...One of the newest applications is the seawater desalinization technology known as reverse osmosis, which uses semipermeable membranes made of cellulose acetate or aromatic polyamide. There is also a special type of tube called a heat pipe. This is a metal tube made of aluminum, copper, stainless steel, etc. that contains a heat medium (such as fluorocarbons or ammonia) that has a large heat of vaporization and a high vapor diffusion rate, and the tube as a whole becomes an object with a very large thermal diffusion capacity (a thousand and several hundred times that of copper). ... *Some of the terminology that mentions "heat pipe" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…アセチルセルロースや芳香族ポリアミドなどの半透膜を利用した逆浸透法と呼ばれる海水淡水化技術などは,その最も新しい応用例の一つである。また,ヒートパイプheat pipeと呼ばれる特殊な管もある。これはアルミニウム,銅,ステンレスなどの金属管の中に,大きな気化熱をもち,しかもその蒸気の拡散速度の大きな熱媒体(フロン,アンモニアなど)を閉じ込めたもので,この管は全体として非常に大きな熱拡散能(銅の千数百倍)をもつ物体となる。… ※「heat pipe」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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