The Experts below are selected from a list of 252 Experts worldwide ranked by ideXlab platform
Amy L Brunsvold - One of the best experts on this subject based on the ideXlab platform.
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Benchmarking of CO2 transport technologies: Part I—Onshore Pipeline and shipping between two Onshore areas
International Journal of Greenhouse Gas Control, 2013Co-Authors: Simon Roussanaly, Erik Skontorp Hognes, Jana P. Jakobsen, Amy L BrunsvoldAbstract:Abstract This paper focuses on illustrating the CCS chain methodology and the functionality of two transport assessment modules developed within the BIGCCS Research Centre for Onshore Pipeline and shipping between Onshore areas. On the basis of these two modules, technical, costs and climate impact assessments of transport infrastructure and conditioning processes were assessed and compared for a base case. In this case study, Onshore Pipeline and CO2 shipping between two Onshore harbours are compared for different distances and capacities. As expected, for a given annual capacity, Onshore Pipeline transport should be used for “short” distances, while shipping between harbours is employed for longer distances. Regarding the distance at which the cost-optimal technology switches between the two options, the results show that higher annual capacity and volume would lead to a preference for Onshore Pipeline transport. The base case can be used as a guide to draw conclusions on particular case studies under the hypotheses presented in this paper. The results also appear to be consistent with the few papers that have compared Onshore Pipeline and shipping between harbours. Sensitivity analyses were used to address and quantify the impact of several important parameters on the choice of technology. The influences of the individual parameters were then ranked showing that the four most influent parameters on the technology choice are the geographical context, the regional effect of Pipeline costs, the First-Of-A-Kind effect, and the ownership effect. Additional work that focuses on transport between a coastal area and an offshore site using either an offshore Pipeline or shipping will be presented in Part II of this paper.
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benchmarking of co2 transport technologies part i Onshore Pipeline and shipping between two Onshore areas
International Journal of Greenhouse Gas Control, 2013Co-Authors: Simon Roussanaly, Erik Skontorp Hognes, Jana P. Jakobsen, Amy L BrunsvoldAbstract:Abstract This paper focuses on illustrating the CCS chain methodology and the functionality of two transport assessment modules developed within the BIGCCS Research Centre for Onshore Pipeline and shipping between Onshore areas. On the basis of these two modules, technical, costs and climate impact assessments of transport infrastructure and conditioning processes were assessed and compared for a base case. In this case study, Onshore Pipeline and CO2 shipping between two Onshore harbours are compared for different distances and capacities. As expected, for a given annual capacity, Onshore Pipeline transport should be used for “short” distances, while shipping between harbours is employed for longer distances. Regarding the distance at which the cost-optimal technology switches between the two options, the results show that higher annual capacity and volume would lead to a preference for Onshore Pipeline transport. The base case can be used as a guide to draw conclusions on particular case studies under the hypotheses presented in this paper. The results also appear to be consistent with the few papers that have compared Onshore Pipeline and shipping between harbours. Sensitivity analyses were used to address and quantify the impact of several important parameters on the choice of technology. The influences of the individual parameters were then ranked showing that the four most influent parameters on the technology choice are the geographical context, the regional effect of Pipeline costs, the First-Of-A-Kind effect, and the ownership effect. Additional work that focuses on transport between a coastal area and an offshore site using either an offshore Pipeline or shipping will be presented in Part II of this paper.
Simon Roussanaly - One of the best experts on this subject based on the ideXlab platform.
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Benchmarking of CO2 transport technologies: Part I—Onshore Pipeline and shipping between two Onshore areas
International Journal of Greenhouse Gas Control, 2013Co-Authors: Simon Roussanaly, Erik Skontorp Hognes, Jana P. Jakobsen, Amy L BrunsvoldAbstract:Abstract This paper focuses on illustrating the CCS chain methodology and the functionality of two transport assessment modules developed within the BIGCCS Research Centre for Onshore Pipeline and shipping between Onshore areas. On the basis of these two modules, technical, costs and climate impact assessments of transport infrastructure and conditioning processes were assessed and compared for a base case. In this case study, Onshore Pipeline and CO2 shipping between two Onshore harbours are compared for different distances and capacities. As expected, for a given annual capacity, Onshore Pipeline transport should be used for “short” distances, while shipping between harbours is employed for longer distances. Regarding the distance at which the cost-optimal technology switches between the two options, the results show that higher annual capacity and volume would lead to a preference for Onshore Pipeline transport. The base case can be used as a guide to draw conclusions on particular case studies under the hypotheses presented in this paper. The results also appear to be consistent with the few papers that have compared Onshore Pipeline and shipping between harbours. Sensitivity analyses were used to address and quantify the impact of several important parameters on the choice of technology. The influences of the individual parameters were then ranked showing that the four most influent parameters on the technology choice are the geographical context, the regional effect of Pipeline costs, the First-Of-A-Kind effect, and the ownership effect. Additional work that focuses on transport between a coastal area and an offshore site using either an offshore Pipeline or shipping will be presented in Part II of this paper.
