Q1 A company reviewed its energy demands and the method used to meet such demands. The review showed that heating demand of 1740 kW and cooling demand of 1280 kW are required to bring the streams shown in the following table to their required temperatures. Table Q1 Streams temperatures and thermal capacity. Stream 1 2 3 4 (i) (ii) Thermal Capacity | Initial (kW/K) Final temperature temperature (C) (C) 2 200 30 4 400 50 3 30 300 30 500 Using the Pinch methodology and minimum temperature difference of 20 K, determine the minimum external heating and cooling demands and the Pinch temperature. [120kW, 580kW, 400 C, 380 C] An Engineer proposed the following heat recovery system, determine the heat transfer capacity of the external heater (H), the external coolers (C1 and C2) and the three heat exchangers HE1, HE2 and HE3 ensuring the design follows the Pinch rules. [120kW, 190kW, 390kW, 150kW, 200kW, 810kW] Above the pinch 12 24 33 4 41 1 I 500 H H Below the pinch 200 C1 34 30 400 400 HE1 50 300 HE3 30 380 HE+ 380 30 Figure Q1 Proposed Design.