Question 1 [30 marks] In a company, two graduate engineers were asked to independently investigate two scenarios for the typical design of a cylindrical pressure vessel (2 m tall and 1.5 m diameter)...

Question 1 [30 marks] In a company, two graduate engineers were asked to independently investigate two scenarios for the typical design of a cylindrical pressure vessel (2 m tall and 1.5 m diameter) to be operated at 10 bara and 275°C. The cylindrical vessel is to be made of SS316 with 18Cr/8Ni/2.5Mo. The bottom section of the vessel has an ellipsoidal head, and the upper section has a flat head with a full-face gasket (plate diameter of 1.7 m). Scenario 1: Welds are not fully radiographed, and spot welded with a corrosion allowance of 4 mm. Scenario 2: Welds are fully radiographed with a corrosion of allowance of 2 mm. The graduate engineers have arrived at the following values as part of the design. Engineer 1 Scenario 1 Scenario 2 Thickness of cylindrical section – 14.2 mm Thickness of ellipsoidal head – 14.2 mm Flat head thickness – 90 mm Thickness of cylindrical section – 15.2 mm Thickness of ellipsoidal head – 16.0 mm Flat head thickness – 90 mm Engineer 2 Scenario 1 Scenario 2 Thickness of cylindrical section – 12.3 mm Thickness of ellipsoidal head – 12.2 mm Flat head thickness – 78 mm Thickness of cylindrical section – 8.6 mm Thickness of ellipsoidal head – 8.7 mm Flat head thickness – 78 mm As the supervisor of these graduates, you are responsible to comment on their abilities by evaluating the design specifications yourself and identifying which engineer has arrived at the more appropriate/accurate design specifications based on the given information. Please report the percentage deviations for all scenarios.