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benchmarking of co2 transport technologies part i Onshore Pipeline and shipping between two Onshore areas
International Journal of Greenhouse Gas Control, 2013Co-Authors: Simon Roussanaly, Erik Skontorp Hognes, Jana P. Jakobsen, Amy L BrunsvoldAbstract:Abstract This paper focuses on illustrating the CCS chain methodology and the functionality of two transport assessment modules developed within the BIGCCS Research Centre for Onshore Pipeline and shipping between Onshore areas. On the basis of these two modules, technical, costs and climate impact assessments of transport infrastructure and conditioning processes were assessed and compared for a base case. In this case study, Onshore Pipeline and CO2 shipping between two Onshore harbours are compared for different distances and capacities. As expected, for a given annual capacity, Onshore Pipeline transport should be used for “short” distances, while shipping between harbours is employed for longer distances. Regarding the distance at which the cost-optimal technology switches between the two options, the results show that higher annual capacity and volume would lead to a preference for Onshore Pipeline transport. The base case can be used as a guide to draw conclusions on particular case studies under the hypotheses presented in this paper. The results also appear to be consistent with the few papers that have compared Onshore Pipeline and shipping between harbours. Sensitivity analyses were used to address and quantify the impact of several important parameters on the choice of technology. The influences of the individual parameters were then ranked showing that the four most influent parameters on the technology choice are the geographical context, the regional effect of Pipeline costs, the First-Of-A-Kind effect, and the ownership effect. Additional work that focuses on transport between a coastal area and an offshore site using either an offshore Pipeline or shipping will be presented in Part II of this paper.
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Costs benchmark of CO2 transport technologies for a group of various size industries
International Journal of Greenhouse Gas Control, 2013Co-Authors: Simon Roussanaly, Gaelle Bureau-cauchois, Jo HusebyeAbstract:Abstract This paper summarizes key results from the Collaborative COCATE Project for the European Commission (FP7). The costs of transporting a total of 13.1 MtCO 2 /y from small- to large-scale emitters around Le Havre (France), to Rotterdam (Netherlands) via Onshore Pipeline or shipping are evaluated. Sources send emissions to five CO 2 capture centres, which are then linked via a 40 km long collection network to deliver the treated CO 2 to the point of export. This network was designed to accommodate peak flow rates and multiple network designs were considered for the various export scenarios evaluated in the study. The economic evaluation established that conditioning CO 2 at the cluster level, rather than at the point of export, and transporting it in dense phase was the most cost-effective solution for both export systems. As for exporting the CO 2 from Le Havre to Rotterdam, the evaluation highlighted three potential transport solutions: either Onshore via one 24 in. or one 28 in. diameter Pipeline or offshore using three ships with effective capacities of 30,000 m 3 each. The Onshore Pipeline options proved to be 10% cheaper than the shipping scenario. Sensitivity analyses confirmed that the Onshore options remained the best choice.
Joe Kondo - One of the best experts on this subject based on the ideXlab platform.
