{"id":9616,"date":"2019-07-29T14:32:25","date_gmt":"2019-07-29T11:32:25","guid":{"rendered":"https:\/\/businessexpress.ro\/?p=9616"},"modified":"2019-07-29T14:32:30","modified_gmt":"2019-07-29T11:32:30","slug":"motorul-fotovoltaic-inovatia-care-va-ajuta-dronele-sa-zboare-zile-intregi","status":"publish","type":"post","link":"https:\/\/businessexpress.ro\/ro\/motorul-fotovoltaic-inovatia-care-va-ajuta-dronele-sa-zboare-zile-intregi\/","title":{"rendered":"Motorul fotovoltaic, inova\u021bia care va ajuta dronele s\u0103 zboare zile \u00eentregi"},"content":{"rendered":"
\"\"<\/figure>\n\n\n\n

Cercet\u0103torii de la Berkeley Universitatea California, au stabilit un nou record \u00een domeniul eficien\u021bei fotovoltaice, o realizare care ar putea conduce la un motor ultra u\u0219or, care s\u0103 poat\u0103 ac\u021biona timp de c\u00e2teva zile.<\/p>\n\n\n\n

Termo-fotovoltaicul este o surs\u0103 de energie ultra-u\u0219oar\u0103 care ar putea permite vehiculelor aeriene f\u0103r\u0103 pilot s\u0103 func\u021bioneze continuu c\u00e2teva zile. De asemenea, ar putea fi folosit\u0103 pentru a \u00eenc\u0103lzi o \u00eentreag\u0103 cas\u0103 cu un generator de forma unui plic. <\/p>\n\n\n\n

\u00centr-un articol publicat \u00een Proceedings of the National Academy of Sciences<\/a>, o revist\u0103 \u0219tiinific\u0103 din cadrul Academiei de \u0218tiin\u021be ale Statelor Unite ale Americii, Eli Yablonovitch profesor de inginerie electric\u0103 \u0219i informatic\u0103<\/a>, a vorbit despre energia termo-fotovoltaic\u0103.<\/p>\n\n\n\n

“Termo-fotovoltaicii sunt compacte \u0219i extrem de eficiente pentru o gam\u0103 larg\u0103 de aplica\u021bii, de la cele care necesit\u0103 100 de wa\u021bi (ca) un vehicul aerian u\u0219or , f\u0103r\u0103 echipaj, la 100 de megawa\u021bi, furniz\u00e2nd electricitate pentru 36.000 de case”, a spus Eli Yablonovitch.<\/p><\/blockquote>\n\n\n\n

Potrivit lui Yablonovitch, aceast\u0103 descoperire se bazeaz\u0103 pe munca depus\u0103 de el \u0219i de studen\u021bii lui , care au constatat c\u0103 pentru cre\u0219terea eficien\u021bei celulelor solare, nu a fost nevoie de absorb\u021bia mai multor fotoni (lumin\u0103), ci de emiterea acestora. Prin ad\u0103ugarea unei oglinzi cu reflec\u021bie foarte puternic\u0103 pe spatele unei celule fotovoltaice, au stabilit un nou record de eficien\u021b\u0103 \u0219i au continuat s\u0103 fac\u0103 asta \u0219i \u00een cercet\u0103rile ulterioare. <\/p>\n\n\n\n

“Ceea ce face oglinda este s\u0103 creeze un gaz foton luminos \u00een infraro\u0219u dens \u00een interiorul celulei solare, un fenomen care adaug\u0103 tensiune”, a spus Yablonovitch.<\/p><\/blockquote>\n\n\n\n

Recent, echipa lui a recunoscut c\u0103 aceast\u0103 oglind\u0103 ar putea avea rol dublu. De fapt, aceasta rezolv\u0103 una dintre cele mai mari provoc\u0103ri ale termo-fotovoltaicii : cum s\u0103 exploateze fotoni termici (c\u0103ldur\u0103) care au prea pu\u021bin\u0103 energie pentru a produce energie electric\u0103. <\/p>\n\n\n\n

Se pare c\u0103 oglinda poate reflecta fotonii mici pentru a re\u00eenc\u0103lzi sursa termic\u0103, oferind o a doua \u0219ans\u0103 de a crea un foton de energie \u00eenalt\u0103 \u0219i de a genera electricitate. Acest fenomen conduce la o eficien\u021b\u0103 f\u0103r\u0103 precedent. <\/p>","protected":false},"excerpt":{"rendered":"

Cercet\u0103torii de la Berkeley Universitatea California, au stabilit un nou record \u00een domeniul eficien\u021bei fotovoltaice, o realizare care ar putea conduce la un motor ultra u\u0219or, care s\u0103 poat\u0103 ac\u021biona timp de c\u00e2teva zile. Termo-fotovoltaicul este o surs\u0103 de energie ultra-u\u0219oar\u0103 care ar putea permite vehiculelor aeriene f\u0103r\u0103 pilot s\u0103 […]<\/p>\n","protected":false},"author":1,"featured_media":9624,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"wpzoom_is_breaking":0,"source_url":"","_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},"jetpack_post_was_ever_published":false},"categories":[12],"tags":[2198,2199,2194,2197,2195,2196,2200],"class_list":["post-9616","post","type-post","status-publish","format-standard","has-post-thumbnail","category-technology","tag-berkeley-universitatea-california","tag-cercetatori","tag-drona","tag-energie-electrica","tag-energie-fotovoltaica","tag-motor-fotovoltaic","tag-sursa-de-energie"],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/paH2fj-2v6","jetpack_featured_media_url":"https:\/\/i0.wp.com\/businessexpress.ro\/wp-content\/uploads\/2019\/07\/dron%C4%83-motor-fotovoltaic.jpg?fit=800%2C467&ssl=1","_links":{"self":[{"href":"https:\/\/businessexpress.ro\/ro\/wp-json\/wp\/v2\/posts\/9616","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/businessexpress.ro\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/businessexpress.ro\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/businessexpress.ro\/ro\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/businessexpress.ro\/ro\/wp-json\/wp\/v2\/comments?post=9616"}],"version-history":[{"count":8,"href":"https:\/\/businessexpress.ro\/ro\/wp-json\/wp\/v2\/posts\/9616\/revisions"}],"predecessor-version":[{"id":9625,"href":"https:\/\/businessexpress.ro\/ro\/wp-json\/wp\/v2\/posts\/9616\/revisions\/9625"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/businessexpress.ro\/ro\/wp-json\/wp\/v2\/media\/9624"}],"wp:attachment":[{"href":"https:\/\/businessexpress.ro\/ro\/wp-json\/wp\/v2\/media?parent=9616"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/businessexpress.ro\/ro\/wp-json\/wp\/v2\/categories?post=9616"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/businessexpress.ro\/ro\/wp-json\/wp\/v2\/tags?post=9616"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}