Aprocess that is being considered for construction has been through several technical reviews; block flow, process flow, and piping and instrumentation diagrams are available for the process. explain the changes that would have to be made to the three principal diagrams if during a final preconstruction review, the following changes were made a. the area of a filter press had been specified incorrectly as 300 m instead of 350 m b. the cooling water flowrate needed for a heat exchanger was calculated incorrectly and is now 50% greater than before. c. several globe valves have been added to the plant to allow for manual regulation of flowrates. d. the cooling loop for a reactor has been rerouted (through one additional heat exchanger and one cooler) to improve process heat integration e. there is a change in the control strategy for a distillation tower bottom level. it has been decided that the level of the distillation tower will be controlled by regulating an existing control valve at the feed line to the tower rather than the tower bottom outlet flowrate.