EXCEL - DRUM THICKNESS CALCULATION - SA 516 GR. 70 (AS PER IBR) - Steam Drum
TÍNH TOÁN ĐỘ DÀY CỦA BAO HƠI - SA 516 GR. 70 (THEO IBR)
Design pressure, Wp Kg/cm^2 (g)
Maximum Working Temperature, T1 °C
Metal Temperature, T2 = (T1) °C
°F
Drum I/D mm
PREMISSIBLE WORKING STRESS (f) = Et / 1.5
Et = Yield Stress at Metal temperature (From ASME Section - II, Part D) psi
Et = Yield Stress at Metal temperature (From ASME Section - II, Part D) Kg/cm^2
f = Et / 1.5 Kg/cm^2
Thickess of Drum Shell Provided, T1 mm
LIGAMENT EFFICIENCY
(E) Longitudinal Ligament of main bank tubes = (p - d) / p
MINIMUM THICKNESS
Tmin, ((Wp x I/D) / (2 x f x E - Wp)) + 0.762 mm
thickness of shell (if >60mm) mm
stress value reduction (>60mm) %
actual stress value Kg/cm^2
Actual thickness,T2 mm
TÍNH TOÁN ĐỘ DÀY CỦA BAO HƠI - SA 516 GR. 70 (THEO IBR)
Design pressure, Wp Kg/cm^2 (g)
Maximum Working Temperature, T1 °C
Metal Temperature, T2 = (T1) °C
°F
Drum I/D mm
PREMISSIBLE WORKING STRESS (f) = Et / 1.5
Et = Yield Stress at Metal temperature (From ASME Section - II, Part D) psi
Et = Yield Stress at Metal temperature (From ASME Section - II, Part D) Kg/cm^2
f = Et / 1.5 Kg/cm^2
Thickess of Drum Shell Provided, T1 mm
LIGAMENT EFFICIENCY
(E) Longitudinal Ligament of main bank tubes = (p - d) / p
MINIMUM THICKNESS
Tmin, ((Wp x I/D) / (2 x f x E - Wp)) + 0.762 mm
thickness of shell (if >60mm) mm
stress value reduction (>60mm) %
actual stress value Kg/cm^2
Actual thickness,T2 mm
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