Process Equipment and Plant Design In case of a shell and tube heat exchanger, the effect of L/D on inside film heat transfer co-efficient (hi) vanishes after a Reynold number of 1000 5000 10000 3000 1000 5000 10000 3000 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Welded joint efficiency in the design of chemical process equipment is taken as 0.95 0.55 0.75 0.85 0.95 0.55 0.75 0.85 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Overall distillation column efficiency for most of the refinery columns can be given by (for μ = 0.07 - 1.4 cp and relative volatility < 4) (where η = overall column efficiency, % μ = molal average viscosity of feed at average column temperature and pressure, cp Δp = pressure drop per tray, psi) Η = 1.66 - 0.25 log μ Η = 17 - 61.1 log μ Η = 0.25 log μ - 1.67 Η = 24.6 (Δp/μ) Η = 1.66 - 0.25 log μ Η = 17 - 61.1 log μ Η = 0.25 log μ - 1.67 Η = 24.6 (Δp/μ) ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Holes of a sieve tray are arranged in triangular pitch of __________ times the hole diameter. 2.5 to 5 5 to 10 10 to 15 1.5 to 2 2.5 to 5 5 to 10 10 to 15 1.5 to 2 ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design An adequate clearance between the tray and the shell wall of a distillation column is provided to Avoid back-trapping None of these Allow for thermal expansion and facilitate installation Drain the liquid from the tray when the unit is not in operation Avoid back-trapping None of these Allow for thermal expansion and facilitate installation Drain the liquid from the tray when the unit is not in operation ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design For identical operating conditions, the pressure drop over __________ tray is the highest out of the following. Sieve Bubble cap Counterflow Valve Sieve Bubble cap Counterflow Valve ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS