Tag
#equipment
5 topics across all disciplines.
Fired heaters — an open flame next to a hydrocarbon inventory
How a furnace is arranged, why the process fluid and flue gas travel in opposite directions, what draught and excess air actually control, and why the purge before light-off is never negotiable.
Vessels, exchangers and relief devices — the static equipment
What MAWP means and why it matters more than design pressure, how heat exchanger types differ, and why the relief device is the one protection that cannot be bypassed.
Storage tanks — the simplest equipment with the largest consequences
Why the vapour space is the whole design question, how a tank breathes, why overfill protection must be independent of the gauge, and why a tank is far weaker against vacuum than pressure.
Pumps — head, NPSH and why cavitation is a suction problem
Centrifugal versus positive displacement, what a pump curve tells you, why NPSH decides whether a pump survives, and why most pump failures are really piping failures.
Compressors — surge, staging and the machine you cannot replace quickly
Why gas is harder than liquid, what surge actually does to a centrifugal compressor, why compression is staged with intercooling, and why liquid in a suction line is catastrophic.