Questions about LNG pipeline drainage?
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There is residual liquid at the bottom of the LNG pipeline; when the pressure inside the pipeline is high, this residual liquid does not provide as good a cooling effect on the pipe wall in direct contact with it as it does when the pressure is low. What is being asked here?
Could you describe it again? I didn’t quite understand what it meant······
The amount of vaporization (heat absorbed) differs at high and low pressures; the issue is not very clear
When the pipeline pressure is low, LNG is more prone to vaporization, and the vaporization process absorbs a large amount of latent heat, thereby resulting in an improved cooling effect