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Unformatted text preview: 60 C But, ) 225 . 2 ( 00167 . 00167 . 60 1 . ) , ( erfc T T T t x T i s i = = = (Table 43) Therefore, s 7.4 = = = = ) /s m 10 7 . 1 ( ) 225 . 2 ( 4 m) 05 . ( ) 225 . 2 ( 4 225 . 2 2 2 5 2 2 2 2 x t t x The rate of heat transfer to the ice when steady operation conditions are reached can be determined by applying the thermal resistance network concept as W 28,990 = = = = + + = + + = = = = = = = = = C/W 0.00207 C ) 60 ( C/W 00207 . 00040 . 00167 . C/W ) m 2 )(1.2 ( 1 1 C/W 00040 . ) m 2 C)(1.2 W/m. (52 m 05 . C/W 00167 . ) m 2 C)(1.2 . W/m (250 1 1 o 1 2 2 , 1 , 2 , 2 2 2 , total conv wall conv total o conv wall i i conv R T T Q R R R R A h R kA L R A h R & R conv , i R wall R conv ,o T 1 T 2 454...
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 Fall '10
 Dr.DanielArenas
 Thermodynamics, Mass, Heat

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