{"id":37694,"date":"2026-07-30T14:02:41","date_gmt":"2026-07-30T13:02:41","guid":{"rendered":"https:\/\/catalinx.ro\/wordpress\/?p=37694"},"modified":"2026-07-30T14:25:10","modified_gmt":"2026-07-30T13:25:10","slug":"dunare-daca-n-aveam-oltul-dunare-l-faceam-cernavoda-prin-loboda","status":"publish","type":"post","link":"https:\/\/catalinx.ro\/wordpress\/?p=37694","title":{"rendered":"\u201dDun\u0103re dac\u0103 n-aveam, Oltul Dun\u0103re-l f\u0103ceam\u201d – Cernavod\u0103 prin lobod\u0103"},"content":{"rendered":"
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*\u0218tiu c\u0103 era \u201dJiul\u201d dar io nu-s Tudor Gheorghe.
Bolojan ne spune<\/a> s\u0103 nu mai consum\u0103m curent – NET0 p\u00e2n\u0103 revine debitul pe Dun\u0103re, c\u0103 e scump. Nu mereu, dar seara \u00eentre 8 \u0219i 11 noaptea, ceva mai bine dec\u00e2t pe vremea lui \u00cempu\u0219catu’ c\u00e2nd ni-l t\u0103iau ei, c\u0103 e scump!<\/p>\n\n\n\n

Dar exist\u0103 un motiv pentru care \u0103luia i se spune \u201d\u00eempu\u0219catu’\u201d, cum ar veni c\u0103 chiar \u201dd-aia am murit noi la revolu\u021bie\u201d.
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E amuzant c\u0103 atunci c\u00e2nd nu facem energie pe hidro, c\u0103 e secet\u0103 se opre\u0219te \u0219i centrala nuclear\u0103<\/a>.

\u0218i \u00eencep s\u0103 apar\u0103 \u00eentreb\u0103ri , ca asta de la Radu<\/a>, c\u0103 de ceeee, domnee, mai facem reactoare nucleare \u00een loc s\u0103 descentraliz\u0103m re\u021beaua de curent electric \u0219i s\u0103 facem numai panouri-panouri \u0219i fofeze-fofeze. \u00centreb\u0103ri retardate, s\u0103 ne \u00een\u021belegem ,dar doar nu credem c\u0103 numai nem\u021bii au fost pro\u0219ti c\u00e2nd au apucat-o pe drumul pavat cu eco \u0219i greenwash al eolienelor \u0219i instala\u021biilor solare, \u00eenchiz\u00e2nd centralele nucleare, iar acum sug pula pe c\u0103rbuni \u0219i se dezindustrializeaz\u0103<\/a>, printre altele, \u0219i c\u0103 e energia nerezonabil de scump\u0103.

Tot o s\u0103 auzim genul \u0103sta de retoric\u0103 t\u00e2mpit\u0103, care o s\u0103 ignore c\u0103 aser\u021biunea c\u0103 mereu bate v\u00e2ntul sau e soare – e fals\u0103 \u0219i c\u0103 ai nevoie de curent \u0219i noaptea \u0219i iarna, sau c\u00e2nd plou\u0103 \u0219i nu bate v\u00e2ntul , sau c\u00e2nd e iarn\u0103 nuclear\u0103 \u0219i erupe vreun vulcan, sau sau.
Trebuie mai multe nucleare p\u00e2n\u0103 s\u0103 avem o re\u021bea din soare balansat\u0103 din baterii \u0219i chiar \u0219i atunci e bun\u0103 o nuclear\u0103 – pe sistem diversificare.<\/p>\n\n\n\n

Ce e nevoie e o alt\u0103 paradigm\u0103 a r\u0103cirii.
Sistemul de r\u0103cire de la Cernavod\u0103 func\u021bioneaz\u0103 cam a\u0219a:
Aburul produs de reactoarele nucleare \u0219i trecut prin turbine , merge \u00eentr-un condensator, cam \u021buica de la cazan \u00een serpentina din butoiul cu ap\u0103, cu excep\u021bia c\u0103 nu folosesc musai un butoi, ci un circuit deschis cu evacuarea c\u0103ldurii pe Dun\u0103re.
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Evacuarea trebuie s\u0103 se fac\u0103 astfel \u00eenc\u00e2t ecosistemul s\u0103 nu fie distrus, nu vrei s\u0103 fierbi pe\u0219tii, drept care gradientul de temperatur\u0103 evacuat de la condensator ( 7 – 10 grade ) s\u0103 nu se resimt\u0103 \u00een aceea\u0219i m\u0103sur\u0103 pe r\u00e2u, pe c\u00e2t posibil.
Studiile de mediu<\/a> urm\u0103resc \u201dpana termic\u0103\u201d ( thermal plume) p\u00e2n\u0103 la gradiente de 1 grad Celsius, ca av\u00e2nd efecte m\u0103surabile asupra mediului. C\u0103 asta ne opre\u0219te de la a \u021bine Centrala aia s\u0103 duduie – mediul, c\u0103 avem din astea cu \u201dprotec\u021bia mediului\u201d \u0219i \u201dnorme de mediu\u201d – dac\u0103 eram io dictator, eram cu \u201dd\u0103-i, b\u0103, s\u0103 zac\u0103\u201d, pe model Ceau\u0219escu, c\u0103 ce frumos era atunci, c\u00e2nd \u00eei d\u0103deau s\u0103 zac\u0103 la Oltchim \u0219i treceau lin pe\u0219ti mor\u021bi cu bur\u021bile \u00een sus pe Olt, de nu-i m\u00e2ncau nici porcii, o minun\u0103\u021bie \u0219i o frumuse\u021be de copil\u0103rie.
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Colac peste pup\u0103z\u0103, c\u00e2nd scade nivelul Dun\u0103rii , \u00een spe\u021b\u0103, din cauza debitului redus, cre\u0219te \u0219i temperatura apei<\/a> \u0219i nu mai suport\u0103 at\u00e2ta dilu\u021bie de ap\u0103 mai cald\u0103, te-ai fi g\u00e2ndit?<\/p>\n\n\n\n

