GOVERNMENT ENGINEERING COLLAGE,SURAT Subject: Design of machine elements Topic: PRESSURE VESSEL

GROUP MEMBER DANAK HARDIK 140233119002 GOHIL PRAGNES 140233119003 NAYKA ASHISH 140233119005 MAISURAI JENISH 140233119006 NAYKA MITESH 140233119007 PATEL ZAID 140233119010 VANIYAWALA CHITRANG 140233119016

1.Structure of vessels:

2.Classification of vessels: i. According to pressure and its type Internal Pressure Vessel —— vessels where the media pressure inside the vessel is larger than that outside (gauge pressure).

Low pressure vessel (L): 0.1≤P < 1.6 MPa Medium pressure vessel (M): 1.6 ≤P < 10 MPa High pressure vessel (H): 10 ≤ P < 100 MPa Ultra-high pressure vessel (U): P ≥100 MPa

(2)External Pressure Vessel —— vessels where the media pressure inside the vessel is lower than that outside (gauge pressure). When the internal pressure < 0.1 MPa (absolute pressure), such vessels are called Vacuum Vessel.

ii. According to temperature Normal temperature vessel -20< T ≤200℃ Medium temperature vessel —— between normal T & high T vessels Low temperature vessel < -20 ℃ High temperature vessel —— where the wall temperature is above the creep temperature.

2.Basic Contents: i. Selection of materials Selecting the materials of equipment according to the technical indexes t, p, media and the principles of material selection. ii. Structure design

iii. Calculation of strength and thickness (including the cylinders and heads) iv. Strength verification in hydraulic pressure test v. Seal design; selecting or designing flanges

vi. Selection of support & the verification of strength and stability vii. Design and calculation of reinforcement for opening viii. Selection of other parts and accessories ix. Other special design x. Plotting the equipment drawings xi. Compiling the equipment specifications

1.Cylindrate shell subjected to uniform gas internal pressure: ∵ R1 = ∞ R2 = D / 2 Putting them into the previous equations: s D p