Step 1: Creating the flow sheetStep 2: Entering the components and engineering unitsStep 3: Entering the composition of feed streamStep 4: Entering the SCDS Column specsHEAT EXCHANGERProblem Statement:A 100 kmol/hr stream of benzene at room temperature (298 K) is fed to a heat exchangerat atmospheric pressure. A 100 kmol/hr steam at 398 K, also at atmospheric pressure, isused to heat up the liquid benzene to 350 K prior to sending it in to a reactor. Due to thepiping, there is a 0.08 atm pressure drop on both the benzene and steam product lines.Set up a heat exchanger simulation in CHEMCAD and report the product streamtemperatures and vapor fractions, heat duty of the heat exchanger and the LMTD (LogMean Temperature Difference) for this heat exchange.Procedure:Step 1: Creating the flow sheetStep 2: Entering the components and engineering unitsStep 3: Entering the composition of feed streamStep 4: Entering the heat exchanger specsStep 5: Running the simulation and retrieving the resultsStep 1: Creating the flow sheetGo to new on the File menu and save the blank simulation. Right click on Heatexchanger on the CHEMCAD palette and select a heat exchanger with two inlet streamsand two outlet streams. Click once on simulation window to paste it. Click on the feedicon on the palette and paste it on the workspace. Similarly, click on the product icon andplace it on the workspace (for the vertical feed and product icons, one can right click onthe feed/product icons and select the appropriate icons). After making sure that all thenecessary icons are placed on the workspace, they can be connected by using stream.CHEMCAD automatically assigns numbers to streams and unit operations the order inwhich they are placed on the workspace. After completing the flow sheet, click once inthe S/G icon found on the menu bar so that the simulation is changed from edit mode torun mode. The same icon can be used to toggle between these two simulation modes.Alternatively, one can toggle between Edit Flowsheet and Run Simulation on the menubar to achieve the same.Step 2: Entering the components and engineering unitsGo to the Thermophysical on the menu bar and click on Components List. Find benzeneand water from the CHEMCAD components list and add them to the component list. Goto the Format menu and click on Engineering Units and select the desired units for suchproperties as temperature, pressure etc. Click OK to continue.Step 3: Entering the composition of feed streamDouble click on the feed streams and enter the feed information (temperature, pressureand total flow rate) given in the problem statement. Click once on Flash to get the feedstream enthalpy and vapor fraction in feed at the feed conditions.Step 4: Entering the SCDS Column specsDouble click on the Heat exchanger. Calculation Modes:These three modes can be left to the default settings and the reader is encouraged to learnmore about other options for the calculation modes by clicking on Help button located onthe bottom left corner.Pressure drops:Enter the value ‘0.08’ for the pressure drop in both the streams, as given in the problemstatement.Enter one specification only:One can enter value for any one of the specifications listed in this field. From theproblem statement, it can be seen that the requirement for this particular heat exchangeris a 350 K temperature for the benzene stream. Enter ‘350’ in the box next to the streamnumber corresponding to the benzene product.Note:Miscellaneous settings and Cost estimations fields are optional and can be left blank, aspertinent information is not provided in the problem statement.Click on Ok to continue.Step 5: Running the simulation and retrieving the resultsAfter entering the available information on the workspace as described in the previoussteps, one can run the simulation by clicking on R on the menu bar. Alternatively, one canrun the simulation by clicking on Run on the menu bar and selecting Run all. The statusof the simulation can be found at the bottom left hand corner of the screen. The message,Run Finished appears in this place if the run is successfully completed. To view theproduct stream properties, one can either double click on the individual product streamsor by clicking Results on the menu bar and selecting Stream Compositions and furtherselecting All Streams. The results obtained from the latter method will be in a WordPadfile. All the results associated with the heat exchanger can be found by clicking on Resultsmenu and selecting Unit Op’s and then the heat exchanger. The results will then beavailable in a WordPad