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Girth Weld Strength Matching Effect on Tensile Strain Capacity of Grade X70 High Strain Line Pipe
Volume 2: Pipeline Safety Management Systems; Project Management Design Construction and Environmental Issues; Strain Based Design; Risk and Reliabili, 2018Co-Authors: Hisakazu Tajika, Takahiro Sakimoto, Tsunehisa Handa, Rinsei Ikeda, Joe KondoAbstract:Recently high grade Pipeline project have been planned in hostile environment like landslide in mountain area, liquefaction in reclaimed land or the frost heave in Polar Regions. Geohazards bring large scale ground deformation and effect on the varied Pipeline to cause large deformation. Therefore, strain capacity is important for the Pipeline and strain based design is also needed to keep gas transportation project in safe. High grade steel pipe for linepipe tends to have higher yield to tensile (Y/T) ratio and it has been investigated that the lower Y/T ratio of the material improves strain capacity in buckling and tensile limit state. In Onshore Pipeline project, pipe usually transported in 12 or 18m each and jointed in the field. Girth weld (GW) is indispensable so strength matching of girth weld towards pipe body is important. In this study strain capacity of Grade X70 high strain pipes with size of 36″ OD and 23mm WT was investigated with two types of experiments, which are full scale pipe bending tests and curved wide plate tests. The length of the specimen of full scale bending tests were approximately 8m and girth weld was made in the middle of joint length. A fixed internal pressure was applied during the bending test. Actual pipe situation in work was simulated and both circumferential and longitudinal stress occurred in this test. Test pipes were cut and welded, GTAW in first two layer and then finished by GMAW. In one pipe, YS-TS over-matching girth weld (OVM) joint was prepared considering the pipe body grade. For the other pipe, intentionally under-matching girth weld (UDM) joint was prepared. After the girth welding, elliptical EDM notch were installed in the GW HAZ as simulated weld defect. In both pipe bending tests, the buckling occurred in the pipe body at approximately 300mm apart from the GW and after that, deformation concentrated to buckling wrinkle. Test pipe breaking locations were different in the two tests. In OVM, tensile rupture occurred in pipe body on the backside of buckling wrinkle. In UDM, tensile rupture occurred from notch in the HAZ. In CWP test, breaking location was the HAZ notch. There were significant differences in CTOD growth in HAZ notch in these tests.
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Strain Capacity Investigation on Grade X70 High Strain Line Pipe With Girth Weld
Volume 6B: Materials and Fabrication, 2018Co-Authors: Hisakazu Tajika, Takahiro Sakimoto, Tsunehisa Handa, Rinsei Ikeda, Joe KondoAbstract:Recently high grade Pipeline project have been planned in hostile environment like landslide in mountain area, liquefaction in reclaimed land or the frost heave in Polar Regions. Geohazards bring large scale ground deformation and effect on the varied Pipeline to cause large deformation. Therefore, strain capacity is important for the Pipeline and strain based design is also needed to keep gas transportation project in safe. High grade steel pipe for linepipe tends to have higher yield to tensile (Y/T) ratio and it has been investigated that the lower Y/T ratio of the material improves strain capacity in buckling and tensile limit state. In Onshore Pipeline project, pipe usually transported in 12 or 18m each and jointed in the field. Girth weld (GW) is indispensable so strength matching of girth weld towards pipe body is important. In this study strain capacity of Grade X70 high strain pipe with size of 36” OD and 23mm WT was investigated with two types of experiments. One was a pipe bending test with whole pipe. The length of the specimen was approximately 8m and GW was made in the middle of joint length. A fixed internal pressure was applied during the bending test. Actual pipe situation in work was simulated and both circumferential and longitudinal stress occurred in this test. The other test was curved wide plate (CWP) test. In both tests, test pipes were cut and welded using GTAW in the first two layers and GMAW for the subsequent passes. Welding wire of TG-S62 and MG-S58P were used for GTAW and GMAW respectively to achieve over-matching girth weld considering the pipe body strength. Elliptical EDM notch was installed in the GW HAZ as simulated weld defect. In pipe bending test, buckling occurred at the intrados at 300 mm apart from the GW. 2D average compressive strain at buckling was 3.59% and this high compressive strain was considered to derive from the high strain capacity of this pipes. After the buckling, deformation concentrated to the buckling wrinkle. Test pipe broke at 35.5 degrees of pipe end rotation and the location was in base metal at the extrados opposite to the buckling wrinkle. The HAZ notch opened and CTOD was 1.44 mm and the global strain in 2D length average strain was 7.8%. In CWP test, tensile strain simply got large and pipe finally broke at global strain of 9.6% and CTOD of 15 mm. The break location was the HAZ notch. There was a significant difference in CTOD growth in HAZ between two test types. Conditions and factors that effect to these differences are argued in this paper.
Genserik Reniers - One of the best experts on this subject based on the ideXlab platform.
