**猜的**
W/(m2 K )=J/(s m2 K )
=> [3000 (J/kg K)]*[1 (kg/s)]*[(80-60) (℃)/40 (℃)]/[1.5 (m2)] =3000*1*0.5/1.5 (J/s m2 K) =1000 (m2 K )
33.一已知熱傳面積為 1.5m2的雙套管熱交換器,以冷卻水逆向流動冷卻潤滑油 ..-阿摩線上測驗