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From operator to entrepreneur: David Garcia applies outage management lessons
David Garcia
If ComEd’s Zion plant in northern Illinois hadn’t closed in 1998, David Garcia might still be there, where he got his start in nuclear power as an operator at age 24.
But in his ninth year working there, Zion closed, and Garcia moved on to a series of new roles—including at Wisconsin’s Point Beach plant, the corporate offices of Minnesota’s Xcel Energy, and on the supplier side at PaR Nuclear—into an on-the-job education that he augmented with degrees in business and divinity that he sought later in life.
Garcia started his own company—Waymaker Resource Group—in 2014. Recently, Waymaker has been supporting Holtec’s restart project at the Palisades plant with staffing and analysis. Palisades sits almost exactly due east of the fully decommissioned Zion site on the other side of Lake Michigan and is poised to operate again after what amounts to an extended outage of more than three years. Holtec also plans to build more reactors at the same site.
For Garcia, the takeaway is clear: “This industry is not going away. Nuclear power and the adjacent industries that support nuclear power—and clean energy, period—are going to be needed for decades upon decades.”
In July, Garcia talked with Nuclear News staff writer Susan Gallier about his career and what he has learned about running successful outages and other projects.
Masaaki Satake, Kazuhisa Yuki, Hidetoshi Hashizume
Fusion Science and Technology | Volume 52 | Number 4 | November 2007 | Pages 821-826
Technical Paper | Nuclear Analysis and Experiments | doi.org/10.13182/FST07-A1593
Articles are hosted by Taylor and Francis Online.
In a liquid blanket system, MHD effect or low heat-transfer property of high Prandtl number fluid makes it difficult to remove high heat load, therefore utilization of ducts with inserted rods or sphere-packed pipes has been proposed to enhance the heat transfer. It is important to reveal influence of arrangement of the rods or spheres upon the heat transfer characteristics. In this study, the influence of a distance between two rods in wall-normal and streamwise directions upon the flow structures is clarified by numerical simulation. When the rod is approaching to another rod in the wall-normal direction, Karman's vortex street is disrupted. On the other hand, the distance between the rod and the wall is shorter than a certain value, a separation occurs on the wall and then the separation position does not move when the distance is much smaller than that value. Moreover, the pressure drop depends on the distance between two rods, and then there exists the minimum pressure drop. When the distance between the two rods becomes shorter in the streamwise direction, the wake behind the upstream rod changes from Karman's vortex street to twin vortexes and the pressure drop decreases. The turbulent kinetic energy near the wall in case of Karman's vortex street, which is generated by the upstream rod, is higher than that in case of twin vortex.
