{"id":10285,"date":"2024-02-23T12:40:14","date_gmt":"2024-02-23T12:40:14","guid":{"rendered":"https:\/\/dailyai.com\/?p=10285"},"modified":"2024-03-28T00:38:10","modified_gmt":"2024-03-28T00:38:10","slug":"nuclear-fusion-and-ai-an-evolving-symbiotic-relationship","status":"publish","type":"post","link":"https:\/\/dailyai.com\/pt\/2024\/02\/nuclear-fusion-and-ai-an-evolving-symbiotic-relationship\/","title":{"rendered":"Fus\u00e3o nuclear e IA: uma rela\u00e7\u00e3o simbi\u00f3tica em evolu\u00e7\u00e3o"},"content":{"rendered":"<p><strong>No Centro Andlinger da Universidade de Princeton, uma equipa interdisciplinar de engenheiros, f\u00edsicos e cientistas de dados, em colabora\u00e7\u00e3o com o Laborat\u00f3rio de F\u00edsica de Plasmas de Princeton (PPPL), utilizou a IA para abordar as instabilidades do plasma na fus\u00e3o nuclear.\u00a0<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">A energia de fus\u00e3o, que reflecte o processo de alimenta\u00e7\u00e3o do Sol, utiliza uma press\u00e3o e um calor imensos para fundir \u00e1tomos, libertando grandes quantidades de energia.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Replicar isto na Terra implica confinar plasma ultra quente com poderosos campos magn\u00e9ticos dentro de reactores tokamak - dispositivos complexos frequentemente apelidados de \"estrelas em jarros\". No entanto, i<\/span><span style=\"font-weight: 400;\">os confins de um reator de fus\u00e3o, o plasma \u00e9 notoriamente vol\u00e1til, podendo desestabilizar-se e romper as barreiras magn\u00e9ticas concebidas para o conter.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Em experi\u00eancias realizadas no <\/span><a href=\"https:\/\/www.ga.com\/magnetic-fusion\/diii-d\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Instala\u00e7\u00e3o Nacional de Fus\u00e3o DIII-D em San Diego<\/span><\/a><span style=\"font-weight: 400;\">No \u00e2mbito do projeto \"A Europa e o Futuro\", uma equipa de investigadores apresentou um modelo de IA que, baseando-se apenas em dados experimentais hist\u00f3ricos, consegue prever o aparecimento de \"instabilidades em modo de rutura\" - um tipo particular de perturba\u00e7\u00e3o do plasma - com uma anteced\u00eancia de at\u00e9 300 milissegundos.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Os investigadores utilizaram uma rede neural profunda treinada em dados anteriores do tokamak DIII-D para prever futuras instabilidades com base nas caracter\u00edsticas do plasma em tempo real.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Este modelo serviu ent\u00e3o de base a um algoritmo de aprendizagem por refor\u00e7o (RL), que refinou iterativamente as suas estrat\u00e9gias de controlo atrav\u00e9s de experi\u00eancias simuladas, aprendendo a manter n\u00edveis de pot\u00eancia elevados e a evitar instabilidades. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">As conclus\u00f5es da equipa foram publicadas numa revista <\/span><a href=\"https:\/\/www.nature.com\/articles\/s41586-024-07024-9\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">estudo na Nature<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Azarakhsh Jalalvand, um dos autores, comparou o processo ao treino de voo, em que um piloto aprende num simulador antes de assumir o controlo de um avi\u00e3o real.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\"N\u00e3o se ensina uma pessoa entregando-lhe um conjunto de chaves e dizendo-lhe para dar o seu melhor\", observou Jalalvand, sublinhando a import\u00e2ncia de um processo de aprendizagem gradual e informado para a IA.