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Partner Content
Casing/ Shell Weld Repairs & Re-Rounding
Sponsored by:For many years, the OEM fix for major cracking or shell distortion was replacement of the defective shell, also referred to as casing by some OEMs, with new. Mechanical Dynamics and Analysis has provided an alternative to shell replacements which includes fixing the existing shell to extend its life. MD&A recently welded and repaired the HPIP […]
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Partner Content
The Control of Two-Phase Flow-Accelerated Corrosion
Sponsored by:Flow-accelerated or flow-assisted corrosion (FAC) is the uncontrolled dissolution and transportation of iron oxides in a steam-water cycle system that occurs in both single-phase locations (water) and two-phase locations (water and steam). Single-phase FAC can be mitigated by chemical controls, but two-phase FAC remains largely unaddressed by industry’s available product options due to the challenging nature […]
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Partner Content
Field Rewind with a Rotor Slot Dovetail Repair
Sponsored by:Mechanical Dynamics & Analysis (MD&A) recently completed generator field rewind with a rotor slot dovetail repair on a customer’s GE® 650,000 KVA generator field. The work scope was performed at the customer’s direction with regards to applicable Technical Information Letters. Incoming visual and mechanical inspections were first completed, as well as a runout inspection in the lathe which […]
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O&M
Understanding PAG- and PAO-Based Lubricants
Polyalkylene glycol (PAG) and polyalphaolefin (PAO) are two synthetic lubricant options for industrial applications. Understanding the advantages and disadvantages of each can help end-users decide which option is best for a given application. Why Synthetic Lubricants? According to analysis conducted by Kline & Co., more than 78% of all lubricant requirements in the world annually […]
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Microgrid
A Look at the Year Ahead and How Microgrids Are Shaping the Power Industry
2020 was a transformative year for the power sector, underlining both new challenges and potential opportunities. We not only saw how severe weather event threats, such as the wildfires and public safety power shutoffs in California, continued to illustrate the fragility of our existing centralized electric distribution system, but we simultaneously experienced the struggle of […]
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O&M
Welding Method 7 Approved, Fitness for Service Project Launched
Welding Method 7 (WM7), which was supported by an extensive set of research experiments led by the Electric Power Research Institute (EPRI), was approved in March 2020 by the National Board Inspection Code
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Research and Development
Forging Materials with the ‘Right Stuff’ for Tomorrow’s Energy Systems
One of the National Energy Technology Laboratory’s (NETL’s) key initiatives aims to bridge the gap in research infrastructure and accelerate advanced alloy development and manufacturing. Materials are
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Water
The Steam Cycle Mechanical Relationship to Chemistry and Its Influence on Heat Rate and Reliability
It is well-known that a conventional boiler or heat recovery steam generator (HRSG) and related steam turbine have innumerable pieces all working in conjunction to produce the end product of electric power. In
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Energy Storage
Zinc-ion Batteries Are a Scalable Alternative to Lithium-ion
Lithium-ion batteries are the most popular battery storage option today, controlling more than 90% of the global grid battery storage market, according to some estimates. However, the lithium-ion supply chain
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Legal & Regulatory
The Power Purchase Agreement in Transition
The power purchase agreement, commonly called a PPA, is a fundamental element to the development, construction, and financing of power generation projects. Like many things in the power industry, the PPA is
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