Determination of the main pipe diameter
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Now that the workshop process flow diagram has been finalized, how should the size of the main pipes for various utility systems be determined? Do I need to calculate it?
Of course, calculations are needed; the pipe diameter can be determined based on the flow rate and the velocity of the fluid in use
Reply to 2# baha: Then how should the flow rate of that main pipe be determined? I used the formula: d=18.81x(v/u)-2 to calculate it, but why doesn’t the diameter match?
The formula was entered incorrectly; haha, d=18.81x(v/u)0.5
First, calculate the demand for utility services (circulating water, brine, steam, nitrogen, etc.) for each device; this is determined based on the amount of heat that needs to be removed or generated as a result of the reactions carried out by that specific device. The diameter of the pipes for utility services leading to the equipment is determined based on this demand. Once the utility requirements for each device are known, it is possible to determine the overall utility needs for the entire workshop. Then, use the formula you mentioned to calculate the diameter of the pipes; this refers to the diameter of the main pipes entering the workshop. The diameter of the return pipes can be one size larger than that of the inlet pipes.
It’s not using the equivalent conversion from that process manual