"SAV Unicompex","date":"31\/08\/2023","format":false,"excerpt":"8 tips before starting your generator. Fuel level \u2705 Lubricant level \u2705 Battery charged \u2705 Circuit breaker off \u2705 Coolant level \u2705 Serviced less than 6 months or 250h \u2705 No visible leaks \u2705 No alarms \u2705 UNICOMPEX.COM \u2699\ufe0f FGWILSON.COM","rel":"","context":"In &quot;Groupe Electrog\u00e8ne&quot;","block_context":{"text":"Groupe Electrog\u00e8ne","link":"https:\/\/unicompex.com\/en\/category\/generator-set\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2023\/08\/conseils-pour-votre-groupe-electrogene-fg-wilson.png?fit=675%2C1200&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2023\/08\/conseils-pour-votre-groupe-electrogene-fg-wilson.png?fit=675%2C1200&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2023\/08\/conseils-pour-votre-groupe-electrogene-fg-wilson.png?fit=675%2C1200&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":2143,"url":"https:\/\/unicompex.com\/en\/2021\/06\/16\/fg-wilson-generator-sets-available-in-kinshasa\/","url_meta":{"origin":2651,"position":4},"title":"FG Wilson generator sets available in Kinshasa","author":"K Emilio Noorani","date":"16\/06\/2021","format":false,"excerpt":"Buy an FG Wilson generator from stock. Between 12 and 660 kVA available.","rel":"","context":"In &quot;Groupe Electrog\u00e8ne&quot;","block_context":{"text":"Groupe Electrog\u00e8ne","link":"https:\/\/unicompex.com\/en\/category\/generator-set\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2021\/02\/20210202_152003.jpg?fit=1200%2C560&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2021\/02\/20210202_152003.jpg?fit=1200%2C560&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2021\/02\/20210202_152003.jpg?fit=1200%2C560&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2021\/02\/20210202_152003.jpg?fit=1200%2C560&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2021\/02\/20210202_152003.jpg?fit=1200%2C560&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":41,"url":"https:\/\/unicompex.com\/en\/2020\/10\/21\/un-groupe-electrogene-fg-wilson-cest-quoi\/","url_meta":{"origin":2651,"position":5},"title":"What is an FG Wilson generator set?","author":"K Emilio Noorani","date":"21\/10\/2020","format":false,"excerpt":"An FG Wilson generator is always white with a blue logo, and can be open, without a canopy or soundproofed. A generator is a heat engine coupled to a power alternator. FG Wilson is one of the largest manufacturers of generator sets in the world. It has...","rel":"","context":"In &quot;Educatif&quot;","block_context":{"text":"Educatif","link":"https:\/\/unicompex.com\/en\/category\/educational\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2020\/10\/1106d_11_comp.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2020\/10\/1106d_11_comp.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2020\/10\/1106d_11_comp.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2020\/10\/1106d_11_comp.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/unicompex.com\/wp-content\/uploads\/2020\/10\/1106d_11_comp.png?resize=1050%2C600&ssl=1 3x"},"classes":[]}],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/unicompex.com\/en\/wp-json\/wp\/v2\/posts\/2651","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/unicompex.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/unicompex.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/unicompex.com\/en\/wp-json\/wp\/v2\/users\/15853940"}],"replies":[{"embeddable":true,"href":"https:\/\/unicompex.com\/en\/wp-json\/wp\/v2\/comments?post=2651"}],"version-history":[{"count":23,"href":"https:\/\/unicompex.com\/en\/wp-json\/wp\/v2\/posts\/2651\/revisions"}],"predecessor-version":[{"id":2679,"href":"https:\/\/unicompex.com\/en\/wp-json\/wp\/v2\/posts\/2651\/revisions\/2679"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/unicompex.com\/en\/wp-json\/wp\/v2\/media\/2661"}],"wp:attachment":[{"href":"https:\/\/unicompex.com\/en\/wp-json\/wp\/v2\/media?parent=2651"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/unicompex.com\/en\/wp-json\/wp\/v2\/categories?post=2651"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/unicompex.com\/en\/wp-json\/wp\/v2\/tags?post=2651"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}