... 2) Ta cú: qtb1 = q11 + q21 30141, 12 + 29 123 , 82 = = 29 6 32, 47 2 qtb2 = q 12 + q 22 26648,06 + 25 354, 02 = = 26 001,04 2 (W/m2) K1 = qtb1 29 6 32, 47 = = 922 ,7 T1 32, 115 K2 = qtb 26 001,04 = = 8 52 ,4 T2 ... 0,314.8 ,28 2, 33.0,875 = 30 62, 08 (W/m3 ) 10.4.Nhit ti riờng v phớa dung dch : q21 = 21 . 21 = 4094,45.7,113 = 29 123 , 82 (W/m2) q 22 = 22 22 =30 62, 08.8 ,28 = 25 354, 02 (W/m2) 10.5.So sỏnh q2i v q1i ... W1 = 1 129 4, 12( 2 625 ,7 72. 10 31 02, 28.78,8766 ) + 16000( 31 02, 28.78,8766 3539,0537.111,605) 0,95 (26 92, 4995.10 4191,1.108,38) + (26 25,7 72. 10 3539,0537.111,605) =5 620 ,5 12 (kg/h) D= 5 620 ,5 12( 26 93,084...