Diameter calculation for pipes and manifolds in compressor stations
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I’ve looked at some information on long-distance pipelines; some say that it’s necessary to control the pressure drop in each section of the pipeline, while others suggest that the pipe diameter should be determined based on the economic flow velocity. I would like to ask: 1. How long are the pipelines inside a compression station for long-distance gas transmission lines, usually? The length of the main process, excluding branches. 2. The local friction in the compressor station should be quite high; generally, how many times is it compared to the friction along the flow path? 50%? Or more? 3. How is the diameter of the pipes in the compressor station designed? 4. How is the diameter of the collecting duct designed?
First, the optimal distribution of pressure throughout the pipeline is determined based on the gas flow rate and the \"maximum pressure principle\", in order to minimize the number of booster stations required for operation. Then, the load among the compressors in each booster station is optimized according to the pressure ratio at each station, thereby minimizing the total fuel consumption.
I know the principles for arranging compressor stations; what I want to know is how the pipe diameter is determined? Especially the pipe diameter inside the compressor station.