<\/span><\/p>\n<figure id=\"attachment_10286\" aria-describedby=\"caption-attachment-10286\" style=\"width: 783px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-10286 size-full\" src=\"https:\/\/dailyai.com\/wp-content\/uploads\/2024\/02\/nuclearfusion.png\" alt=\"Fus\u00e3o de IA\" width=\"783\" height=\"958\" srcset=\"https:\/\/dailyai.com\/wp-content\/uploads\/2024\/02\/nuclearfusion.png 783w, https:\/\/dailyai.com\/wp-content\/uploads\/2024\/02\/nuclearfusion-245x300.png 245w, https:\/\/dailyai.com\/wp-content\/uploads\/2024\/02\/nuclearfusion-768x940.png 768w, https:\/\/dailyai.com\/wp-content\/uploads\/2024\/02\/nuclearfusion-370x453.png 370w, https:\/\/dailyai.com\/wp-content\/uploads\/2024\/02\/nuclearfusion-740x905.png 740w, https:\/\/dailyai.com\/wp-content\/uploads\/2024\/02\/nuclearfusion-20x24.png 20w, https:\/\/dailyai.com\/wp-content\/uploads\/2024\/02\/nuclearfusion-39x48.png 39w\" sizes=\"auto, (max-width: 783px) 100vw, 783px\" \/><figcaption id=\"caption-attachment-10286\" class=\"wp-caption-text\">a. O gr\u00e1fico mostra como os actuadores se comportam ao longo do tempo, com controlo de IA (a azul) e sem ele (a preto). As linhas vermelhas marcam os limiares para al\u00e9m dos quais a estabilidade do plasma pode ser comprometida. b. Esta parte ilustra a probabilidade prevista de instabilidades de rasgamento influenciadas pelos ajustes dos actuadores. c. Aqui, vemos o efeito previsto do controlo dos actuadores na manuten\u00e7\u00e3o da press\u00e3o do plasma dentro dos n\u00edveis normalizados. d. Esta sec\u00e7\u00e3o mostra como se espera que o plasma evolua dentro de um conjunto de par\u00e2metros, guiado pelas interven\u00e7\u00f5es estrat\u00e9gicas do controlo da IA. Fonte: <a href=\"https:\/\/www.nature.com\/articles\/s41586-024-07024-9\/figures\/2\">Natureza<\/a> (Acesso livre)<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">Ap\u00f3s a valida\u00e7\u00e3o do desempenho da simula\u00e7\u00e3o do controlador de IA, a equipa procedeu a testes reais no tokamak DIII-D, onde observaram que a IA manipulava com \u00eaxito os par\u00e2metros do reator para reduzir as instabilidades.\u00a0<\/span><\/p>\n<figure id=\"attachment_10301\" aria-describedby=\"caption-attachment-10301\" style=\"width: 738px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-10301\" src=\"https:\/\/dailyai.com\/wp-content\/uploads\/2024\/02\/tokamak-1024x803.png\" alt=\"\" width=\"738\" height=\"579\" srcset=\"https:\/\/dailyai.com\/wp-content\/uploads\/2024\/02\/tokamak-1024x803.png 1024w, https:\/\/dailyai.com\/wp-content\/uploads\/2024\/02\/tokamak-300x235.png 300w, https:\/\/dailyai.com\/wp-content\/uploads\/2024\/02\/tokamak-768x603.png 768w, https:\/\/dailyai.com\/wp-content\/uploads\/2024\/02\/tokamak-370x290.png 370w, https:\/\/dailyai.com\/wp-content\/uploads\/2024\/02\/tokamak-800x628.png 800w, https:\/\/dailyai.com\/wp-content\/uploads\/2024\/02\/tokamak-20x16.png 20w, https:\/\/dailyai.com\/wp-content\/uploads\/2024\/02\/tokamak-740x581.png 740w, https:\/\/dailyai.com\/wp-content\/uploads\/2024\/02\/tokamak-61x48.png 61w, https:\/\/dailyai.com\/wp-content\/uploads\/2024\/02\/tokamak.png 1114w\" sizes=\"auto, (max-width: 738px) 100vw, 738px\" \/><figcaption id=\"caption-attachment-10301\" class=\"wp-caption-text\">Um tokamak \u00e9 um dispositivo utilizado na investiga\u00e7\u00e3o da fus\u00e3o nuclear, concebido para confinar um plasma atrav\u00e9s de campos magn\u00e9ticos. \u00c9 um dos tipos de reactores de fus\u00e3o mais investigados, com o objetivo final de produzir energia de fus\u00e3o termonuclear controlada. O tokamak caracteriza-se pela sua configura\u00e7\u00e3o toroidal (em forma de donut), que \u00e9 considerada eficaz para conter o plasma de alta temperatura necess\u00e1rio para as reac\u00e7\u00f5es de fus\u00e3o.<\/figcaption><\/figure>\n<p>Os poderes preditivos breves, mas cr\u00edticos, do controlador de IA permitem que o sistema ajuste os par\u00e2metros operacionais em tempo real, evitando as instabilidades e mantendo o equil\u00edbrio do plasma no campo magn\u00e9tico do reator.<\/p>\n<p><span style=\"font-weight: 400;\">O Professor Egemen Kolemen, que liderou a investiga\u00e7\u00e3o, <a href=\"https:\/\/www.eurekalert.org\/news-releases\/1034781?