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http://dx.doi.org/10.7837/kosomes.2019.25.6.772

Effects of Ambient Temperature Change on the Internal Pressure Change of Multi-Layered Subsea Pipeline  

Yang, Seung Ho (Department of Mechanical Engineering, Ulsan College)
Publication Information
Journal of the Korean Society of Marine Environment & Safety / v.25, no.6, 2019 , pp. 772-779 More about this Journal
Abstract
The subsea pipeline has received considerable attention as a high-value-added industry linked to the energy and steel industries including natural resource development. The design and installation of the subsea pipeline require a variety of key technologies to carry out the project. In particular, a thorough pre-verification process through pre-commissioning is essential for the safe operation of the subsea pipeline. The hydrotesting stage in the pre-commissioning process of the subsea pipeline is known to be affected significantly by the ambient temperature change; however, there is a little study based on the theoretical and numerical approach. In this study, the method of predicting the internal temperature change using the transient heat transfer method for the stage of hydrotesting during the pre-commissioning process of the subsea pipeline and the prediction method of the pressure variation in the pipeline using it were proposed. The predicted results were compared with field test results and its effectiveness was verified. The proposed analysis procedure is expected to contribute to the productivity improvement of the subsea pipeline installation project by enabling the prediction of pressure variation through pipeline heat transfer simulation from the initial design stage of the subsea pipeline installation project.
Keywords
Subsea pipeline; Pre-commissioning; Hydrotesting; Transient heat transfer analysis; Prediction of pressure variation;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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