HI
I agree with all of the above, what I failed to mention was that I am willing to live with a 5-10 C deviation from setpt due to imperfect mixing in the tank and variable flow of the fluid entering (could swing as low as 50% of max). I wanted to ensure that I'm not installing a coil that's...
Hi
The problem seems rather simple if I dismiss the credit for the large volume of hot fluid and just assume the tank coil has to deliver all the heat. However, I want to optimize the coil area by taking credit for the tank heat. The inlet flow volume is approaching 22500 BBl/d at 140 F. The...
Hi
I'm in the process of sizing up a tank coil for heating heavy viscous crude. I'm targeting a temp difference of about 36 F. The tank is relatively large (5000 bbl)and once full will remain full as it is set up such that fluid entering the tank overflows to a second tank via an internal...
Unwetted Vessel Fire Size
Does anyone know how to take credit for insulation on a vessel when considering FIRE sizing of the unwetted surface. API-521 is quite clear that for a wetted vessel with insulation, some heat absorption credit can be taken provided the insulation can withstand the...