Search results for query: *

Hi folks, does anyone know where is the largest FCC of the world? Is it at Pertamina, Indonesia or Reliance, India? Thanks, -SB

Hi, any one has any idea about the acceptable rate of loss in bar/min for hydrotest acceptability as per ASME 31.3? Thanks.

Hi folks, does API 676 apply to progressive cavity pumps? I want to know it with respect to the cavitation criteria of 3% drop in flow or head. Do progressive cavity pumps also follow same cavitation criteria (for NPSHR calculation) of 3% drop in flow/head? If not, what is the cavitation...

Hi folks, I have to install a Progressive Capacity Pump and I wish to do the motor run test. Now, the problem is that the pump data sheet mentions "Coupling- No, Block-Yes". I believe, this 'block' does the function of the coupling. Does anyone know if I can remove the block (easy or...

Hi Guys, our cd seems to be corrupted. I need to check if API 610 requirement for NPSH testing (4.3.4.1.3) talks about checking the pressure at 3% head drop or something else? thanks in advance...

Hi guys, I have a vessel with say 100m3 of water at room temp. I have to keep it recirculating with a centrifugal pump of 1MW capacity. I am concerned abt the temp rise of the fluid. The temp rise is only due to the friction losses, rite? So, i should calculate as follows: Electrical power...

Hi folks, the limiting conditions in a distillation column are because of limitations on Vapor/Liq ratio- if V/L is very high, the column will go under flooding, if V/L is very low, it will exhibit weeping and so on... Now, I have a serious difference of opinion from two of my colleagues (who...

Hi FOlks, Sorry, I dont belong to this community. So if the questions sounds trivial, forgive me! I want some information about Li-polymer batteries. Is frequent charging a problem for Li-polymer batteries? Is there anything like "overcharging" ? Leaving the battery under charging for...

Hi folks, i was reading some where that pump alignment should be done at the operating temperature. Does it really make much of a difference if say, my operating temperature is below 60 C and i align the pump at 25 C? Thanks... -SB

Hi folks, where can i find some "free" info on detailed standards for pump acceptance tests? Actually, we normally go for motor checks, ppump performance checks (head, capacity, power, NPSH), logic checks (start/stop, duty/standby), vibration, noise etc... Can anyone tell what other...

Hi Guys, I have a set of PIDs with me and it seems the designer has put NRV before discharge valve in all pumps. Dont u think this can be a problem due to thermal expansion of the liquid trapped in between the NRV and the discharge valve (when the discharge valve is closed)? Actually, I have...

Hi, where can I get information on how to design an air dryer for instrument air compressor? Thanks, -SB

Hi guys, need some info on some one with hands on experience with Refinery Scheduling softwares like RefSched, Haverley, Cosytech, Honeywell etc.... Actually, i want to know if these softwares give schedules in cofirmation with product yields (straight run, ofcourse). Actually, most of these...

Hi, I am doing some research in Automated Wet-Etch Station Scheduling. Can someone please help me with industrial data and description? I have gone through some journal papers, however, no concrete data is available. I would like to know 1. the processing times of wafers/carriers in baths 2. the...