{"id":1648,"date":"2018-07-04T00:00:00","date_gmt":"2018-07-03T22:00:00","guid":{"rendered":"http:\/\/martyho.net\/index.php\/2018\/07\/04\/koncentracni-ohrivac-vody\/"},"modified":"2023-08-07T08:10:47","modified_gmt":"2023-08-07T06:10:47","slug":"koncentracni-ohrivac-vody","status":"publish","type":"post","link":"https:\/\/martyho.net\/index.php\/2018\/07\/04\/koncentracni-ohrivac-vody\/","title":{"rendered":"Koncentra\u010dn\u00ed oh\u0159\u00edva\u010d vody"},"content":{"rendered":"<p>M\u016fj prvn\u00ed pokus jak (a jestli v\u016fbec) d\u011blat koncentra\u010dn\u00ed sol\u00e1rn\u00ed oh\u0159ev vody. Zat\u00edm m\u00e1m jen parabolu a stojan, zkusil jsem nam\u00ed\u0159it na slunce a na d\u0159\u00edvko d\u00e1t do ohniska 1\/4 A4 pap\u00edru, abych se mrknul na pr\u016fm\u011br ohniska. Sta\u010dilo cca 10-15s aby pap\u00edr sho\u0159el a bukov\u00e9 d\u0159evo se za\u010dalo p\u00e1lit. V tu dobu ukazovala meteostanice osvit kolem 720W\/m2 (nebylo \u00fapln\u011b jasno), parabola m\u00e1 pr\u016fm\u011br cca 55cm, plocha zrc\u00e1tek (583ks 2x2cm) odpov\u00edd\u00e1 cca 0,233 m2, co\u017e d\u011bl\u00e1 cca 168W na ohnisko s pr\u016fm\u011brem kolem 2-4 cm. V ohnisku pl\u00e1nuju m\u011bd\u011bnou v\u00e1lcovou n\u00e1dobku o pr\u016fm\u011bru 35mm a v\u00fd\u0161ce cca 5cm, napojenou m\u011bd\u011bn\u00fdmi trubkami na &#8222;minibojler&#8220; za satelitem o objemu kolem 1-2L tak, aby v tom (otev\u0159en\u00e9m) okruhu fungovala samot\u00ed\u017e. Pak se bude d\u00e1t zm\u011b\u0159it skute\u010dn\u00fd v\u00fdkon dle toho, jak to oh\u0159eje ten objem vody. Kdy\u017e jsem do osy paraboly um\u00edstil m\u011bd\u011bnou trubku (pr\u00e1zdnou, bez chlad\u00edc\u00ed kapaliny) o pr\u016fm\u011bru 14mm, v oblasti ohniska se zah\u0159\u00e1la na 254 stC.<br \/>\n<a href=\"https:\/\/martyho.net\/blog_gallery\/350_parabola\/IMG_20180701_171034.jpg\" target=\"_blank\" rel=\"noopener noreferrer\"><img decoding=\"async\" src=\"https:\/\/martyho.net\/blog_gallery\/350_parabola\/IMG_20180701_171034_.jpg\"><\/a> <a href=\"https:\/\/martyho.net\/blog_gallery\/350_parabola\/IMG_20180701_170954.jpg\" target=\"_blank\" rel=\"noopener noreferrer\"><img decoding=\"async\" src=\"https:\/\/martyho.net\/blog_gallery\/350_parabola\/IMG_20180701_170954_.jpg\"><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>M\u016fj prvn\u00ed pokus jak (a jestli v\u016fbec) d\u011blat koncentra\u010dn\u00ed sol\u00e1rn\u00ed oh\u0159ev vody. Zat\u00edm m\u00e1m jen parabolu a stojan, zkusil jsem nam\u00ed\u0159it na slunce a na d\u0159\u00edvko d\u00e1t do ohniska 1\/4 A4 pap\u00edru, abych se mrknul na pr\u016fm\u011br ohniska. Sta\u010dilo cca 10-15s aby pap\u00edr sho\u0159el a bukov\u00e9 d\u0159evo se za\u010dalo p\u00e1lit. V tu dobu ukazovala meteostanice &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/martyho.net\/index.php\/2018\/07\/04\/koncentracni-ohrivac-vody\/\" class=\"more-link\">Pokra\u010dovat ve \u010dten\u00ed<span class=\"screen-reader-text\"> &#8222;Koncentra\u010dn\u00ed oh\u0159\u00edva\u010d vody&#8220;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,62],"tags":[14],"_links":{"self":[{"href":"https:\/\/martyho.net\/index.php\/wp-json\/wp\/v2\/posts\/1648"}],"collection":[{"href":"https:\/\/martyho.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/martyho.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/martyho.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/martyho.net\/index.php\/wp-json\/wp\/v2\/comments?post=1648"}],"version-history":[{"count":3,"href":"https:\/\/martyho.net\/index.php\/wp-json\/wp\/v2\/posts\/1648\/revisions"}],"predecessor-version":[{"id":3697,"href":"https:\/\/martyho.net\/index.php\/wp-json\/wp\/v2\/posts\/1648\/revisions\/3697"}],"wp:attachment":[{"href":"https:\/\/martyho.net\/index.php\/wp-json\/wp\/v2\/media?parent=1648"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/martyho.net\/index.php\/wp-json\/wp\/v2\/categories?post=1648"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/martyho.net\/index.php\/wp-json\/wp\/v2\/tags?post=1648"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}