Dear colleagues
Plant safety regulations require the de-energizing of system when working on it including pneumatic valves. a recommendation was made to introduce lockable isolating valves in the system but the requirement has been specified to lock the actual process valve. there are hundreds...
Good day fellow engineers
set-up shown in image below has blockage challenges at the eductor area (actually at pipe attached after eductor). my suspicions are that ring spray water is not adequate enough to wash down the settled lime powder on the hopper, but i dont know the calculations to...
Good day fellow engineers
I have a centrifugal pump used to pump brine (salt solution) for water treatment process. there is evident corrosion on the pump casing which is of cast iron/steel material (see attached image). my question is what is the right pump components' material to use for...
i have noticed on most,if not all, situations that there is a reducer pipe installed immediately after centrifugal pump discharge to increase the diameter of the discharge pipe. why?
Dear Engineers
May you please assist me with the following ballpark values for a demin water plant for a 40MW methane gas-fired power generation plant:
1. size (water flow rate)?
2. cost of constructing the demin plant?
regards
Dear Engineers
May you please assist me with the following ballpark values for a demin water plant for a 40MW methane gas-fired power generation plant:
1. size (water flow rate)?
2. cost of constructing the demin plant?
regards
motor rating: power=32kW, FLC=63A, Voltage=380V
before rewind: winding resistance=7.9ohms, line current=55A, phase current=31.8A
after rewind: winding resistance=9.1ohms, line current=84A, phase current=45A
after rewinding, the motor is drawing 33% more than the rated current but monitored it...
our mill gearboxes are cooled by a circulating oil cooling system comprising of pump, filter, cooler and gearbox. there are differences in component sizes on different which can be combined in 3 sets of systems, A, B & C as follows:
pump A = Pump B = pump C
filter A = filter B = filter C
gearbox...
the governor valve controlled by the vickers proportional directional valve with feedback was closing on its own. the controller opened it to the required position and it closed again causing the unit to trip.
at first the module was changed and the problem re-occured then the proportional...
i am doing incident investigations on old trips and one of my bottlenecks is lack of information...
attached is a trend of what happened. the right hand (RH) air flow measurement shoots up without any increase in load or vane position. this led to a chain of reaction shown on the trends until...
i would like assistance on how to design a governor valve positioner link/stud suitable to withstand the up & down system vibrations of 19.1mm/s as shown in the attachment. the positioner link stud shown in the attachment has fractured 3 times in the past year. when it fractured the second time...
tahnks for your assistance. after taking another route in my investigation and my solution implementation i think i have to repost focusing on the new route that i have taken in troubleshooting to get assistance on how to come with the solution
these are the pics i could get. i will try to get history on the unithttp://files.engineering.com/getfile.aspx?folder=a03e9945-1e6d-468c-89c7-6612e939abb0&file=IMG_0213.JPG
governor valve positioner link stud fractured at the point where the link is joined to the governor actuator. i measured the vertical vibrations on the position shown on the picture attached on different units (units 6 & 7) because they have the same valve design and unit capacity. on unit 6...