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Pentru a putea func\u021biona cu un debit redus al Dun\u0103rii, e necesar\u0103 o solu\u021bie alternativ\u0103 de r\u0103cire. P\u0103rerea mea. Mai degrab\u0103 dec\u00e2t s\u0103 nu mai construim reactoare nucleare. Sunt necesari cam 46m3\/s per Gigawatt<\/a> ( pagina 8 ), deci circa 70m3\/s la 1.5GW la r\u0103cirea \u00een regim deschis, Cernavod\u0103 are capacitate de 92 m3\/s<\/a> ( pagina 72) , iar la nivelul minim, canalul de aduc\u021biune are un debit de 227 m3\/s – ce vrea s\u0103 spun\u0103 c\u0103 nu avem o problem\u0103 tehnic\u0103 de r\u0103cire, ci una de mediu ( ideologic\u0103, dac\u0103 vrei ) de \u00eenc\u0103lzire , c\u0103 nu vrem s\u0103 risc\u0103m s\u0103 moar\u0103 pe\u0219tii , s\u0103 tulbur\u0103m ecosistemul.
Principii. \u0218i dac\u0103 avem principii, exist\u0103 solu\u021bii, dar pe bani.

Una din cele mai comune e cu turn de r\u0103cire prin evaporare. Pentru o capacitate de 2 reactoare, solu\u021bia asta poate s\u0103 coste jum\u0103tate de miliard de euro, a\u0219a ochiometric.
Dar o solu\u021bie de genul \u0103la ar consuma ceva de genul 1.5 – 2 m3\/s de ap\u0103 ( ar evapora-o) pentru a r\u0103ci 3GW de c\u0103ldur\u0103 ( reactoarele au puterea termic\u0103 de 4.36GWth<\/a> fiecare, la circa 1.3GW de energie electric\u0103 net\u0103 produs\u0103 – diferen\u021ba trebuie evacuat\u0103 drept c\u0103ldur\u0103) .
Se bazeaz\u0103 pe metoda bulbului umed ( wet bulb), pe care func\u021bioneaz\u0103 r\u0103cirea \u0219i-n organismul uman. 1kg de ap\u0103 are c\u0103ldura latent\u0103 de vaporizare circa 2.4MJ\/kg ( la temperatura de 30 de grade C). 3GW = 3GJ\/s => 3000MJ\/s = 1.25tone ap\u0103\/ secund\u0103 circa 1.25m3\/s.

Un lac cu o suprafa\u021b\u0103 evaporativ\u0103 de 10km2 cam rezolv\u0103 problema prin evapora\u021bie superficial\u0103<\/a> – f\u0103r\u0103 a fi nevoie de turnuri de r\u0103cire.

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Treaba asta n-am inventat-o eu acuma, a fost folosit\u0103 la o central\u0103 infam\u0103, Cernob\u00e2l – un lac de acumulare de pe r\u00e2ul Pripyat<\/a>, fix cu scopul \u0103sta. <\/p>\n\n\n\n

Cu pl\u0103cere.<\/p>\n","protected":false},"excerpt":{"rendered":"

*\u0218tiu c\u0103 era \u201dJiul\u201d dar io nu-s Tudor Gheorghe.Bolojan ne spune s\u0103 nu mai consum\u0103m curent – NET0 p\u00e2n\u0103 revine debitul pe Dun\u0103re, c\u0103 e…<\/p>\n","protected":false},"author":2,"featured_media":37705,"comment_status":"open","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,"_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":[3499,3539],"tags":[7480],"class_list":["post-37694","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-economie","category-energie","tag-centrala-nucleara-de-la-cernavoda"],"views":55,"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/catalinx.ro\/wordpress\/wp-content\/uploads\/2026\/07\/image-88.png","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p4Eq23-9NY","jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/catalinx.ro\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/37694","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/catalinx.ro\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/catalinx.ro\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/catalinx.ro\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/catalinx.ro\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=37694"}],"version-history":[{"count":5,"href":"https:\/\/catalinx.ro\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/37694\/revisions"}],"predecessor-version":[{"id":37711,"href":"https:\/\/catalinx.ro\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/37694\/revisions\/37711"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/catalinx.ro\/wordpress\/index.php?rest_route=\/wp\/v2\/media\/37705"}],"wp:attachment":[{"href":"https:\/\/catalinx.ro\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=37694"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/catalinx.ro\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=37694"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/catalinx.ro\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=37694"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}