\" target=\"_blank\" rel=\"noopener\">explicou a abordagem da equipa<\/a>A IA poderia desenvolver uma pol\u00edtica de controlo final que suportasse um regime de plasma est\u00e1vel e de alta pot\u00eancia em tempo real, num reator real\".\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Jaemin Seo, do Departamento de Engenharia Mec\u00e2nica e Aeroespacial, falou sobre o facto de a previs\u00e3o precisa e r\u00e1pida ser a base deste estudo, referindo: \"Os estudos anteriores centraram-se geralmente na supress\u00e3o ou atenua\u00e7\u00e3o dos efeitos destas instabilidades de rasgamento ap\u00f3s a sua ocorr\u00eancia no plasma. Mas a nossa abordagem permite-nos prever e evitar essas instabilidades antes de elas aparecerem.\"<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\"As instabilidades em modo de rasgamento s\u00e3o uma das principais causas da rutura do plasma e tornar-se-\u00e3o ainda mais proeminentes \u00e0 medida que tentarmos realizar reac\u00e7\u00f5es de fus\u00e3o com as pot\u00eancias elevadas necess\u00e1rias para produzir energia suficiente\", explicou Seo.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Para o futuro, os investigadores planeiam reunir mais provas do desempenho do controlador de IA e alargar as suas capacidades a outros tokamaks e instabilidades de plasma.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0\"Temos fortes ind\u00edcios de que o controlador funciona bastante bem em DIII-D, mas precisamos de mais dados para mostrar que pode funcionar numa s\u00e9rie de situa\u00e7\u00f5es diferentes\", observou Seo, delineando o caminho a seguir.<\/span><\/p>\n<h2>Colmatar o fosso energ\u00e9tico da IA com a fus\u00e3o nuclear<\/h2>\n<p><span style=\"font-weight: 400;\">O estudo de Princeton demonstra como a IA pode apoiar a fus\u00e3o, mas a fus\u00e3o tamb\u00e9m pode apoiar a IA.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Em muitos aspectos, a IA tem uma rela\u00e7\u00e3o simbi\u00f3tica, mas fr\u00e1gil, com a energia. As provas sugerem fortemente que o crescimento exponencial da IA generativa est\u00e1 a conduzir a um consumo de energia impressionante, que j\u00e1 rivaliza com o consumo de energia do <a href=\"https:\/\/dailyai.com\/pt\/2023\/10\/ai-could-consume-the-same-energy-as-the-netherlands-by-2027\/\">consumo das pequenas na\u00e7\u00f5es<\/a>.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">A ess\u00eancia do dilema reside na infraestrutura fundamental da IA - os centros de dados. Estas vastas instala\u00e7\u00f5es digitais s\u00e3o famosas pelas suas colossais necessidades de energia e \u00e1gua.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">A Ag\u00eancia Internacional da Energia (AIE) destacou recentemente a crescente pegada dos centros de dados, que j\u00e1 consomem mais de 1,3% da eletricidade mundial.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">As projec\u00e7\u00f5es do Boston Consulting Group e da Uni\u00e3o Europeia pintam um quadro sombrio, com <a href=\"https:\/\/dailyai.com\/pt\/2024\/02\/data-center-energy-demands-soar-because-of-ai-how-do-we-sustain-it\/\">necessidades energ\u00e9ticas dos centros de dados<\/a> potencialmente duplicando ou mesmo triplicando nos pr\u00f3ximos anos, exacerbando os desafios energ\u00e9ticos.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Em resposta, a Big Tech est\u00e1 a refor\u00e7ar a cada dia que passa as suas infra-estruturas energ\u00e9ticas, ao mesmo tempo que considera a energia nuclear, incluindo a fus\u00e3o.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Microsoft <\/span><a href=\"https:\/\/dailyai.com\/pt\/2023\/09\/microsoft-is-going-nuclear-to-power-its-ai-cloud-computing\/\"><span style=\"font-weight: 400;\">abriu recentemente um an\u00fancio de emprego<\/span><\/a><span style=\"font-weight: 400;\"> para um \"Principal Program Manager Nuclear Technology\" e tem como objetivo desenvolver uma estrat\u00e9gia global centrada em pequenos reactores modulares (SMR) e micro-reactores, demonstrando conhecimento das quest\u00f5es energ\u00e9ticas iminentes com que se confronta a IA.