Dimensioning of cryogenic transfer lines

✍ Scribed by M.V. Krishna Murthy; R.V. Seshagiri Rao; K. Srinivasan

• Publisher: Elsevier Science
• Year: 1974
• Tongue: English
• Weight: 318 KB
• Volume: 14
• Category: Article
• ISSN: 0011-2275
• DOI: 10.1016/0011-2275(74)90193-3

✦ Synopsis

Nomenclature a acoustic velocity in vapour at temperature Ta, m s "1 Cp specific heat, kcal kg "1 K "l d diameter of the pipe when vents are provided on the line, m D diameter of the pipe line when vents are not provided, m (unless mentioned otherwise) gc gravitational constant 9.81 kg ms "2 kgf q K I constant deemed in (11) K2 constant defined in (23) L length of the pipe line, m LI interval between the vents, m P pressure, lb in'aa Q volumetric flow rate, m a s "I (unless mentioned otherwise) R gas constant, kgfm kg q K q T a ambient temperature assumed to be 300 K Tn temperature deemed in (13) T s saturation temperature of liquid at one atmosphere, K u velocity, m s "1 v specific volume, m a s q x distance along the pipe line from entrance, m r shear stress, lb in-2 p density, kg m "a 3' ratio of specific heats Subscripts d with vents provided f liquid g vapour min minimum v vent