{"id":6202,"date":"2022-01-11T13:15:33","date_gmt":"2022-01-11T12:15:33","guid":{"rendered":"https:\/\/efterklang.org\/?post_type=projects&p=6202"},"modified":"2022-01-11T13:17:03","modified_gmt":"2022-01-11T12:17:03","slug":"cmpc-och-arauco-chile","status":"publish","type":"projects","link":"https:\/\/efterklang.org\/sv\/projects\/cmpc-och-arauco-chile\/","title":{"rendered":"CMPC och ARAUCO, Chile"},"content":{"rendered":"
Bakgrund<\/h6>\n

\u00c5r 2011 sk\u00e4rptes kraven p\u00e5 maximala niv\u00e5er f\u00f6r omgivningsbuller i Chile. De nya kraven var i paritet med europeisk standard och d\u00e4rmed v\u00e4l bekant f\u00f6r Efterklangs akustikkonsulter.<\/p>\n

Uppdrag<\/h6>\n

Vi har sedan inf\u00f6randet av de nya bullerkraven varit i Chile ett flertal g\u00e5nger f\u00f6r att kartl\u00e4gga externbuller p\u00e5 totalt \u00e5tta fabriker tillh\u00f6rande CMPC och ARAUCO. Ut\u00f6ver bullerkartl\u00e4ggning har det utarbetats handlingsplaner och \u00e5tg\u00e4rdsf\u00f6rslag i \u00f6verenskommelse med det nya regelverket.<\/p>\n

De nya kraven medf\u00f6rde en d\u00e4mpning p\u00e5 2 -10 decibel ner till 50dBA f\u00f6r de aktuella fabrikerna. Att s\u00e4nka ljudniv\u00e5n med upp till 10 decibel var exceptionellt och en stor utmaning f\u00f6r industrierna i Chile. Till skillnad fr\u00e5n fabriker i exempelvis Sverige, har man p\u00e5 grund av klimatet en mer \u00f6ppen produktion med mycket utrustning utomhus, vilket medf\u00f6r h\u00f6gre bullerniv\u00e5er till omgivningen.<\/p>\n

Resultat<\/h6>\n

Genom att systematisk identifiera olika bullerk\u00e4llorna och \u00e5tg\u00e4rda de efterhand, har vi kunnat s\u00e4kerst\u00e4lla att bullerniv\u00e5erna har s\u00e4nkts i enlighet med de nya kraven. I arbetet har vi anv\u00e4nt en akustisk kamera som effektivt identifierat olika st\u00f6rningsk\u00e4llor p\u00e5 fabrikerna. Kameran g\u00f6r att m\u00e4tdata \u00f6verlagras till en videosekvens som ger en visuell och tydlig bild av buller och d\u00e4rmed underl\u00e4ttar arbetet med att identifierar alla st\u00f6rningsk\u00e4llor. Samtidigt ger en akustisk kamer ett bra underlag till best\u00e4llaren, som p\u00e5 s\u00e5 s\u00e4tt f\u00e5r b\u00e4ttre f\u00f6rst\u00e5else av vad som beh\u00f6ver g\u00f6ras f\u00f6r att n\u00e5 kraven f\u00f6r omgivningsbuller<\/p>\n","protected":false},"featured_media":6203,"template":"","project_category":[235,305,306,312],"country":[402],"sector":[374],"class_list":["post-6202","projects","type-projects","status-publish","has-post-thumbnail","hentry","project_category-buller","project_category-bullerkartlaggning","project_category-bullerutredning","project_category-atgardsforslag","country-other-sv","sector-pappersmassa"],"acf":[],"yoast_head":"\nCMPC och ARAUCO, Chile - Efterklang<\/title>\n<meta name=\"description\" content=\"Efterklang har hj\u00e4lpt cellulosakoncernerna CMPC och ARAUCO i Chile med sk\u00e4rpta bullerniv\u00e5er sedan inf\u00f6randet av nya krav p\u00e5 omgivningsbuller.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/efterklang.org\/sv\/projects\/cmpc-och-arauco-chile\/\" \/>\n<meta property=\"og:locale\" content=\"sv_SE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"CMPC och ARAUCO, Chile - 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