{"id":23954,"date":"2023-01-28T19:25:52","date_gmt":"2023-01-28T19:25:52","guid":{"rendered":"https:\/\/catalinx.ro\/wordpress\/?p=23954"},"modified":"2023-01-29T09:40:38","modified_gmt":"2023-01-29T09:40:38","slug":"lada-frigorifica-auto-cu-celula-peltier-peme-aq-27l-peme-aq-27l","status":"publish","type":"post","link":"https:\/\/catalinx.ro\/wordpress\/?p=23954","title":{"rendered":"Lad\u0103 frigorific\u0103 auto cu celul\u0103 Peltier: Peme AQ-27L"},"content":{"rendered":"
<\/div>\n\n

Am cump\u0103rat anul trecut l\u0103di\u021ba asta<\/a> ( nu-i fac reclam\u0103, deja nu mai e la v\u00e2nzare) cu un singur scop. <\/p>\n\n\n\n

S\u0103 \u00eemi aduc din Rom\u00e2nia \u00een UK, c\u00e2nd am venit cu rableta, carne din curtea altor mei, congelat\u0103, ca orice rom\u00e2n. <\/p>\n\n\n\n

Spre deosebire de orice rom\u00e2n, care care car\u0103 porci in portbagaje \u0219i pe avion, eu sunt cu ra\u021bele. Ra\u021ba pe varz\u0103, iubirea mea. Fac \u0219i cu ce g\u0103sesc \u00een UK, dar nu e, b\u0103i. NU.E. <\/p>\n\n\n\n

Cutia asta are 27 de litri pe din\u0103untru,dar, dac\u0103 mai pui ni\u0219te pastile de r\u0103cire r\u0103m\u00e2ne mai pu\u021bin. <\/p>\n\n\n\n

<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u00cen plus, de fapt vreau s\u0103 zic \u00een minus , <\/strong>deasupra e ventilatorul de la r\u0103citor \u0219i ocupa spatiu de a\u0219a manier\u0103 c\u0103 nu prea po\u021bi s\u0103 pui chestii pe l\u00e2ng\u0103, dec\u00e2t dac\u0103 ar fi sticle cu g\u00e2turile puse pe margini, sau dracu \u0219tie ce. Carevas\u0103zic\u0103 c\u0103 volumul utilizabil la combina\u021bia asta e undeva la 20 de litri utili, c\u0103 mai ai \u0219i goluri c\u00e2nd pui carne congelat\u0103. <\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Celula Peltier<\/strong> e un dispozitiv care exploateaz\u0103 efectul Peltier \u00een termocuple<\/a>, sau termocupluri – nu \u0219tiu cum se spune corect. <\/p>\n\n\n\n

Treci curent electric printr-o jonc\u021biune de dou\u0103 materiale \u0219i generezi c\u0103ldur\u0103 \u00eentr-un material , absorbind din cel\u0103lalt. In poza de mai sus ,pe partea din sus se genereaz\u0103 c\u0103ldur\u0103 , \u0219i se evacueaz\u0103 cu un ventilici, pe partea de jos se genereaz\u0103 frig ( adica de acolo se extrage c\u0103ldura, pentru pedan\u021bi). <\/p>\n\n\n\n

I se mai spune \u0219i pomp\u0103 de c\u0103ldur\u0103 termoelectric\u0103, sau frigider “solid state”, c\u0103 nu folose\u0219te circuite cu fluide. <\/p>\n\n\n\n

Am studiat efectul fugitiv \u00een facultate, dar nu am v\u0103zut vreodat\u0103 o aplica\u021bie practic\u0103 p\u00e2n\u0103 acum, de\u0219i nu-s noi. <\/p>\n\n\n\n

Ce vreau s\u0103 spun e c\u0103 asta nu e o lad\u0103 frigorific\u0103 pasiv\u0103, nici nu prea e posibil s\u0103 men\u021bii ceva congelat 72 de ore cu una din aia pasiv\u0103, dar nici nu e un frigider auto propriu-zis cu agen\u021bi de r\u0103cire, gen tetrafluor-etan , sau clor-difluor-metan ( R22). <\/p>\n\n\n\n

In teorie e mai eco \u0219i mai durabil in timp. In practic\u0103 durabilitatea a\u0219teptat\u0103 a unei l\u0103zi de 320 de lei e discutabil\u0103 \u0219i \u021bine p\u00e2n\u0103 c\u00e2nd se stric\u0103 una din componentele electrice sau ventilatorul. <\/p>\n\n\n\n

Partea proast\u0103 e c\u0103 COP ( coeficientul de performan\u021b\u0103) de r\u0103cire al celulei Peltier e inferior celui al r\u0103cirii cu fluide \u0219i, consider\u00e2nd dimensiunile \u0219i limit\u0103rile de curent, performan\u021ba e limitat\u0103. <\/p>\n\n\n\n

Declarativ, lada poate s\u0103 r\u0103ceasc\u0103 cu maxim 19 grade sub temperatura mediului \u0219i p\u00e2n\u0103 la -16 grade cred. Adic\u0103 dac\u0103 sunt 0 grade afar\u0103 tot va avea o limitare p\u00e2n\u0103 unde se poate duce pe minus. <\/p>\n\n\n\n

