[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.blokna.cz\/energeticka-ucinnost-v-praxi\/#Article","mainEntityOfPage":"https:\/\/www.blokna.cz\/energeticka-ucinnost-v-praxi\/","headline":"Energetick\u00e1 \u00fa\u010dinnost v praxi","name":"Energetick\u00e1 \u00fa\u010dinnost v praxi","description":"Ty tam jsou doby, kdy \u010dlov\u011bk k\u00a0mechanick\u00e9mu pohonu dok\u00e1zal vyu\u017e\u00edt jen svoji nebo zv\u00ed\u0159ec\u00ed s\u00edlu. Pozd\u011bji pomohl v\u00edtr a voda<span class=\"more-button\"><a href=\"https:\/\/www.blokna.cz\/energeticka-ucinnost-v-praxi\/\" class=\"more-link\">Pokra\u010dovat ve \u010dten\u00ed<span class=\"screen-reader-text\">Energetick\u00e1 \u00fa\u010dinnost v praxi<\/span><\/a><\/span>","datePublished":"2019-06-12","dateModified":"2023-05-04","author":{"@type":"Person","@id":"https:\/\/www.blokna.cz\/author\/#Person","name":"","url":"https:\/\/www.blokna.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/42264ea8f5170010011c6bbf811aa6c31c20ad3acf2a9bd21dca0746ea8c832a?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/42264ea8f5170010011c6bbf811aa6c31c20ad3acf2a9bd21dca0746ea8c832a?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"blokna.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.blokna.cz\/wp-content\/uploads\/img_a348869_w2666_t1563694622.jpg","url":"https:\/\/www.blokna.cz\/wp-content\/uploads\/img_a348869_w2666_t1563694622.jpg","height":0,"width":0},"url":"https:\/\/www.blokna.cz\/energeticka-ucinnost-v-praxi\/","about":["Technika\r"],"wordCount":554,"articleBody":"Ty tam jsou doby, kdy \u010dlov\u011bk k\u00a0mechanick\u00e9mu pohonu dok\u00e1zal vyu\u017e\u00edt jen svoji nebo zv\u00ed\u0159ec\u00ed s\u00edlu. Pozd\u011bji pomohl v\u00edtr a voda a pak se objevil parn\u00ed stroj a b\u011bhem historicky kr\u00e1tk\u00e9 doby n\u00e1sledovaly dal\u0161\u00ed technologie, kter\u00e9 n\u00e1m usnad\u0148uj\u00ed \u017eivot a kter\u00e9 pokl\u00e1d\u00e1me za naprostou samoz\u0159ejmost. Ale stejn\u011b jako \u010dlov\u011bk pot\u0159ebuje k\u00a0v\u00fddeji energie potravu, pot\u0159ebuje \u201ekrmit\u201c i stroj. Pom\u011br toho co stroj \u201esn\u00ed\u201c (p\u0159\u00edkon) a jakou energii vyd\u00e1 k\u00a0va\u0161emu u\u017eitku (v\u00fdkon), se naz\u00fdv\u00e1 energetick\u00e1 \u00fa\u010dinnost. Jak si tedy na\u0161i pomocn\u00edci v\u00a0tomto ohledu stoj\u00ed?Za\u010dn\u011bme v\u00a0gar\u00e1\u017ei. Pokud va\u0161eho \u010dty\u0159kolov\u00e9ho \u010di dvoukolov\u00e9ho mil\u00e1\u010dka poh\u00e1n\u00ed klasick\u00fd spalovac\u00ed motor, jak tomu doposud v\u00a0drtiv\u00e9 v\u011bt\u0161in\u011b b\u00fdv\u00e1, v\u011bzte, \u017ee dok\u00e1\u017ee vydat a\u017e 35% ze spot\u0159ebovan\u00e9 energie. Zd\u00e1 se v\u00e1m to m\u00e1lo? Uvid\u00edte, \u017ee to s\u00a0n\u00edm a\u017e zas tak \u0161patn\u00e9 nen\u00ed\u2026 L\u00e9pe jsou na tom elektromotory. Jednof\u00e1zov\u00fd elektrick\u00fd motor va\u0161\u00ed pra\u010dky vyprodukuje v\u00edc ne\u017e 50% sv\u00e9 spot\u0159eby. V\u00a0t\u00e9to kategorii hraje nepochybn\u011b zna\u010dnou roli konstrukce motoru, lze dos\u00e1hnout \u00fa\u010dinnosti p\u0159es 90%. Chcete- li