<\/span><\/p>\n<p>Recentemente,<span style=\"font-weight: 400;\">\u00a0<\/span><a href=\"https:\/\/www.helionenergy.com\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Energia de Helion<\/span><\/a><span style=\"font-weight: 400;\">A empresa de investiga\u00e7\u00e3o e desenvolvimento OpenAI, apoiada por Sam Altman da OpenAI, anunciou a sua inten\u00e7\u00e3o de lan\u00e7ar a primeira central el\u00e9ctrica de fus\u00e3o do mundo dentro de cinco anos.\u00a0<\/span><\/p>\n<blockquote class=\"twitter-tweet\">\n<p dir=\"ltr\" lang=\"en\">Se o Helion funcionar, n\u00e3o s\u00f3 \u00e9 uma potencial sa\u00edda para a crise clim\u00e1tica, como tamb\u00e9m um caminho para uma qualidade de vida muito superior.<\/p>\n<p>Adorei estar envolvido nos \u00faltimos 7 anos e estou entusiasmado por estar a investir mais. O David e o Chris s\u00e3o fant\u00e1sticos.<\/p>\n<p>- Sam Altman (@sama) <a href=\"https:\/\/twitter.com\/sama\/status\/1456617569520009223?ref_src=twsrc%5Etfw\">5 de novembro de 2021<\/a><\/p><\/blockquote>\n<p><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><br \/>\n<span style=\"font-weight: 400;\">Como explica o estudo de Princeton, as reac\u00e7\u00f5es de fus\u00e3o s\u00e3o imensamente complexas de conter e imprevis\u00edveis. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">No entanto, outro desafio central \u00e9 conseguir um \"ganho l\u00edquido de energia\", ou seja, o processo de fus\u00e3o produz mais energia do que a que consome.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">A Helion enfrenta desafios t\u00e9cnicos consider\u00e1veis. Jessica Lovering, do Good Energy Collective, destaca dois grandes obst\u00e1culos: \"produzir mais energia do que o processo utiliza - e converter essa energia numa forma consistente e acess\u00edvel de eletricidade que possa entrar na rede\".\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">At\u00e9 \u00e0 data, apenas a Instala\u00e7\u00e3o Nacional de Igni\u00e7\u00e3o de Lawrence Livermore conseguiu um \"ganho cient\u00edfico l\u00edquido de energia\" com a fus\u00e3o, mas n\u00e3o um \"ganho de engenharia\", que considera o consumo total de energia para o processo.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Por outras palavras, garantir ganhos l\u00edquidos de energia de todo o processo de fus\u00e3o, incluindo os esfor\u00e7os de engenharia, \u00e9 fundamental para tornar a fus\u00e3o uma tecnologia energ\u00e9tica vi\u00e1vel e n\u00e3o uma experi\u00eancia dispendiosa.\u00a0<\/span><\/p>\n<blockquote class=\"twitter-tweet\">\n<p dir=\"ltr\" lang=\"en\">onde <a href=\"https:\/\/twitter.com\/Helion_Energy?ref_src=twsrc%5Etfw\">@Helion_Energy<\/a> em breve come\u00e7ar\u00e1 a instalar o polaris: <a href=\"https:\/\/t.co\/Tk7znzvOPg\">pic.twitter.com\/Tk7znzvOPg<\/a><\/p>\n<p>- Sam Altman (@sama) <a href=\"https:\/\/twitter.com\/sama\/status\/1753250549045018728?ref_src=twsrc%5Etfw\">2 de fevereiro de 2024<\/a><\/p><\/blockquote>\n<p><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><br \/>\n<span style=\"font-weight: 400;\">A Helion est\u00e1 a avan\u00e7ar, desenvolvendo o seu s\u00e9timo prot\u00f3tipo, Polaris, que dever\u00e1 demonstrar a produ\u00e7\u00e3o de eletricidade a partir de reac\u00e7\u00f5es de fus\u00e3o em 2024.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Com sede em Everett, Washington, a Helion j\u00e1 assegurou a Microsoft como seu primeiro cliente atrav\u00e9s de um acordo de compra de energia. O seu objetivo \u00e9 que o seu primeiro plano produza pelo menos 50 megawatts (mW) de capacidade.