Required information Hot water (Cph = 4188 J/kg-K) with mass flow rate of 2.5 kg/s at 100C enters a thin-walled concentric tube counter-flow heat exchanger with a surface area of 28.5 m and an overall heat transfer coefficient of 1000 W/m.K. Cold water (Cpc = 4178 J/kg-K) with mass flow rate of 5 kg/s enters the heat exchanger at 20C. Use the table given below to find the effectiveness. Heat exchanger type 1 Double pipe: Parallel-flow Effectiveness relation Counter-flow 8- 2 Shell-and-tube: One-shell pass 2,4,...tube passes n-shell passes 2n, 4n,... tube passes 3 Cross-flow (single-pass) Both fluids unmixed Cmax mixed, Cmin unmixed Cmin mixed, Cmax unmixed 8- 1 - exp [-NTU(1 + c )] 1+ C 1 - exp [-NTU(1 - c)] 1 - c exp [-NTU(1 - c)]) NTU 1 + NTU (for c = 1) (for c < 1) -1 1+ exp-NTU, VI + c 1-21+c+V1 + c. 1- exp -NTU, V1+ c - 1 NTU0.22 E=1 - exp C [exp (-CNTU0.78) - 11} E = (1- exp (-c11-exp (NTU)]}) - exp { - ex - exp (c NTU) NTU)} 4 All heat exchangers & -1- exp(-NTU) with c-0 Determine the outlet temperature of the cold fluid, if the heat transfer rate for the heat exchanger is 7.14 x 105 W. (Round the answer to two decimal places.) The outlet temperature of the cold fluid is 1C.