When I size two phase PSV, I need to run HYSYS for an isenthalpic (adiabatic) flash calculation at 90% of relief pressure to calculate the vapour specific volume.
Could someone guide me how to set up this HYSYS model. The service is condensate, tow phase will be water and steam.
Thanks in advance.
Our client needs a 3" nitrogen transferring piping system with 70,000 scfh flow rate under 100 psig pressure. The client engineer indicated they would like to use stainless steel piping. I just wonder what is the reason behind that? Thanks advance.
Hi, everyone,
Dose anyone can provide the rule of thumb or resources for:
1. arrangement and layout of high temperature/high pressure piping systems and supports.
2. piping support component selection.
Many thanks ahead.
Hello, everyone,
This question comes in my mind today suddenly.
According to B31.3, if SE<SA, the piping system could pass the displacement stress analysis.
SA=f(1.25Sc+0.25Sh) or SA=f(1.25(Sc+Sh)-SL)
Either of those two equations depends on Factor f, or say, Cycles N.
Let's assume there are two...
According to CSA B52 clause 7.10, the room ventilation required to exhaust is based on the system refrigeration charges. What I know now is the HP of the ammonia compressor. How could I estimate the exhaust fan flow rate?
Thanks ahead.
Hi,everyone,
I need a thought about Main Steam Line Condensate. I have a 4.5km buried steam line @ 150psi. Beside this pipe lays a 15psi condensate line. I want to trap this main to the condensate pipe (Now the condensate just be drained to U/G). The load in the steam line is 90% for heating...
I am doing a biochemical plant piping design. The ASME BPE-2002 should be complied with. Here is my question.
I need to install a flowmeter, and its connection is Threaded Female, NPS 1/2". But according to the ASME BPE-2002, all threaded connection is not recommended (refer to BPE-2002...
Could someone guide me how to choose a slurry pump? I do not have the specific information right now. I need general selection procedure. I appreciate any information.
Robin
Could anyone answer my question please.
I want to calculate the heating and cooling load of a small locker room. The area is 500 sq.ft.. To reach the outside air requirement, vent airflow is 0.5cfm/sq.ft.. The system is VAV w/ Baseboard Heating. After the calculation, I got a funny result on...
Does anyone know what the surport span of brass pipe is, say, 1-1/2" condensate line, 220F degree?
In B31.1 or B31.3, the Maximum Allowable Values for Carbon Steel (A106) is much greater than Brass (B43), 20ksi vs. 8ksi. Does that mean the brass piping system needs more loop to overcome...
Does anyone know the standard (ASME B31.3?) for oxygen pipe, or piping specification (material, prssure rate, temperature, installation, inspection)? Where could I find that stuff?
Thanks in advance.
Robin
Does anyone know what the support span of PVC pipe, say, 4" pipe, schedule 40 without pressure (just for conduit only)? Where could I find the general description regarding this issue?
Thanks.
Robin
Does anyone know how to calculate thermal bending moments of Mi, Mo, Mt?
I know it is a very complicated question. I need to know general guide and equation.
Refer to "Practical Guide to ASME B31.3 Process Piping" by G.E. Woods and R.B. Baguley Page 68, it does not show how to get...
Can anyone tell me the means how to overcome the contraction of chilled water pipe in the piping design? I have about 1000ft STRAIGHT pipe ( I can not have the L loop or U loop within it), the contraction is about 2". I know I can have expansion joint or cold spring to overcome expansion...