Ce ne intereseaz\u0103 de aici este c\u0103 pe timp de var\u0103 nu ai cum s\u0103 p\u0103strezi ceva congelat foarte mult timp \u00een lada asta. E ineficient\u0103. Sigur, e mai bine dec\u00e2t una pasiv\u0103, dar nu vei putea tine carne congelat\u0103 dac\u0103 temperatura ambiant\u0103 e de de 30 de grade. Sau 40. Po\u021bi \u021bine berea rece, po\u021bi \u021bine carnea rece p\u00e2n\u0103 s\u0103 o pui pe un gr\u0103tar la o ie\u0219ire, asta da. Dar vara, cam aici se limiteaz\u0103. <\/p>\n\n\n\n

De aia eu am plecat la final de octombrie , la temperaturi de 8-12 grade ( 20 \u00een ma\u0219in\u0103 c\u00e2nd conduceam ). Am plecat cu ea pe pasiv, seara, c\u0103ci carnea era congelat\u0103 bocn\u0103 la -18 grade. <\/p>\n\n\n\n

Am \u00eempachetat carnea pun\u00e2nd 2 pastile de r\u0103cire sus, una jos \u0219i ni\u0219te slan\u0103 \u0219i aceea congelat\u0103 tot sus – ca baterie termic\u0103, deoarece slana afumat\u0103 \u0219i op\u0103rit\u0103 cu usturoi, rezist\u0103 la decongelare mai bine dec\u00e2t carnea proasp\u0103t\u0103 congelat\u0103. <\/p>\n\n\n\n

Acas\u0103 am testat-o \u0219i minimul atins, la o temperatura de 10-12 grade afar\u0103 a fost -7 grade, goal\u0103. In poz\u0103 , -6 ,c\u00e2t a stat cel mai mult timp temperatura. Ceea ce ne duce cu g\u00e2ndul c\u0103 se apropie de specifica\u021bii, dar pe m\u0103sur\u0103 ce scade temperatura afar\u0103 nu mai coboar\u0103 la o diferen\u021b\u0103 at\u00e2t de mare, ceea ce nu ar trebui s\u0103 fie o problem\u0103. <\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Noaptea, la Arad au fost temperaturi de 4-5 grade \u0219i nu a fost problem\u0103. <\/p>\n\n\n\n

Diminea\u021ba, in partea de sus , unde e senzorul, m\u0103sura 3 grade. Am plecat cu rabla, am pornit-o \u0219i pornit\u0103 a stat c\u00e2t a mers rabla. S\u0103 men\u021binut la -0.3 C in partea de sus p\u00e2n\u0103 seara. Seara am l\u0103sat-o \u00eenchis\u0103, temperaturi de 10 grade noaptea \u00een Germania. Diminea\u021ba termometrul indica 4 grade sus. Am pornit-o din nou, s-a men\u021binut la -0.6 grade. Noaptea a fost mai frig in Belgia ( 4-5 grade), dar tot am g\u0103sit 4 grade diminea\u021ba. <\/p>\n\n\n\n

Seara am ajuns in UK \u0219i am constatat urm\u0103toarele:<\/p>\n\n\n\n

Temperatura pe senzor era 0.5 grade. Pentru c\u0103 \u00een ma\u0219in\u0103 erau circa 20 \u0219i nu mai putea raci sub, b\u0103nuiesc , sau ceva de genul.<\/p>\n\n\n\n

Slana era decongelat\u0103, la fel \u0219i partea de sus a primelor buc\u0103\u021bi de carne, care au intrat \u00eenspre g\u0103tit primele . <\/p>\n\n\n\n

Restul c\u0103rnii era \u00eenc\u0103 congelat\u0103. <\/p>\n\n\n\n

P\u0103rerea mea e in dubiu. Pentru suma pl\u0103tit\u0103 e o juc\u0103rie util\u0103. Dac\u0103 vrei s\u0103 \u00ee\u021bi mu\u021bi porcul \u00een mod profesionist in UK, sau vrei un frigider de camping cinstit, trebuie unul cu compresor, care e la al\u021bi bani! <\/p>\n\n\n\n

Ceva de genul \u0103sta<\/a>.<\/p>\n\n\n\n

Nu musai \u0103sta, nu \u0219tiu nimic despre el, nu e cu profitshare \u0219i nu fac reclam\u0103, zic de felul \u0103sta. <\/p>\n","protected":false},"excerpt":{"rendered":"

Am cump\u0103rat anul trecut l\u0103di\u021ba asta ( nu-i fac reclam\u0103, deja nu mai e la v\u00e2nzare) cu un singur scop. S\u0103 \u00eemi aduc din Rom\u00e2nia…<\/p>\n","protected":false},"author":2,"featured_media":23953,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_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}},"categories":[952,1973,1594],"tags":[5232,5230,5231],"class_list":["post-23954","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-review","category-road-trip","category-uk","tag-cum-c-cari-porcul-in-uk","tag-lada-frigorifica-auto-cu-celula-peltier","tag-lada-peme-eficienta"],"views":1446,"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/catalinx.ro\/wordpress\/wp-content\/uploads\/2023\/01\/Screenshot_20230128-18471185328129.jpg","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p4Eq23-6em","jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/catalinx.ro\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/23954","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=23954"}],"version-history":[{"count":8,"href":"https:\/\/catalinx.ro\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/23954\/revisions"}],"predecessor-version":[{"id":23989,"href":"https:\/\/catalinx.ro\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/23954\/revisions\/23989"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/catalinx.ro\/wordpress\/index.php?rest_route=\/wp\/v2\/media\/23953"}],"wp:attachment":[{"href":"https:\/\/catalinx.ro\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=23954"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/catalinx.ro\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=23954"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/catalinx.ro\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=23954"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}