Safety & relief · Flare header & tip Mach · API 521 §5/§7
Multi-Source Flare Load & Header
Groups relief sources by contingency, picks the governing case, and computes flow-weighted mixture properties, flare-tip Mach (API 521 limit), header Mach and built-up back-pressure. Enter rate + MW for each source; tag a contingency to group simultaneous loads.
Relief Sources (rate + MW required)
kg/h
MW
°C
Contingency
Geometry & Properties
in
in
m
Engineering Basis
Relief LOAD governed by the largest summed simultaneous mass rate; tip-Mach, header-Mach and back-pressure are evaluated for EVERY contingency and the worst reported (a lighter/hotter low-mass case can choke the tip).