Hi there:
I am currently sizing a blanket (fuel gas) gas line from a plant header system to a small 400 bbl tank. During the initial sizing, it was determined by the plant project division to add two additional tanks for the system and blanket these as well from the same plant fuel gas header. As a result, I will need to upsize my blanket gas line to meet the demand of the additional two tanks as they will sit in the plant side by side. I am using Unisim to size the line (and have the required flow rates of gas required) but had a few questions to ensure the design is safe and supplies the demand required.
1. How would I determine that the plant header system can meet the demand of an additional three tanks? I was hoping someone could provide me with some things to look at to determine the flow rate in the line to provide re assurance that the header can supply the additional demand?
2. Is there some rules of thumb that I should consider? If so could you elaborate or point me in the direction to find them? (i.e. pressure at regulator no less than 350 kpag or gas velocity should be no greater than...)?
Thank you in advance. Any help would be greatly appreicated.