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Canada’s existing natural gas pipeline network is being considered to help store and distribute high pressure hydrogen, when blended with natural gas, to support transition to the hydrogen economy. The importance of this topic to Canada is well document in the Federal Government’s call to action “Hydrogen Strategy for Canada”, which includes benefits such as: (i) positioning Canada to become a worlding-leading supplier of hydrogen technologies, (ii) employing hydrogen as a key enabler to reach net-zero emissions by 2050, and (iii) generating more than 350,000 high paying jobs, including unique opportunities for indigenous communities and businesses.
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A unique project was completed in Mid-2014 at the Powerhouse #3, Turbine Unit #23 refurbishment, Grand Coulee Dam, located in Washington State. The project scope includes a complete overhaul of the turbine bearings, windings, and critical components. As part of the overall scope, the contractor was charged with the task of coating the entire draft tube surface with an epoxy gel. The Bureau of Reclamation, based in Denver, Colorado, had conducted a site survey which indicated severe wear lines, which result in cavitation and the accompanying backpressure on the exiting water outflow to the Columbia River.
Often when a polymeric flooring system fails, the cause of the problem is unknown. Forensic testing is used to determine the cause of failure while eliminating other potential causes. A basic understanding of the approach to a forensic investigation and the types of testing used will help aid in correcting the problem so future failures and project costs are reduced.
The Federal Highway Administration has a top-level technology goal targeted toward the development and deployment of the “Bridge of the Future.” This is a conceptual short span bridge that demonstrates significant improvements over the current state of the practice – particularly with regard to ease and speed of construction and long-term durability.