I was asked to check the adequacy of a relief valve on some pipelines of supplying natural gas fuel to steam boilers (the steam boilers are to generate 270 pounds of steam for a chemical plant which is located in a place where ASME codes apply).
Thesse relief valves all located downstream of...
Working on sizing a PSV for a column. I am considering the excessive reboiler heat input scenario. In a thermal-siphon reboiler, the process flow is heated in the tube side with steam on the shell side. The control vale on the steam supply senses the column temperature to control the steam flow...
Some PSV sizing programs provide a feature to calculate PSV inlet and outlet piping pressure loss by using the process required relief rate instead of PSV actual relief capacity. I know ASME VIII Div I appendix M gives recommendation of 3% and 10% limitation for compressible fluid inlet/outlet...
Here is an opinion on how to specify the max pressure and temperature for process measurement instrumentation.
In order to prevent the pressure/temperature rating of the instrumentation becoming a weak point of the system, for the max pressure or temperature specified on the datasheet, process...
Thank you, Joe Wong, for the advice. After the packing in the vessel is hot purged for 2 hours, the operation procedure requests to put the hot N2 on cooling, slowly reduce the N2 flow temperature to norminal 20 C.
The debate was if operation was to run above the vessel design temperature...
I've learnt a lot by reading the discussions. I ran into a similar question. My plant owned a grandfathered pressure vessel designed for 625 PSIG and full vacuum, design temperature was 500 F. It is certainly adequate for normal operation condition of 450 PSIG @ 20 C ; However, the vessel is...
I have a question addition to the discussions on thread1203-147200. I agree a norminal D size PSV is more than adequate to handle liquid thermal expansion.
Once the PSV spec is determined, can the piping pressure loss calculation be exempted due to the small quantity of the relief load? Does...
Dealing with steam boilers burn Residual Fuel Oil (*heavy fraction hydrocarbons that are the residues after very high temperature distillation, or so called Vacuum Residual Fuel Oil). The existing fire suppression system is auto water sprinklers (not diluge system). A debate is weather or not...
Dealing with steam boilers burn Residual Fuel Oil (*heavy fraction hydrocarbons that are the residues after very high temperature distillation, or so called Vacuum Residual Fuel Oil). The existing fire suppression system is auto water sprinklers (not diluge system). A debate is weather or not...
Dealing with steam boilers burn Residual Fuel Oil (*heavy fraction hydrocarbons that are the residues after very high temperature distillation, or so called Vacuum Residual Fuel Oil). The existing fire suppression system is auto water sprinklers (not diluge system). A debate is weather or not...
Dealing with steam boilers burn Residual Fuel Oil (*heavy fraction hydrocarbons that are the residues after very high temperature distillation, or so called Vacuum Residual Fuel Oil). The existing fire suppression system is auto water sprinklers (not diluge system). A debate is weather or not...
