Swansea University Prifysgol Abertawe EG-208 Process Design and Simulation Assignment 1 (25%): Pinch Analysis EG-208 is a continually assessment module. This assignment will contribute 25% towards module grade. your overall The aim of this assignment is for you to demonstrate the following: ● Your ability to apply the Pinch Analysis Technique using EXCEL to identify the pinch temperature and the potential maximum heat recovery that could be achieved. • • Your ability to design a Heat Exchanger Network that identifies which streams could potentially be used to achieve the identified maximum heat recovery. Your understanding of practical considerations that need to be made when trying to actually implement the proposed heat exchanger network design, as well the importance of Pinch Analysis as a tool for Chemical Engineers. Submission Guidance Your submission will comprise of two files as described below: File 1. A spreadsheet containing the Pinch Analysis calculations, related charts and the heat exchanger network diagram you have developed to answer Part A. File 2. A PDF file which contains the following. • • A section that contains a summary that the data generated in the Excel File against the criteria outlined in Part A. This summary should be presented in the same manner as shown in the solution document provided in Week 20 for the Class Exercise. (https://canvas.swansea.ac.uk/courses/45029/pages/pinch-technology-exercise- answers?module item id=2541658) A section that contains your written discussion that answers Part B of the of the Assignment. Each file will have its own Canvas Submission point. You only be allowed to make 1 submission for each file. Please ensure you submit the final version of your files, and to the correct submission point. For each file, please use your student number as the file name. Once you have made your submission, go back into the submission links and check that the correct files have been submitted. Please be aware when viewing your spreadsheet file using the preview function in Canvas, you may find the formatting appears incorrect. Download the file to check that it is correct. 1 Please note: Zero tolerance for late submission applies. Academic Misconduct This is an individual assessment; working in groups, helping or receiving help from other students or third parties is not permitted. The spreadsheet for part A which contains your pinch analysis must be your own work and generated by you from first principles. The University regulations regarding academic misconduct apply. For further information regarding Academic Misconduct please use the following link: Academic Misconduct Procedure Be wary of using Al Tools to develop your answers to this assignment. Please speak with Dr Richard Butterfield for further guidance on this matter. Further guidance can be found here: Artificial Intelligence Guidance - Swansea University 2 Part A: Pinch Analysis (30 Marks) The data provided Table 1 lists streams that have been identified as suitable for heat exchange recovery. Table 1: Details of Hot and Cold Streams to be used in the Pinch Analysis Heat Capacity Flowrate CP(kW/K) Initial Temp Ts(°C) Final Temp T+(°C) Cold Stream 1 60 30 180 Cold Stream 2 20 80 160 Cold Stream 3 10 80 160 Hot Stream 4 40 180 40 Hot Stream 5 30 150 60 Hot Stream 6 15 210 80 Based on the assumption that you must maintain a minimum temperature difference of 20°C, and achieve maximum heat recovery, develop an EXCEL spreadsheet to apply the pinch technology techniques and produce the following: • The "Composite Curves" for the hot and cold streams. • The "Shifted Composite Curves" for the hot and cold streams. • The "Problem Table" and "Infeasible & Feasible Heat Cascades" for this analysis. • The "Grand Composite" curve for this process. • Clearly identify the minimum hot & cold utilities required for this process. • Clearly identify the pinch temperature for this process. Your design of a heat exchanger network compliant with maximum heat recovery. The network diagram should clearly show which streams are interchanging heat, the magnitude of the heat being exchanged, and the inlet & outlet temperatures of the streams passing through the heat exchangers used to facilitate the heat interchange. Note: You must ensure the minimum temperature difference is maintained. You may split process streams as outlined in the literature. You should then produce a PDF document in which you formally present the findings of your pinch analysis, including the number of heat exchangers required by the network you have designed. The summary of the findings from your EXCEL file should be presented in the manner shown in the solution to the class exercise in Week 20 of the course material. The summary table provided on Page 5 can be used as part of your submission. 3 IMPORTANT- Please note: You are expected to perform the pinch analysis in this assignment using a spreadsheet that you personally have created from first principles. It should be an active spreadsheet with all the relevant calculations developed and presented logically within the spreadsheet. If your spreadsheet is not an active spreadsheet, i.e. the data values have not been calculated within the spreadsheet, then you will receive ZERO MARKS for Part A of the assignment. Graphs should be plotted in Excel and when inspected should link to the data you have generated within the spreadsheet. Your heat exchanger network diagram should be presented clearly on a separate tab within your spreadsheet file. It is preferred that you use appropriate software tools to present your network diagram. Please see the Pinch Analysis Class Exercise solution document from Week 20 to see how you should present your findings for Part A in your PDF Document. General Breakdown of Marks for Part A • The "Composite Curves" for the hot and cold streams. [3 marks] • The "Shifted Composite Curves" for the hot and cold streams. [3 marks] • The "Problem Table” and “Infeasible & Feasible Heat Cascades” for this analysis. [5 marks] • The "Grand Composite" curve for this process. [3 marks] • Clearly identify the minimum hot utility required for this process. [2 marks] • Clearly identify the minimum cold utility required for this process. [2 marks] • Clearly identify the pinch temperature for this process. [2 marks] • Your design of a heat exchanger network compliant with maximum heat recovery. [10 marks] Total Marks Available for Part A = 30 Marks 4 Answer Summary Sheet for Part A Student Name Measure Minimum Heating Utility kW Minimum Cooling Utility kW Pinch Temperature °C Number of Heat Exchangers Required Summary of Heat Exchanger Duty Streams Heat Interchanged Exchanged kW Student Number Answer Hot Stream Inlet Temperature Hot Stream Outlet Cold Stream Cold Stream Inlet Temperature Temperature Outlet Temperature N.B. The number of rows in this table is no indicator of the expected number of heat exchanges required in this problem. 5