{"id":339450,"date":"2024-06-19T22:37:25","date_gmt":"2024-06-19T21:37:25","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/%ec%97%b4%ec%a0%84%eb%8b%ac%ec%9d%84-%ec%9c%84%ed%95%9c-%ec%84%b8-%ea%b0%80%ec%a7%80-%ec%a2%85%eb%a5%98%ec%9d%98-%ec%97%b4%eb%b3%b5%ec%82%ac\/"},"modified":"2024-06-19T22:37:25","modified_gmt":"2024-06-19T21:37:25","slug":"%ec%97%b4%ec%a0%84%eb%8b%ac%ec%9d%84-%ec%9c%84%ed%95%9c-%ec%84%b8-%ea%b0%80%ec%a7%80-%ec%a2%85%eb%a5%98%ec%9d%98-%ec%97%b4%eb%b3%b5%ec%82%ac","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/ko\/%ec%97%b4%ec%a0%84%eb%8b%ac%ec%9d%84-%ec%9c%84%ed%95%9c-%ec%84%b8-%ea%b0%80%ec%a7%80-%ec%a2%85%eb%a5%98%ec%9d%98-%ec%97%b4%eb%b3%b5%ec%82%ac\/","title":{"rendered":"\uc5f4\uc804\ub2ec\uc744 \uc704\ud55c \uc138 \uac00\uc9c0 \uc885\ub958\uc758 \uc5f4\ubcf5\uc0ac"},"content":{"rendered":"

\uc5f4\uc804\ub2ec \ubc29\ubc95 \uc911 \ud558\ub098\uc778 \uc5f4\ubcf5\uc0ac\ub294 \ubb3c\uccb4\uac00 \uc804\uc790\uae30\ud30c \ud615\ud0dc\ub85c \uc5f4\uc5d0\ub108\uc9c0\ub97c \ubc29\ucd9c\ud558\uc5ec \ub9e4\uac1c\uccb4 \uc5c6\uc774\ub3c4 \uc5d0\ub108\uc9c0\ub97c \uc804\ub2ec\ud558\ub294 \ud604\uc0c1\uc785\ub2c8\ub2e4.<\/p>\n

\"\uc5f4\uc804\ub2ec\uc744<\/p>\n

\uc5f4\uc804\ub2ec\uc744 \uc704\ud55c \uc138 \uac00\uc9c0 \uc885\ub958\uc758 \uc5f4\ubcf5\uc0ac<\/h2>\n

\uc5f4\uc804\ub2ec\uc740 \uc5d0\ub108\uc9c0\uac00 \ub192\uc740 \uc628\ub3c4 \uc601\uc5ed\uc5d0\uc11c \ub0ae\uc740 \uc628\ub3c4 \uc601\uc5ed\uc73c\ub85c \uc774\ub3d9\ud558\ub294 \uacfc\uc815\uc785\ub2c8\ub2e4. \uc5f4\uc804\ub2ec\uc5d0\ub294 \uc138 \uac00\uc9c0 \uc8fc\uc694 \ubc29\ubc95\uc774 \uc788\uc73c\uba70, \uadf8\uc911 \ud558\ub098\ub294 \uc5f4\ubcf5\uc0ac\uc785\ub2c8\ub2e4. \uc5f4\ubcf5\uc0ac\ub294 \ubb3c\uccb4\uac00 \uac00\uc9c4 \uc5f4\uc5d0\ub108\uc9c0\uac00 \uc804\uc790\uae30\ud30c \ud615\ud0dc\ub85c \ubc29\ucd9c\ub418\ub294 \ud604\uc0c1\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4. \uc5f4\ubcf5\uc0ac\ub294 \uc804\ub3c4\ub85c\ub098 \ub300\ub958\uc640 \ub2ec\ub9ac, \ub9e4\uac1c\uccb4 \uc5c6\uc774\ub3c4 \uc5d0\ub108\uc9c0\ub97c \uc804\ub2ec\ud560 \uc218 \uc788\ub2e4\ub294 \ud2b9\uc9d5\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

