Browsing Publikasjoner fra CRIStin by Subject "undervannsteknologi"
Now showing items 1-13 of 13
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Baseline design of a subsea shuttle tanker system for liquid carbon dioxide transportation
(Peer reviewed; Journal article, 2021-10)This paper presents the baseline design of a 34,000-tonne subsea shuttle tanker (SST). The SST is proposed as an alternative to subsea pipelines and surface tankers for the transportation of liquid carbon dioxide (CO2) ... -
Burst pressure design of the cargo tank used in a novel large subsea freight-glider
(Peer reviewed; Journal article, 2021)This paper presents the burst pressure design of the cargo tank used in the University of Stavanger (UiS) Subsea Freight-Glider (USFG). The USFG is an innovative large underwater cargo glider drone that is 50 m long and ... -
CFD Investigation on Hydrodynamic Resistance of a Novel Subsea Shuttle Tanker
(Peer reviewed; Journal article, 2021-12)The Subsea Shuttle Tanker (SST) was proposed by Equinor as an alternative to subsea pipelines and surface tankers for the transportation of liquid carbon dioxide (CO2) from existing offshore/land facilities to marginal ... -
Comparative study of five commonly used gravity type fish cages under pure current conditions
(Peer reviewed; Journal article, 2022-04)Gravity type fish cages have been commonly used in marine aquaculture for years. However, only limited research efforts have been made to assess the influences of different design parameters on the structural responses of ... -
Comparative study on two deployment methods for large subsea spools
(Peer reviewed; Journal article, 2021-08)The demand for subsea spool deployment is increasing with the expansion of offshore projects. For a project to install multiple spools, different deployment methods can be used. The choice of method may influence the safety ... -
Development of a coupling algorithm for fluid-structure interaction analysis of submerged aquaculture nets
(Peer reviewed; Journal article, 2021-12)A coupling algorithm between two open-source numerical toolboxes, i.e., OpenFOAM and Code_Aster, is implemented for fluid-structure interaction analysis of submerged nets. This algorithm is developed to handle the wake ... -
Identification of the safety operating envelope of a novel subsea shuttle tanker
(Peer reviewed; Journal article, 2022-10)A baseline Subsea Shuttle Tanker (SST) was proposed as a cost-efficient maritime transportation method. It is designed to be a 164 m length, 17 m beam autonomous underwater vessel with a cargo capacity of over 16,000 m3. ... -
Numerical investigations of pipe flow downstream a flow conditioner with bundle of tubes
(Peer reviewed; Journal article, 2023-01)Flow conditioners are widely utilized in pipeline systems to improve the precision of flow rate measurement in the pipeline systems of the offshore and subsea oil and gas industry. There is a lack of knowledge about the ... -
Numerical simulation of piggyback pipelaying under current loadings
(Peer reviewed; Journal article, 2023)For piggyback pipelaying operations, current-induced force and its effect on the piggyback pipe have not been thoroughly studied. In the present study, an improved method in hydrodynamic load calculation and structural ... -
Numerical study on deployment of subsea template using coupled and uncoupled model
(Peer reviewed; Journal article, 2021)This study compares deployment of a subsea template simulated as a coupled model and as an uncoupled model in the time domain simulation software Orcaflex. Defining vessel motion as prescribed simplifies the model and will ... -
Simulation of peak tension loads in Subsea power cables during installation
(Peer reviewed; Journal article, 2021-11)At present, most of the insurance claims in the offshore wind industry are due to cable failures where a large percentage occurs during the installation of the array and export cables. As the reliability of the cables ... -
Subsea FRP pipeline performance in external pressure: Failure and external pressure-induced buckling
(Peer reviewed; Journal article, 2021)The Subsea pipelines are subjected to high hoop stresses due to the hydrostatic pressure. When the internal pressure of the liquid has a higher value than the external hydrostatic one, there is a balance of the tensile and ... -
Technical and Economic Feasibility Analysis of a Conceptual Subsea Freight Glider for CO2 Transportation
(Peer reviewed; Journal article, 2022-08)This study analyses the technical and economic aspects of a novel subsea freight glider (SFG). The SFG is an excellent replacement for tanker ships and submarine pipelines transporting liquefied CO2. The main aim of the ...