\u00a0<\/span><\/p>\n<blockquote class=\"twitter-tweet\">\n<p dir=\"ltr\" lang=\"en\">a microsoft torna-se o primeiro cliente da helion, no primeiro acordo comercial para energia de fus\u00e3o:<a href=\"https:\/\/t.co\/q9mOeWdR0s\">https:\/\/t.co\/q9mOeWdR0s<\/a><\/p>\n<p>- Sam Altman (@sama) <a href=\"https:\/\/twitter.com\/sama\/status\/1656295333465587712?ref_src=twsrc%5Etfw\">10 de maio de 2023<\/a><\/p><\/blockquote>\n<p><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><br \/>\n<span style=\"font-weight: 400;\">Isto \u00e9 min\u00fasculo em termos de capacidade bruta, com uma turbina e\u00f3lica m\u00e9dia a produzir cerca de 3mW - por isso seria equivalente a um pequeno parque e\u00f3lico. No entanto, uma vez operacional, a Helion produzir\u00e1 energia limpa como outras formas de energia renov\u00e1vel. \u00c9 mais segura do que as centrais de fiss\u00e3o e acabar\u00e1 por se tornar mais barata para produzir em massa.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00c0 medida que os dom\u00ednios digital e f\u00edsico se entrela\u00e7am, as necessidades energ\u00e9ticas da IA e da computa\u00e7\u00e3o em nuvem continuar\u00e3o a aumentar. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">A fus\u00e3o nuclear oferece um vislumbre de um futuro em que a energia limpa e abundante poder\u00e1 impulsionar o desenvolvimento inexor\u00e1vel da IA.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">E, uma vez que a Microsoft, a Altman e outras empresas tecnol\u00f3gicas j\u00e1 est\u00e3o a alinhar-se como investidores e compradores, ser\u00e3o certamente as empresas tecnol\u00f3gicas as primeiras a deitar as m\u00e3os \u00e0 energia de fus\u00e3o. <\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>No Centro Andlinger da Universidade de Princeton, uma equipa interdisciplinar de engenheiros, f\u00edsicos e cientistas de dados, em colabora\u00e7\u00e3o com o Laborat\u00f3rio de F\u00edsica de Plasmas de Princeton (PPPL), utilizou a IA para abordar as instabilidades do plasma na fus\u00e3o nuclear.  A energia de fus\u00e3o, que reflecte o processo de alimenta\u00e7\u00e3o do Sol, utiliza uma press\u00e3o e um calor imensos para fundir \u00e1tomos, libertando grandes quantidades de energia.  Replicar este processo na Terra implica confinar plasma ultra quente com poderosos campos magn\u00e9ticos em reactores tokamak - dispositivos complexos frequentemente apelidados de \"estrelas em frascos\". No entanto, nos limites de um reator de fus\u00e3o, o plasma \u00e9 notoriamente vol\u00e1til, podendo desestabilizar-se e romper as barreiras magn\u00e9ticas concebidas para conter<\/p>","protected":false},"author":2,"featured_media":10287,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[84],"tags":[154,522,540,541],"class_list":["post-10285","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry","tag-climate-change","tag-energy","tag-nuclear","tag-nuclear-fusion"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Nuclear fusion and AI: an evolving, symbiotic relationship | DailyAI<\/title>\n<meta name=\"description\" content=\"At Princeton University&#039;s Andlinger Center, a cross-disciplinary team of engineers, physicists, and data scientists, collaborating with the Princeton Plasma Physics Laboratory (PPPL), have used AI to address plasma instabilities in nuclear fusion.\u00a0\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dailyai.com\/pt\/2024\/02\/nuclear-fusion-and-ai-an-evolving-symbiotic-relationship\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Nuclear fusion and AI: an evolving, symbiotic relationship | DailyAI\" \/>\n<meta property=\"og:description\" content=\"At Princeton University&#039;s Andlinger Center, a cross-disciplinary team of engineers, physicists, and data scientists, collaborating with the Princeton Plasma Physics Laboratory (PPPL), have used AI to address plasma instabilities in nuclear fusion.\u00a0\" \/>\n<meta property=\"og:url\" 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