Articles Posted in the " Thin and thick pressure vessels " Category

  • Design of Thin Walled Welded Pressure Vessels -4

    Design of Thin Walled Welded Pressure Vessels -4

    DESIGN OF THIN WALLED WELDED PRESSURE VESSELS–4 The end closure of the pressure vessel is called the HEAD. TYPES OF HEADS (a) Flat heads (b) Flanged and shallow dished head L > Do, used up to 2 atm pressure For example, Do= 1800 mm, L = 3000 mm and  icr=2th, (c) Flanged and standard dished […]


  • Design of Pressure Vessels–3

    Design of Pressure Vessels–3

    Design of Pressure Vessels–3 DESIGN OF THIN WALLED PRESSURE VESSELS There are two types of thin walled pressure vessels. (i) Welded pressure vessels (ii) Riveted pressure vessels Design of a pressure vessel consists of two parts. Design of Shell Design of Head(s) or End Closure(s) Design of shell includes selection of  (i)  Material of construction […]


  • *Design of Pressure Vessels–2

    *Design of Pressure Vessels–2

    Design of Pressure Vessels–2 Definition of a sheet SHEET when t < 6 mm (Normally thin walled pressure vessels) PLATE when t > 6 mm ( Normally thick walled pressure vessels) COMMONLY USED GAGE NUMBERS OF SHEETS Gage No.                     Thickness of sheet 22                                0.028”  (0.7 mm) 20                                0.035”   (0.875 mm) 18                                0.049”   (1.225 […]


  • Design of Pressure Vessels–1

    Design of Pressure Vessels–1

    DESIGN OF PRESSURE VESSELS –1   DEFINITION OF A PRESSURE VESSEL Pressure vessel is a closed container having fluid under pressure. Types of pressure vessels (a)   Storage pressure vessels LPG cylinder Oxygen cylinder Nitrogen cylinder Hydrogen cylinder Acetylene cylinder LPG spherical shell Automobile tyres Shaving cream cans Tooth paste cans (b)   Process vessels Autoclave—High pressure […]


  • Discontinuity Stresses

    Discontinuity Stresses

    DISCONTINUITY STRESSES A designer should establish the type of discontinuity and then discontinuity stresses in design of pressure vessels /pipes. Two types of discontinuities (i)  Gross structural discontinuity (ii)  Local  structural discontinuity Gross Structural Discontinuity A discontinuity which increases the stress or strain which affect a relatively large portion of the structure. It significantly affects the […]