Reference number : GC-2017-Q1-00541, amendment number : , agreement type : G, recipient legal name : Goldak, John (Carleton University), recipient country : CA, recipient province : nan, recipient city : Ontario, recipient postal code : nan, program name english : Engage Plus Grants for Universities, program name french : Subvention d'engagement partenarial Plus pour les universités, program purpose english : Hot tap connections of pipelines enable a new pipeline to be connected to an operating pipeline_x000D_
without shutting down the operating pipeline. Since a pipeline can cost hundreds of millions of dollars or more,_x000D_
avoiding the lost income that would be incurred by a shut down is valuable to TcCPL. Although the technology_x000D_
do this for connecting smaller diameter pipes to larger diameter pipes exists, this research will develop state of_x000D_
the art computer models to optimize this technology, to assess the robustness of their designs or to extend this_x000D_
technology to connect pipes of nearly equal diameter._x000D_
Welding is a very complex process that involves the complete material processing from melting to_x000D_
solidification and shaping the finished product in a weld pool of roughly 1 cm^3 in times of roughly 1 second._x000D_
The microstructure controls the weld properties. The convection coefficient that controls the flow heat through_x000D_
the pipe wall from the weld on the external wall of the pipe and the gas temperature control the cooling rate of_x000D_
the weld and weld heat-affected zone microstructure in low-alloy steels. This is particularly important in older_x000D_
pipe steels that have higher carbon levels and ferrite-pearalite microstructure. Weld defects such as porosity_x000D_
and cracks can be important. Optimizing the design and control of the process to produce the best welds is an_x000D_
important challenge. Optimizing the design of a pipe line, including hot tap connections including the design_x000D_
and fabrication of the hot tap is an equally important challenge., program purpose french : Hot tap connections of pipelines enable a new pipeline to be connected to an operating pipeline_x000D_
without shutting down the operating pipeline. Since a pipeline can cost hundreds of millions of dollars or more,_x000D_
avoiding the lost income that would be incurred by a shut down is valuable to TcCPL. Although the technology_x000D_
do this for connecting smaller diameter pipes to larger diameter pipes exists, this research will develop state of_x000D_
the art computer models to optimize this technology, to assess the robustness of their designs or to extend this_x000D_
technology to connect pipes of nearly equal diameter._x000D_
Welding is a very complex process that involves the complete material processing from melting to_x000D_
solidification and shaping the finished product in a weld pool of roughly 1 cm^3 in times of roughly 1 second._x000D_
The microstructure controls the weld properties. The convection coefficient that controls the flow heat through_x000D_
the pipe wall from the weld on the external wall of the pipe and the gas temperature control the cooling rate of_x000D_
the weld and weld heat-affected zone microstructure in low-alloy steels. This is particularly important in older_x000D_
pipe steels that have higher carbon levels and ferrite-pearalite microstructure. Weld defects such as porosity_x000D_
and cracks can be important. Optimizing the design and control of the process to produce the best welds is an_x000D_
important challenge. Optimizing the design of a pipe line, including hot tap connections including the design_x000D_
and fabrication of the hot tap is an equally important challenge., agreement title english : TCPL - Hot Tap Connections II, agreement title french : TCPL - Hot Tap Connections II, agreement number : EGP2, agreement value : 12500.0, agreement start date : 2017-04-25, agreement end date : nan, description english : nan, description french : nan, expected results english : nan, expected results french : nan, additional information english : Grant or Award spanning more than one fiscal year. (2017-2018 to 2018-2019), additional information french : Subvention ou bourse octroyée s'appliquant à plus d'un exercice financier. (2017-2018 à 2018-2019), owner organization : nserc-crsng, owner organization title : Natural Sciences and Engineering Research Council of Canada | Conseil de recherches en sciences naturelles et en génie du Canada