1. \uc804\ub3c4 (Conduction)<\/h2>\n

\uc804\ub3c4\ub294 \uace0\uccb4 \ubb3c\uc9c8 \ub0b4\uc5d0\uc11c \uc5f4\uc774 \uc774\ub3d9\ud558\ub294 \ubc29\uc2dd\uc744 \ub9d0\ud569\ub2c8\ub2e4. \uc774\ub294 \uc8fc\ub85c \uc804\uc790\uc758 \uc774\ub3d9 \ub610\ub294 \uaca9\uc790\uc758 \uc9c4\ub3d9\uc744 \ud1b5\ud574 \uc77c\uc5b4\ub0a9\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uae08\uc18d \ub9c9\ub300\ub97c \ud55c\ucabd \ub05d\uc5d0\uc11c \uac00\uc5f4\ud558\uba74 \uc5f4\uc774 \ub9c9\ub300\uc758 \ub2e4\ub978 \ub05d\uc73c\ub85c \uc774\ub3d9\ud558\ub294 \ud604\uc0c1\uc774 \uc804\ub3c4\uc5d0 \ud574\ub2f9\ud569\ub2c8\ub2e4. \uc804\ub3c4 \uc5f4\uc804\ub2ec\uc740 \ub2e4\uc74c \uc218\uc2dd\uc744 \ud1b5\ud574 \uc815\uc758\ub429\ub2c8\ub2e4:<\/p>\n

Q = k \\(\\cdot\\) A \\(\\cdot\\) \\(\\frac{dT}{dx}\\)<\/p>\n

\uc5ec\uae30\uc11c Q\ub294 \uc5f4\uc804\ub3c4\ub7c9, k\ub294 \uc5f4\uc804\ub3c4\uc728, A\ub294 \ub2e8\uba74\uc801, \uadf8\ub9ac\uace0 \\(\\frac{dT}{dx}\\)\ub294 \uc628\ub3c4 \uad6c\ubc30\ub97c \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<\/p>\n

2. \ub300\ub958 (Convection)<\/h2>\n

\ub300\ub958\ub294 \uc720\uccb4(\uc561\uccb4\ub098 \uae30\uccb4)\uc5d0\uc11c \uc5f4\uc774 \uc774\ub3d9\ud558\ub294 \ubc29\uc2dd\uc785\ub2c8\ub2e4. \ub300\ub958\uc5d0\ub294 \uc790\uc5f0\ub300\ub958(\uc790\ubc1c\uc801\uc778 \ub300\ub958)\uc640 \uac15\uc81c\ub300\ub958(\ud38c\ud504\ub098 \ud32c \ub4f1\uc744 \uc774\uc6a9\ud55c \ub300\ub958) \ub450 \uac00\uc9c0 \uc720\ud615\uc774 \uc788\uc2b5\ub2c8\ub2e4. \ub300\ub958 \uc5f4\uc804\ub2ec\uc740 \uc885\uc885 \ub274\ud134 \ub0c9\uac01 \ubc95\uce59\uc744 \ud1b5\ud574 \uc124\uba85\ub429\ub2c8\ub2e4:<\/p>\n

Q = h \\(\\cdot\\) A \\(\\cdot\\) (T_surface – T_fluid)<\/p>\n

\uc5ec\uae30\uc11c Q\ub294 \ub300\ub958 \uc5f4\uc804\ub2ec\ub7c9, h\ub294 \ub300\ub958 \uc5f4\uc804\ub2ec \uacc4\uc218, A\ub294 \ud45c\uba74\uc801, T_surface\ub294 \ubb3c\uccb4 \ud45c\uba74 \uc628\ub3c4, T_fluid\ub294 \uc720\uccb4 \uc628\ub3c4\ub97c \uc758\ubbf8\ud569\ub2c8\ub2e4.<\/p>\n

3. \ubcf5\uc0ac (Radiation)<\/h2>\n

\ubcf5\uc0ac\ub294 \ubb3c\uccb4\uac00 \uc804\uc790\uae30\ud30c\ub97c \ud1b5\ud574 \uc5d0\ub108\uc9c0\ub97c \ubc29\ucd9c\ud558\ub294 \ud604\uc0c1\uc785\ub2c8\ub2e4. \uc5f4\ubcf5\uc0ac\ub294 \uc9c4\uacf5\uc5d0\uc11c\ub3c4 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc73c\uba70, \uc774\ub294 \uc804\ub3c4\ub098 \ub300\ub958\uc640 \ud070 \ucc28\uc774\uc810\uc744 \ubcf4\uc785\ub2c8\ub2e4. \ubaa8\ub4e0 \ubb3c\uccb4\ub294 \uc628\ub3c4\uc5d0 \ub530\ub77c \uc5f4\ubcf5\uc0ac\ub97c \uc77c\uc73c\ud0a4\uba70, \uc774\ub294 \uc2a4\ud14c\ud310-\ubcfc\uce20\ub9cc \ubc29\uc815\uc2dd\uc5d0 \uc758\ud574 \uc124\uba85\ub429\ub2c8\ub2e4:<\/p>\n

