Podcast
Questions and Answers
What is a challenge faced by Pebble Bed Reactors (PBRs)?
What is a challenge faced by Pebble Bed Reactors (PBRs)?
- Difficulty in handling fuel compacts
- Inability to account for variations in temperature and composition
- Limited coolant channels
- Lack of natural assemblies due to random arrangement of pebbles (correct)
What is important for fuel in PBRs to maintain?
What is important for fuel in PBRs to maintain?
- Resistance to fuel motion during earthquakes
- High levels of cesium accumulation
- Low levels of burnup monitoring
- Integrity and performance under harsh conditions (correct)
What are computed for spectral zones in PBRs?
What are computed for spectral zones in PBRs?
- Cross sections (correct)
- Fuel compacts
- Coolant channels
- Control rods
What does fuel handling in PBRs involve?
What does fuel handling in PBRs involve?
Why is monitoring of fuel burnup important in PBRs?
Why is monitoring of fuel burnup important in PBRs?
What can affect fuel performance and safety in TRISO fuel?
What can affect fuel performance and safety in TRISO fuel?
What can fuel motion during earthquakes cause in PBRs?
What can fuel motion during earthquakes cause in PBRs?
What type of fuel arrangement do prismatic block reactors use?
What type of fuel arrangement do prismatic block reactors use?
What is fuel reshuffling in prismatic block reactors used for?
What is fuel reshuffling in prismatic block reactors used for?
What does fuel handling in prismatic block reactors involve?
What does fuel handling in prismatic block reactors involve?
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Study Notes
- Pebble bed reactors lack natural assemblies due to random arrangement of pebbles
- Fuel in PBRs must maintain integrity and performance under harsh conditions
- Cross sections are computed for spectral zones to account for variations in temperature and composition
- Fuel handling in PBRs involves loading, unloading, and monitoring of fuel burnup
- Monitoring of fuel burnup is important for safe and efficient operation
- Cesium accumulation in TRISO fuel can affect fuel performance and safety
- Fuel motion during earthquakes in PBRs can cause pebbles to settle and require computational simulations to predict
- Prismatic block reactors use fuel compacts arranged in blocks with engineered coolant channels
- Fuel reshuffling is a strategy used in prismatic block reactors to optimize fuel utilization and maintain a balanced power profile
- Fuel handling in prismatic block reactors involves loading, reshuffling, and unloading of fuel compacts.
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