D\u00f4vod, pre\u010do voda vrie pri teplote iba 10 \u00b0C 27 km nad zemsk\u00fdm povrchom, je n\u00edzky atmosf\u00e9rick\u00fd tlak v tejto nadmorskej v\u00fd\u0161ke. Vo vysok\u00fdch nadmorsk\u00fdch v\u00fd\u0161kach, napr\u00edklad v stratosf\u00e9re, je okolit\u00fd tlak extr\u00e9mne n\u00edzky. To ovplyv\u0148uje bod varu v\u0161etk\u00fdch kvapal\u00edn vr\u00e1tane vody. \u010c\u00edm ni\u017e\u0161\u00ed je tlak, t\u00fdm ni\u017e\u0161\u00ed je bod varu, \u010do umo\u017e\u0148uje vode vrie\u0165 pri ni\u017e\u0161\u00edch teplot\u00e1ch.<\/p>\n\n\n\n
Ako okolit\u00fd tlak ovplyv\u0148uje bod varu
Bod varu vody a in\u00fdch kvapal\u00edn priamo z\u00e1vis\u00ed od okolit\u00e9ho tlaku. Na hladine mora je atmosf\u00e9rick\u00fd tlak pribli\u017ene 1013 hPa a voda vrie pri 100 \u00b0C. Av\u0161ak s prib\u00fadaj\u00facim tempom do vy\u0161\u0161\u00edch nadmorsk\u00fdch v\u00fd\u0161ok tlak kles\u00e1 a bod varu kles\u00e1. V nadmorskej v\u00fd\u0161ke pribli\u017ene 27 km kles\u00e1 atmosf\u00e9rick\u00fd tlak na pribli\u017ene 26 hPa, \u010do sp\u00f4sobuje, \u017ee voda vrie pri iba 10 \u00b0C.<\/p>\n\n\n\n
Tento princ\u00edp je d\u00f4le\u017eit\u00fd nielen v pr\u00edrode, ale nach\u00e1dza uplatnenie aj v r\u00f4znych technol\u00f3gi\u00e1ch, ktor\u00e9 pracuj\u00fa s teplotou a tlakom, ako s\u00fa klimatiz\u00e1cie a tepeln\u00e9 \u010derpadl\u00e1.<\/p>\n\n\n\n
Aplik\u00e1cie princ\u00edpu v stroj\u00e1rstve<\/p>\n\n\n\n
V stroj\u00e1rstve sa tento fyzik\u00e1lny princ\u00edp pou\u017e\u00edva na efekt\u00edvne odparovanie chlad\u00edv v tepeln\u00fdch \u010derpadl\u00e1ch alebo klimatiz\u00e1ci\u00e1ch a prenos tepla. Ke\u010f je plynn\u00e9 chladivo stla\u010den\u00e9 na vysok\u00fd tlak, jeho bod varu st\u00fapne nad okolit\u00fa teplotu, \u010do sp\u00f4sob\u00ed jeho kondenz\u00e1ciu a uvo\u013enenie tepla. Potom prech\u00e1dza expanzn\u00fdm ventilom do n\u00edzkotlakovej z\u00f3ny, kde sa odparuje a absorbuje teplo.<\/p>\n\n\n\n
\u010co to m\u00e1 spolo\u010dn\u00e9 s receptami?<\/p>\n\n\n\n
Hoci sa tento fyzik\u00e1lny jav pou\u017e\u00edva v termodynamike a stroj\u00e1rstve, m\u00f4\u017ee by\u0165 zauj\u00edmav\u00fd aj v kulin\u00e1rskej oblasti, najm\u00e4 pri pr\u00edprave jed\u00e1l, ktor\u00e9 vy\u017eaduj\u00fa regul\u00e1ciu tlaku a teploty. Jedn\u00fdm z pr\u00edkladov je varenie sous vide, zn\u00e1me aj ako v\u00e1kuov\u00e9 varenie. T\u00e1to technika vyu\u017e\u00edva podobn\u00e9 princ\u00edpy na varenie potrav\u00edn pri ni\u017e\u0161\u00edch teplot\u00e1ch a z\u00e1rove\u0148 zachovanie ich chuti.<\/p>\n\n\n\n
D\u00f4le\u017eitos\u0165 tlaku pri varen\u00ed<\/p>\n\n\n\n
