Internal diameter is calculated using nominal outside diameter and wall thickness as per ANSI B36.10: 1970 and BS 1600: Part 2: 1970.
Horizontal and vertical vessel volume and surface area with hemispherical and ellipsoidal heads.
Vessel surface area
App calculates mass flow and molecular weight to Standard or Normal Gas Volume.
Pipe wall thickness calculation using ASME B31.3, B31.4, and B31.8 methods.
App calculates counter current LMTD