pomocn\u00edka hodn\u011b kvalitn\u00edho, mus\u00edte s\u00e1hnout hloub\u011bji do kapsy. Vy\u0161\u0161\u00ed po\u0159izovac\u00ed n\u00e1klady by se v\u00e1m ale m\u011bly vr\u00e1tit \u00fasporami ve spot\u0159eb\u011b.A\u017e v\u00a0zim\u011b zatop\u00edte v\u00a0elektrick\u00e9m kotli nebo plynov\u00e9m kondenza\u010dn\u00edm kotli, tak\u00e9 v\u00e1m nemus\u00ed b\u00fdt l\u00edto \u201esp\u00e1len\u00e9\u201c energie. Vr\u00e1t\u00ed v\u00e1m ji toti\u017e v teple a\u017e 98%. N\u011bkte\u0159\u00ed v\u00fdrobci (kondenza\u010dn\u00edch kotl\u016f) dokonce uv\u00e1d\u011bj\u00ed \u00fadaj vy\u0161\u0161\u00ed, ne\u017e neuv\u011b\u0159iteln\u00fdch 100%, nebo\u0165 p\u0159i v\u00fdpo\u010dtu pou\u017eij\u00ed hodnotu v\u00fdh\u0159evnosti paliva, co\u017e je z\u00a0hlediska fyziky a v\u00a0neposledn\u00ed \u0159ad\u011b v\u016f\u010di z\u00e1kazn\u00edkovi nekorektn\u00ed a zav\u00e1d\u011bj\u00edc\u00ed. Na perpetuum mobile si lidstvo bude p\u0159ece jenom muset je\u0161t\u011b po\u010dkat a kdov\u00ed, zda se do\u010dk\u00e1\u2026Ale i tak se jedn\u00e1 o rekordmany.Jak je to se sv\u011btlem? Rozsv\u00edt\u00edte-li klasickou, Evropskou uni\u00ed zavr\u017eenou \u017e\u00e1rovku, sv\u00edt\u00ed zhruba p\u011bti procenty p\u0159\u00edkonu. Taky rekordman, ale smutn\u00fd. Zbytek spot\u0159ebovan\u00e9 elekt\u0159iny p\u0159em\u011bn\u00ed na teplo. Kdo nev\u011b\u0159\u00ed, a\u0165 si na sv\u00edt\u00edc\u00ed \u017e\u00e1rovku s\u00e1hne, ale pozor, hroz\u00ed pop\u00e1len\u00ed. O mnoho l\u00e9pe je na tom z\u00e1\u0159ivka. Ur\u010dit\u00fd typ dokonce p\u0159ed\u010d\u00ed osv\u011btlovac\u00ed t\u011bleso typu LED. Z\u00e1\u0159ivka ve sv\u011btlo p\u0159em\u011bn\u00ed 20 i v\u00edce procent energie a ve srovn\u00e1n\u00ed s\u00a0klasickou \u017e\u00e1rovkou se zah\u0159\u00edv\u00e1 podstatn\u011b m\u00e9n\u011b. Probl\u00e9mem u levn\u011bj\u0161\u00edch typ\u016f je doprovodn\u00e9 UV z\u00e1\u0159en\u00ed, kter\u00e9 m\u016f\u017ee b\u00fdt vin\u00edkem nevratn\u00e9ho po\u0161kozen\u00ed zraku.Sv\u00e9 m\u00edsto v\u00a0tomto p\u0159ehledu m\u00e1 po z\u00e1sluze pohon na p\u00e1ru. \u017de parn\u00edmu stroji odzvonilo? Zdaleka ne, p\u0159\u00edkladem jsou nad\u0161enci udr\u017euj\u00edc\u00ed a provozuj\u00edc\u00ed parn\u00ed lokomotivy, slou\u017e\u00edc\u00ed jako turistick\u00e1 atrakce. Tyto \u017eelezn\u00e9 \u010dmoud\u00edc\u00ed prababi\u010dky na kolej\u00edch \u017eene vp\u0159ed stroj, kter\u00fd p\u0159em\u011bn\u00ed p\u00e1ru a\u017e na 15% mechanick\u00e9 energie. Tak se nezapome\u0148te sv\u00e9zt. \u00a0                                                                                                                                                                                                                                                                                                                                                                                        4.6\/5 - (16 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Energetick\u00e1 \u00fa\u010dinnost v praxi","item":"https:\/\/www.blokna.cz\/energeticka-ucinnost-v-praxi\/#breadcrumbitem"}]}]