Pr\u00edkladom praktick\u00e9ho uplatnenia tohto princ\u00edpu tlaku pri varen\u00ed je proces varenia sous vide, pri ktorom sa jedlo var\u00ed vo v\u00e1kuovo uzavretom vrecku pri konzistentne n\u00edzkych teplot\u00e1ch. Tento proces vyu\u017e\u00edva ni\u017e\u0161\u00ed tlak ako konven\u010dn\u00e9 met\u00f3dy a umo\u017e\u0148uje presn\u00fa kontrolu bodu varu tekut\u00edn. V\u00fdsledkom s\u00fa \u0161\u0165avnatej\u0161ie a m\u00e4k\u0161ie pokrmy pri pr\u00edprave m\u00e4sa, zeleniny a in\u00fdch potrav\u00edn.<\/p>\n\n\n\n
Zauj\u00edmav\u00e9 fakty a \u010fal\u0161ie aplik\u00e1cie<\/p>\n\n\n\n
Pou\u017eitie tlaku a teploty m\u00e1 \u010falekosiahle d\u00f4sledky pre gastron\u00f3miu a v\u00fdvoj nov\u00fdch techn\u00edk varenia. V kombin\u00e1cii s modern\u00fdm vybaven\u00edm a strojmi, ako s\u00fa tlakov\u00e9 hrnce alebo \u0161pecializovan\u00e9 parn\u00e9 hrnce, m\u00f4\u017eu kuch\u00e1ri presne nastavi\u0165 bod varu tekut\u00edn, aby optimalizovali chute a text\u00fary jed\u00e1l.<\/p>\n\n\n\n
Z\u00edskajte viac inform\u00e1ci\u00ed o t\u00fdchto inovat\u00edvnych technik\u00e1ch varenia a objavte, ako ich aplikova\u0165 vo svojej kuchyni. Ak sa chcete dozvedie\u0165 viac o modern\u00fdch met\u00f3dach varenia a zauj\u00edmav\u00fdch receptoch, prihl\u00e1ste sa na odber na\u0161ej str\u00e1nky a zdie\u013eajte tieto \u010dl\u00e1nky so svojimi priate\u013emi.<\/p>\n","protected":false},"excerpt":{"rendered":"
D\u00f4vod, pre\u010do voda vrie pri teplote iba 10 \u00b0C 27 km nad zemsk\u00fdm povrchom, je n\u00edzky atmosf\u00e9rick\u00fd tlak v tejto nadmorskej v\u00fd\u0161ke. Vo vysok\u00fdch nadmorsk\u00fdch v\u00fd\u0161kach, napr\u00edklad v stratosf\u00e9re, je […]<\/p>\n","protected":false},"author":2,"featured_media":67,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-66","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-zivotne-triky"],"_links":{"self":[{"href":"https:\/\/www.sk-babickinerady.top\/index.php?rest_route=\/wp\/v2\/posts\/66"}],"collection":[{"href":"https:\/\/www.sk-babickinerady.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sk-babickinerady.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sk-babickinerady.top\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sk-babickinerady.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=66"}],"version-history":[{"count":1,"href":"https:\/\/www.sk-babickinerady.top\/index.php?rest_route=\/wp\/v2\/posts\/66\/revisions"}],"predecessor-version":[{"id":68,"href":"https:\/\/www.sk-babickinerady.top\/index.php?rest_route=\/wp\/v2\/posts\/66\/revisions\/68"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.sk-babickinerady.top\/index.php?rest_route=\/wp\/v2\/media\/67"}],"wp:attachment":[{"href":"https:\/\/www.sk-babickinerady.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=66"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sk-babickinerady.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=66"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sk-babickinerady.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=66"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}