Design for open-air long-distance natural gas transmission
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There is a project involving the long-distance transport of natural gas, over a distance of around 30 km. The pipes are installed in an open-air, overhead configuration, with a diameter of DN300. How should the expansion bends be designed – through natural compensation or by using expansion joints? Will natural compensation increase the pipe pressure drop? If an expansion joint is to be installed, what type of expansion joint should be used? How much needs to be set? What are the costs for expansion joints, and are the maintenance costs high?
For a DN300 natural gas pipeline, I think very little compensation is needed; natural compensation will suffice