E = \\(\\sigma \\cdot \\epsilon \\cdot T^4\\)<\/p>\n

\uc5ec\uae30\uc11c E\ub294 \ubcf5\uc0ac \uc5d0\ub108\uc9c0, \\(\\sigma\\)\ub294 \uc2a4\ud14c\ud310-\ubcfc\uce20\ub9cc \uc0c1\uc218(\uc57d 5.67 \\(\\times\\) 10-8<\/sup> W\/m2<\/sup>K4<\/sup>), \\(\\epsilon\\)\ub294 \ubb3c\uccb4\uc758 \ubc29\uc0ac\uc728, T\ub294 \uc808\ub300 \uc628\ub3c4(K)\ub97c \uc758\ubbf8\ud569\ub2c8\ub2e4.<\/p>\n

\uc751\uc6a9 \uc608\uc2dc<\/h2>\n

\uc804\ub3c4, \ub300\ub958, \ubcf5\uc0ac\ub294 \ubaa8\ub450 \uc77c\uc0c1\uc0dd\ud65c\uacfc \uc0b0\uc5c5 \uc804\ubc18\uc5d0 \uac78\uccd0 \ub9e4\uc6b0 \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \ub0c4\ube44\ub85c \uc694\ub9ac\ud560 \ub54c, \ubd88\ub85c \uc778\ud574 \ub0c4\ube44 \ubc14\ub2e5\uc5d0\uc11c \uc5f4\uc774 \uc804\ub3c4\ub85c \uc774\ub3d9\ud558\uace0, \ub053\ub294 \ubb3c\uc740 \ub300\ub958\ub97c \ud1b5\ud574 \uc5f4\uc744 \ubd84\uc0b0\uc2dc\ud0b5\ub2c8\ub2e4. \uadf8\ub9ac\uace0 \uc804\uccb4 \uc2dc\uc2a4\ud15c\uc5d0\uc11c \ubc1c\uc0dd\ud55c \uc5f4\uc740 \uacf5\uae30 \uc911\uc73c\ub85c \ubcf5\uc0ac\ub97c \ud1b5\ud574 \ubc29\ucd9c\ub429\ub2c8\ub2e4.<\/p>\n

\uc774\ub807\ub4ef \uc5f4\uc804\ub2ec \uba54\ucee4\ub2c8\uc998\uc744 \uc774\ud574\ud558\uba74 \ub2e4\uc591\ud55c \uc2e4\uc0dd\ud65c \ubc0f \uc0b0\uc5c5 \uacf5\uc815\uc5d0\uc11c \ud6a8\uc728\uc801\uc778 \uc5d0\ub108\uc9c0 \uad00\ub9ac\ub97c \ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"

\uc5f4\uc804\ub2ec \ubc29\ubc95 \uc911 \ud558\ub098\uc778 \uc5f4\ubcf5\uc0ac\ub294 \ubb3c\uccb4\uac00 \uc804\uc790\uae30\ud30c \ud615\ud0dc\ub85c \uc5f4\uc5d0\ub108\uc9c0\ub97c \ubc29\ucd9c\ud558\uc5ec \ub9e4\uac1c\uccb4 \uc5c6\uc774\ub3c4 \uc5d0\ub108\uc9c0\ub97c \uc804\ub2ec\ud558\ub294 \ud604\uc0c1\uc785\ub2c8\ub2e4.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[124],"tags":[],"yoast_head":"\n\uc5f4\uc804\ub2ec\uc744 \uc704\ud55c \uc138 \uac00\uc9c0 \uc885\ub958\uc758 \uc5f4\ubcf5\uc0ac<\/title>\n<meta name=\"description\" content=\"\uc5f4\uc804\ub2ec \ubc29\ubc95 \uc911 \ud558\ub098\uc778 \uc5f4\ubcf5\uc0ac\ub294 \ubb3c\uccb4\uac00 \uc804\uc790\uae30\ud30c \ud615\ud0dc\ub85c \uc5f4\uc5d0\ub108\uc9c0\ub97c \ubc29\ucd9c\ud558\uc5ec \ub9e4\uac1c\uccb4 \uc5c6\uc774\ub3c4 \uc5d0\ub108\uc9c0\ub97c \uc804\ub2ec\ud558\ub294 \ud604\uc0c1\uc785\ub2c8\ub2e4.\" 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