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Как долго термос держит тепло

28.10.2018 Раздел: Разное Комментарии: (32) Размер текста: A+ / A-

Термосы, вне зависимости от их производителя и материалов, работают по единому принципу. Изначально термос – это усовершенствованный сосуд Дьюара, дополненный металлическим корпусом крышкой и пробкой. Приспособление состоит из внутренней колбы, куда наливается жидкость, и наружного сосуда, образующего корпус. Между стенками сосудов создано вакуумное пространство, благодаря которому содержимое остывает гораздо медленнее. Про вакуумное оборудование подробно можно узнать на http://www.zencoplasma.ru/catalog/vakuumnoe-oborud. Изобретение запатентовали в 1903 году, назвав его термосом, и после уже модифицировали и усовершенствовали. Вне зависимости от моделей работа термоса, должна быть одинаковой, при любых материалах.
Виды термосов и теплопроводность разных моделей
Все термосы условно делятся на экземпляры, созданные для жидкости, и для еды. Первые сделаны с узким горлышком, из которого удобно наливать напитки, а вторые характерны широким отверстием, для удобного наполнения термоса пищей, и последующего мытья.
Термосы для жидкости держат тепло дольше, ведь чем уже горлышко, тем медленнее содержимое будет остывать. Но многое зависит от материала колбы, поэтому покупка термоса должна быть определена тем, как и где вы собираетесь его использовать.
Колбы термосов бывают металлическими и стеклянными, отличаясь разной степенью теплопроводности.
Стеклянные – отличаются небольшой теплопроводностью, и если вы хотите сохранить тепло как можно дольше, то лучший термос будет тот, который обладает стеклянной колбой. Но эти термосы очень хрупки, поэтому пригодны только для домашнего использования, или просто в тех случаях, когда вы не подвергаете термос опасности.
Металлические – пригодные для любых условий, универсальные и прочные, но держать тепло они будут меньше, особенно в морозной окружающей среде. Зато они гораздо более распространены для повседневного использования. Если вы не решили, какой термос вам требуется, то покупая модель с металлической колбой, вы не прогадаете.
В среднем, любой термос должен выдерживать температуру порядка 8 часов. Есть особо прочные модели, которые способны выдерживать до 50 часов, а есть экземпляры, задерживающие температуру всего на 2 часа. Обычно каждая модель должна сопровождаться описанием, где подробно расписаны все технические характеристики.
Проверка качества термоса
После покупки термос требуется проверить, и сделать это достаточно просто. Необходимо остудить термос до комнатной температуры, и залить в него кипяток. Затем необходимо плотно закрыть пробку с крышкой и отслеживать температуру корпуса, которая должна остаться комнатной температуры. После, исходя из качественных характеристик, указанных в инструкции можно проследить, остается кипяток той температуры, которой должен, или нет. Ну и если заявленные технические характеристики не соответствуют реальности, то термос можно называть некачественным. Обычно производители термосов пишут, сколько их модели держат тепло, что позволяет проверить это на практике.

Как долго термос держит тепло Reviewed by Vash-Remontik.ru on . Термосы, вне зависимости от их производителя и материалов, работают по единому принципу. Изначально термос – это усовершенствованный сосуд Дьюара, дополненный м Термосы, вне зависимости от их производителя и материалов, работают по единому принципу. Изначально термос – это усовершенствованный сосуд Дьюара, дополненный м Rating: 0
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