1. The temperature interval diagram for a process is shown below. For this process, do the following: Stream 1 2 3 4 5 6 HCFR (kW/C) 1.0 ? 3.0 5.0 ? 4.0 EHCFR AT (kW) 600 (C) 580 (C) 400 A 500 (C) 480 (C) B ? 2 3 400 (C) 380 (C) -600 300 (C) 280 (C) D 300 200 (C) 180 (C) 5 E ? 100 (C) 80 (C) 6 d. Calculate the minimum number of exchangers needed for the minimum energy case, for above and below the pinch. e. Draw the heat exchanger network for the process. f. Calculate the % savings for hot and cold utilities