... 11.14 and 11.15 where ∆T1 = Th,i - Tc,o = 80 °C and ∆T2 = Th,o - Tc,i = 120°C Hence, ∆T1m = (120 80 )°C/ln(120 /80 ) = 98. 7°C and L= q 3000 W = = 0.9 68 m (π D ) U∆T1m (π × 0.02 m ) 500 W m2⋅ K × 98. 7 ... Cmin/Cmax = (5,000 × 41 78) /(10,000 × 4 188 ) = 0.499 Combining Eqs (1) and (2), find Th,o = 80 °C − 0.7 × 3 48. 2 × 103 W / (10,000/3600 ) k g / s × 4 188 J / k g ⋅ K ( Th,o = ( 80 − 21.0 ) ° C = 59°C ... Overall heat transfer coefficient, U, for the HXer, outlet temperature of cooling water, Tc,o, and condensation rate of the steam m h ; and (b) Compute and plot Tc,o and m h as a function of the...