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Sodium-Cooled SMR Reactor Protection Systems: How Does the Interlock Logic Differ from a Light Water Reactor?
Prompted by the Doosan Enerbility-TerraPower sodium-cooled SMR equipment contract, an electrical engineer’s look at how SFR protection trip logic and instrumentation signals differ from those of a light water reactor.
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Microreactor vs SMR: When Does a Microreactor Win at Grid Load Following?
Prompted by ZiaCore’s high-temperature, low-power criticality, an electrical engineer compares when microreactors and SMRs win from a grid load-following perspective.
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IAEA ATLAS Launches Floating SMR Standardisation: A Grid Connection Safety Interlock Checklist
With the IAEA’s ATLAS project for floating SMRs and nuclear-powered ships under way, a grid connection safety interlock checklist for offshore platforms, from an electrical engineer’s view.
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Saeul Unit 3 Condensate Pipe Leak and Manual Reactor Shutdown: What Should Fill the Secondary Piping Interlock Gap?
Saeul Unit 3 was manually shut down during commissioning after a leak in condensate drain piping. How level and differential-pressure interlocks can cover secondary piping leaks that sit outside radiation monitoring.
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AP1000 vs APR1400: What Gains the Advantage in the U.S. Nuclear Market?
KEPCO E&C and Doosan Enerbility surged two days in a row on news that Korea and the U.S. are discussing building eight large reactors in the U.S. The AP1000’s fully passive cooling, the APR1400’s passive auxiliary feedwater system and their different U.S. track records, compared from an electrical engineer’s standpoint.
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Hanbit Unit 2’s 10-Month Shutdown vs Hatch’s Uninterrupted Operation: What Creates the Gap in Continued Operation Reviews
Hanbit Unit 2 stops for about 10 months because its design life expired before review ended; Hatch secured its licence 8-12 years early. The difference is institutional design, not equipment.
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PWR vs BWR: Where the Radiation Boundary Sits Decides Operations
PWR and BWR compared by where the radiation boundary sits, with decision criteria based on maintenance organization, power control, and supply chain.
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CANDU vs Light Water Reactors: Where the Cost of On-Power Refueling Lands
Natural uranium and on-power refueling weighed against spent fuel volume and fueling machine burden to show when CANDU or LWR comes out ahead.
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Nuclear Cogeneration for District Heating and Process Steam: Temperature and Distance Decide
Nuclear heat extraction framed as an electricity-for-heat exchange, with criteria on temperature, pipeline distance, and backup boilers.
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Where Nuclear Power Wins, Where It Doesn’t
Nuclear power is often framed as opposed to renewable energy, but in practice the two serve different roles as generation sources. The key question is whether output can be held steady regardless of weather.