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risk assessment of the maintenance process for Onshore oil and gas transmission Pipelines under uncertainty
Reliability Engineering & System Safety, 2018Co-Authors: Xuchao Yu, Wei Liang, Laibin Zhang, Genserik Reniers, Linlin LuAbstract:Abstract Research on risk assessment of the maintenance process for Onshore oil and gas transmission Pipelines has been attracting ever more attention from the academic community. Due to the existence of uncertainties, risk propagation can hardly be precisely and/or robustly assessed. Therefore, in this paper, considering that decision-makers prefer uncertainty-informed risk information rather than unreliable “precise” risk values, a new insight is provided to deal with risk assessment of the Onshore Pipeline maintenance process under uncertainty. The risk assessment model is built on the framework of quantitative risk assessment based on AHP and expert knowledge. Meanwhile, to represent and quantify uncertainty, interval analysis is utilized to extend the whole model into an interval environment. As a result, an interval quantified risk assessment model is established for the Onshore Pipeline maintenance process. The study shows that interval analysis can effectively internalize, represent, quantify and propagate the uncertainty in the risk assessment model. In the specific case of emergency maintenance for the Gangqing dual Pipeline, the interval scores to respectively characterize the occurrence likelihood and consequence severity are computed. As a result, the uncertainty-informed overall risk of the emergency maintenance process is determined and intuitively pinpointed in an interval risk matrix. The risk rating of the case is estimated as Level 2, indicating that operations with respect to emergency maintenance are well organized and the possibility of accident occurrence is low. Thus, maintenance can be carried out well under supervision. Even if a secondary accident would occur, the accident scope will be quite small and emergency measures are adequate enough to control the development of the accident and reduce accident losses. Moreover, the sensitivity sorting of sub-indexes of occurrence likelihood is obtained as I11 > I23 > I13 > I22 > I34 > I12 > I33 > I21 > I31 > I32, indicating that improvement in the management capacity (I11), normal operations (I13) and completeness of protection (I22) will effectively reduce the occurrence of accidents and improve operational safety. Furthermore, risk estimation under the condition of missing data is tackled by using Monte Carlo simulations and provides a reasonable option when crucial information is lacking.
Xuchao Yu - One of the best experts on this subject based on the ideXlab platform.
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risk assessment of the maintenance process for Onshore oil and gas transmission Pipelines under uncertainty
Reliability Engineering & System Safety, 2018Co-Authors: Xuchao Yu, Wei Liang, Laibin Zhang, Genserik Reniers, Linlin LuAbstract:Abstract Research on risk assessment of the maintenance process for Onshore oil and gas transmission Pipelines has been attracting ever more attention from the academic community. Due to the existence of uncertainties, risk propagation can hardly be precisely and/or robustly assessed. Therefore, in this paper, considering that decision-makers prefer uncertainty-informed risk information rather than unreliable “precise” risk values, a new insight is provided to deal with risk assessment of the Onshore Pipeline maintenance process under uncertainty. The risk assessment model is built on the framework of quantitative risk assessment based on AHP and expert knowledge. Meanwhile, to represent and quantify uncertainty, interval analysis is utilized to extend the whole model into an interval environment. As a result, an interval quantified risk assessment model is established for the Onshore Pipeline maintenance process. The study shows that interval analysis can effectively internalize, represent, quantify and propagate the uncertainty in the risk assessment model. In the specific case of emergency maintenance for the Gangqing dual Pipeline, the interval scores to respectively characterize the occurrence likelihood and consequence severity are computed. As a result, the uncertainty-informed overall risk of the emergency maintenance process is determined and intuitively pinpointed in an interval risk matrix. The risk rating of the case is estimated as Level 2, indicating that operations with respect to emergency maintenance are well organized and the possibility of accident occurrence is low. Thus, maintenance can be carried out well under supervision. Even if a secondary accident would occur, the accident scope will be quite small and emergency measures are adequate enough to control the development of the accident and reduce accident losses. Moreover, the sensitivity sorting of sub-indexes of occurrence likelihood is obtained as I11 > I23 > I13 > I22 > I34 > I12 > I33 > I21 > I31 > I32, indicating that improvement in the management capacity (I11), normal operations (I13) and completeness of protection (I22) will effectively reduce the occurrence of accidents and improve operational safety. Furthermore, risk estimation under the condition of missing data is tackled by using Monte Carlo simulations and provides a reasonable option when crucial information is lacking.
