{"id":88250,"date":"2025-12-25T16:35:27","date_gmt":"2025-12-25T15:35:27","guid":{"rendered":"https:\/\/balkangreenenergynews.com\/rs\/?p=88250"},"modified":"2025-12-25T16:35:27","modified_gmt":"2025-12-25T15:35:27","slug":"u-nemackoj-razvijene-lagane-lopatice-za-male-vetroturbine-koje-rade-i-pri-slabom-vetru","status":"publish","type":"post","link":"https:\/\/balkangreenenergynews.com\/rs\/u-nemackoj-razvijene-lagane-lopatice-za-male-vetroturbine-koje-rade-i-pri-slabom-vetru\/","title":{"rendered":"U Nema\u010dkoj razvijene lagane lopatice za male vetroturbine koje rade i pri slabom vetru"},"content":{"rendered":"<h2 data-start=\"276\" data-end=\"649\">Istra\u017eiva\u010di sa nema\u010dkog Fraunhofer instituta za primenjena polimerna istra\u017eivanja razvili su, u saradnji sa projektnom kompanijom BBF Group, lagane lopatice za male vetroturbine koje omogu\u0107avaju efikasnu proizvodnju elektri\u010dne energije u podru\u010djima sa slabim vetrom. Novi sistem po\u010dinje da radi ve\u0107 pri brzinama vetra od 2,7 metara u sekundi, \u0161to je znatno ispod praga potrebnog za ve\u0107inu uporedivih re\u0161enja.<\/h2>\n<p data-start=\"1128\" data-end=\"1458\">Za razliku od konvencionalnih <a href=\"https:\/\/balkangreenenergynews.com\/rs\/od-otpada-do-arhitekture-fasada-garaze-u-svedskoj-je-od-rashodovanih-lopatica-vetroturbina\/\">lopatica vetroturbina<\/a>, koje imaju penasto jezgro, nove lopatice koje su razvili istra\u017eiva\u010di sa Fraunhofer instituta izra\u0111ene su nalik \u0161upljim \u0161koljkama iz dva dela.<\/p>\n<p data-start=\"1465\" data-end=\"1793\">Kalupi za svaku polovinu proizvode se industrijskom 3D \u0161tampom, dok se slojevi kompozitnih vlakana u kalup pola\u017eu automatizovanim sistemom sa visokom precizno\u0161\u0107u. Ovakvo projektovanje omogu\u0107ilo je smanjenje mase do 35 odsto, \u0161to rotor \u010dini lak\u0161im za pokretanje pri slabom vetru i slabi mehani\u010dka optere\u0107enja tokom rada, ka\u017eu u institutu.<\/p>\n<p data-start=\"1465\" data-end=\"1793\">Laminatna struktura omogu\u0107ava da rotor izdr\u017ei jake vetrove. \u201ePojedina\u010dne slojeve kompozitnog materijala osmislili smo tako da se lopatice rotora tokom oluje elasti\u010dno savijaju i menjaju ugao u odnosu na vetar, obja\u0161njava Marselo Ambrozio, rukovodilac za simulaciju i projektovanje u Fraunhofer institutu. Na taj na\u010din se brzina rotacije turbine automatski smanjuje i sistem se \u0161titi od preoptere\u0107enja.<\/p>\n<blockquote>\n<p data-start=\"1465\" data-end=\"1793\">Male vetroturbine sa laganim lopaticama dosti\u017eu skoro maksimalni teorijski nivo iskori\u0161\u0107enja energije<\/p>\n<\/blockquote>\n<p>Testiranja su pokazala da nove turbine po\u010dinju da generi\u0161u snagu pri brzinama vetra od 2,7 metara u sekundi, dok je za pokretanje sli\u010dnih sistema potrebna brzina od oko \u010detiri metra u sekundi.<\/p>\n<p data-start=\"1576\" data-end=\"1927\">Ispitivanjima u aerotunelu utvr\u0111eno je da vetroturbina dosti\u017ee do 450 obrtaja u minutu i razvija 2,5 kilovata snage pri brzini vetra od 10 metara u sekundi. Prema navodima istra\u017eiva\u010da, to je u proseku 83 odsto vi\u0161e nego kod uporedivih sistema na tr\u017ei\u0161tu.<\/p>\n<p data-start=\"1576\" data-end=\"1927\">Institut navodi da je efikasnost sistema 53 odsto. A po teorijskom maksimumu definisanim takozvanim Becovim zakonom, nijedna vetroturbina ne mo\u017ee da pretvori vi\u0161e od 59,3 odsto energije vetra u elektri\u010dnu.<\/p>\n<h3 data-start=\"1576\" data-end=\"1927\">Male vetroturbine doprinose nezavisnom snabdevanju energijom<\/h3>\n<p data-start=\"1576\" data-end=\"1927\">&#8222;Efikasne male vetroturbine daju va\u017ean doprinos nezavisnom snabdevanju energijom. Kao projektant i gra\u0111evinska kompanija u regionu Berlin-Brandenburg, ovim projektom pokazujemo kako krajnji korisnici i privreda mogu da oblikuju decentralizovanu proizvodnju energije na individualan i odr\u017eiv na\u010din&#8220;, istakao je Ambrozio.<\/p>\n<p data-start=\"1871\" data-end=\"2237\">Lopatice su projektovane za male vetroturbine koje se mogu jednostavno i fleksibilno instalirati, bez dugotrajnih procedura pribavljanja dozvola. Prema re\u010dima konstruktora, cilj su decentralizovani energetski sistemi za doma\u0107instva, manja preduze\u0107a i vanredne situacije, posebno u regionima gde klasi\u010dne vetroturbine nisu ekonomski isplative.<\/p>\n<p data-start=\"2587\" data-end=\"2888\">Pet prototipova ve\u0107 je isporu\u010deno i trenutno se testira na razli\u010ditim lokacijama kako bi se ispitalo kako visina i polo\u017eaj uti\u010du na performanse. Slede\u0107a faza razvoja uklju\u010duje dodatnu optimizaciju rotora i istra\u017eivanje upotrebe monomaterijala koji bi omogu\u0107ili lak\u0161u recikla\u017eu i bolji ekolo\u0161ki bilans.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>U Nema\u010dkoj su razvijene lagane lopatice za male vetroturbine koje posti\u017eu visoku efikasnost pri malim brzinama vetra <\/p>\n","protected":false},"author":34,"featured_media":88303,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[1],"tags":[6833,848,647,708],"class_list":["post-88250","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-obnovljivi-izvori-energije","tag-decentralizacija-energetike","tag-inovacije","tag-obnovljivi-izvori-energije","tag-vetroturbine","country-regioneu"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>U Nema\u010dkoj razvijene lagane lopatice za male vetroturbine koje rade i pri slabom vetru<\/title>\n<meta name=\"description\" content=\"U Nema\u010dkoj su razvijene lagane 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