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19 .. 2008 22.24 .

͡÷Ӥ繷 Ͷ֧سԢͧٹͧó дѺ繤繷ͧժԵҧ ش͹ ҡҧ ͤ 觡Ҥա

6 觶¤͹ (Heat transfer)

觶¤͹ (Heat transfer)

                ͹ö͹ 3 ٻẺ ù þ Сѧ ĵԡҧ͹͹ҡس٧ѧسԵ ¡ҧ ǹӷչ Өس٧Ҩ֧෤͹价秷س繡 ش෤͹ѹسԷҡѹ

 

ù (Conduction)

                繡觶س·ǡҧѺ ¡ҧ ҨѺ˹ ǹӻ¢ͧ硹 ѡѡҷѺաҹ֧֡͹ ͵ҧͧùӤ͹ ǡҧ 硷դ͹觼ҹ ǹҧ ùӤ͹ҹᾧҹ (ᾧ繵ǡҧ) ͹ҹѧ (ѧ繵ǡҧ) ͹ҹѧ (ѧ繵ǡҧ)

ǹѵҡùӤ͹ Ѻᵡҧͧس ФسѵԡùӤ͹ͧʴ

 

þ (Convection)

                繡觶س·ǡҧ͹仡ѺسԴ ¡ҧ ӷسżҹͫ觹Өз˹ҷ繵ǡҧҤ͹仡Ѻ͹仾ѹ

                ǹѵҡþҤ͹ Ѻᵡҧͧس ǢͧŢͧǡҧ ЪԴͧͧ

 

ѧ (Radiation)

                繡öسԷͧµǡҧ㹡͹ ¡ҧ ǧҷԵѧդ͹ҡǧҷԵѧš ͹͹ҹǡ ҹ鹺ҡȢͧš ҹҹ СҶ֧֡͹

                ѵ㹡ѧդ͹ ջҳҡ͹¢Ѻᵡҧͧس ҳسԷ͡ҡ觡Դ ǹӡººѺѵش (ѵشѵطҧشըԧš ǹմ 㹷ҧԷʵҴӨԧ)

                㹺ҧҨо ö෤͹ 3 Ẻѹ ¡ҧ 硷ͨѺ йաҹ˹

ù ͤ͹觼ҹ

þ Ѵҹ ͹ͧ硡

ǹѧ ͤ͹ͧ͡ҷ֡͹ ͧҡШ仡ѹҧҡѺ͹ ѧ֧֡͹ ͹Ҩҡ͹͹ҹ

ö෤͹кਹԡ سԷżҹ͡سԷ٭ 㹺dzͧѡسդҤ кਹԡس٭¹ ¡ҧ Ըحҡ (Vacuum jackets), лͧѹਹ (Nitrogen shields) ͡ҡѧԸŴ٭¢ͧسաԸ Ѻӹҭ лʺó ͧ黯Ժѵԧҹҹਹԡ

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