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Hello, I am using a 8" 1500 # dual plate check valve (designed accordance to API 574) for well stream (2 phase) and the valve vendor dont know the Cv vaue but they come with the bore size of 137 mm. a) I used HYSYS pipe segment to find the pressure drop and they have 4 check valve types viz...

As zskmec posted, check API 2000...In a tank,due to inflow to the tank, vapour will be vented out (Outbreathing) through the vent line and due to outflow from tank air will be sucked in (Inbreathing) and you have to figure out which is the dimensioning case for vent line sizing..then you have a...

If pressure drop is not critical, velocity will be the limiting factor and apart from erosion,vibration and noise have to be considered. As far I know,NORSOK P-001 states V=K(1/density)^0.43, K-175, d-gas density in kg/m3 and velocity in m/s or 60 m/s whichever is lowest. API and NORSOK is...

Hei, If the equipment is designed for full vacuum (as minimum design pressure).Do the instrumentation in the piping connected to the equipment (Piping is designed for full vacuum) is also designed for full vacuum.If not why? Regards UKD

Hi, I am wondering how to design a open drain seal/fire pot (installed for hazardous drain system)and what is the criteria that determines the water seal level? Is there any standard that is applicable to such? Regards, UKD

Hello, Thanks for you answer.I am wondering by using bernoulli's equation, I will get steady mass flowrate which is the intial mass flow (peak rate).I would like to account the change in mass flow rate and upstream pressure with respect to time. Could anyone suggest me how to do that?

Hello, I have a production flow line (8") flowing with a pressure of 8 barg,65 deg C,density of 100 kg/m3,velocity of 20 m/s and i would like to calculate the leakage rate through a 2" orifice.If there is a leakage,the segment that I will have by closing the sectionalisation valve will be 2m3...

Hei, In one of the application in offshore, we have an hazardous open drain header routed to a collection tank and then into a seal pot (fire wall) before it is dumped into an open drain caisson. I am wondering about how to design a seal pot for open drain and I could see literature for flare...

Hei, For well flowlines,if choke collapses there will be an overpressure downstream the choke. I would like to know how many choke failure we have to consider at a time (may be one/two) and which standard refers regarding choke collapse requirement.Appreciate your respose. Regards,UKD

Hei, For well flowlines,if choke collapses there will be an overpressure downstream the choke.I would like to know how many choke failure we have to consider at a time (may be one/two) and which standard refers regarding choke collapse requirement. Appreciate your respose. Regards, UKD

Thank you.I am using axial cyclone and demister plate.The K-factor is above 2 and I used correction factor (0.8). Will it means that the scrubber efficieny is low and there will be liquid entraintment. How to calculate the pressure drop across axial cyclone??

Hi, I have a suction scrubber with design capacity 7600 ltrs and on debottlenecking , I increase the compressor from 1.5 MSm3/d to 2.5 MSm3/d by decreasing the discharge pressure of compressor and keep suction pressure as constant.Compressor is located downstream to scrubber and this is used in...

Hi, How to calulate standard flowrate from the mass flow rate for HC gas? Available data density at actual condition and pressure is given? Mass flowrate : 194773 Kg/hr and Density 84 kg/m3 at 94 bar? Please anybody can help me out.

Could anybody tell me how to calculate precharge pressure in pulsation damper,gas used : Nitrogen,Pulsation damper : bladder type,6 liters System Specs: Pump Strokes/min of each piston: 960 Displacement of volume in each stroke: 6,25 mm3 * (6 * 960) strokes = 36 litre/minute (max flow @...

Addition to the above data, Please consider Outside plate is of SS-316 with thermail conductivity of 16.27 W/m.K

Hi, Can anybody explain me how to size a space heater in a package unit. I have the following info. Cabinet Size (LXWXH):4.5 X1 X 2.6 m Hydraulic Diameter : 1.63636 m Air density at 10deg C : 1.3375 kg/m3 Air Velocity : 55 m/s Dynamic Viscosity : 1.68E-05 kg.m/s Reynolds Number : 7.17E+06...

Shall anybody what should be the duration to perform FAT for a temporary equipment ( as it is 10 mins for pressure testing) as per Norsok Standard (Z-015) used for Offshore. Shall you tell me the appropiate standard I have to look for.

Hi Stephen, The fluid is fed to the hydraulic cylinder with a pressure of 120 bar and the hydraulic cylinder is coupled to do some wire line application.When the pressure drops to 80 bar,then the spring forces the fluid into the reservoir. Based on the previous data,I would like to bleed off...

Hi, Would anybody please clarify my query : An Hydraulic Cylinder is pressurized to 120 bar by using shell tellus T-12.I would like to depressurize the hydraulic cylinder with bleed off time of about 10 secs to a atm. tank.Length of return pipe : 35m,Cylinder capacity : 4.5 ltrs.Can anybody...

Hi, 1.Did anybody tell me what is the main difference between NAS Class & SAE AS 4059?. 2.If I use Automatic particle counter(APC) to measure particle as per SAE AS4059D Class6B-F.Is there is any specific calibration I have to go.Bcoz I was in the impression I have to calibrate APC as per ISO...