ans: Pinch T = 110C for the hot stream and 90C for the cold streams minimum hot utility is 155MW and the minimum cold utility is 20MW

For a process, the following streams must be cooled or heated: Using a minimum approach temperature of 20C : a) determine the temperature interval diagram, the pinch temperatures and the minimum hot and cold utilities b) determine the heat-exchange network below the pinch. Be sure to indicate values for intermediate stream temperatures and flowrates (CP) and exchanger duties