CME 1025 - Principles of Chemical Engineering Resit Assignment The resit case study is an INDIVIDUAL REPORT. ELECTRONIC SUBMISSION ONLY via Canvas until Any reports not following the submission format and

guidelines below will not be marked! A double-effect evaporator (two evaporators in series) is used to produce fresh water from seawater containing 3.5 wt% dissolved salts. A flowchart for the process is shown here. H₂O(V) P=0.6 bar H₂O(v) Saturated 4 bar Seawater, 300 K 3.5 wt% salt, 5000 kg/h P=0.2 bar Brine 5.5 wt% salt H₂0(1) sat'd, 4 bar H₂O(v) H₂O(l) sat'd, 0.6 bar Newcastle University Brine Condenser Fresh water product Seawater enters the first effect at 300 K at a rate of 5000 kg/h, and saturated steam at 4.00 bar absolute is fed into a tube bundle in the first effect. The steam condenses at 4.00 bar, and the condensate is withdrawn at the saturation temperature corresponding to this pressure. The heat given up by the steam condensing in the tubes causes water to evaporate from the brine solution at the pressure of 0.60 bar maintained in the effect. The exiting brine contains 5.5 wt% salt. The steam generated in the first effect is fed to a tube bundle in the second effect. The condensate from the bundle and the steam generated in the second effect at a pressure of 0.20 bar constitute the fresh water produced in the process. In solving the problems to be given, assume that the brine solutions in/nboth effects have the physical properties of pure water and that the effects operate adiabatically. Your report should contain at least the following: 1) Detailed mass and energy balances for the process, with calculations in an appendix. 2) Presentation of flow sheet software results, comparison with manual calculations with discussion (submit your Aspen Hysis file aside). 3) An assessment of the sustainability of this process (0.5-1 page Newcastle University guidance); 4) A safety assessment of the process, highlighting major hazards and measures that could be taken to minimize these hazards (0.5-1 page guidance); one of the 5) Description of the materials selection process t evaporators (0.5-1 page guidance). Report Format and Submission Guidelines: • 6 sides of A4 Maximum, plus appendices; • 12 pt Times New Roman; • 2.5 cm margins around the entire document; • Title, student number and name must be on the front page; Match the sections of the report to the sections indicated above; • Good report writing guidelines (cf. CME1025) must be followed, i.e. use of significant figures, explicit use of variables, good presentation of graphs and tables, etc. Report Marking Scheme Mass and Energy balances Process simulation flow sheet software Health and Safety Assessment of the sustainability of the plant 15% Materials selection Marks and Feedback: Feedback will be given via CANVAS; The marks will be released via CANVAS. 25% 25% 20% 15% Ensure that you submit the correct files using the correct submission portal. It will not be possible to retrieve your files after submission, and you will only be allowed to submit once!