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THE VIDEO SHELF · fusion reactor heat exhaust

International Colloquia #26: Fusion Reactor First Wall Cooling

An MIT colloquium by Dennis Whyte on power exhaust and first-wall cooling in fusion reactors, including recent innovations and the SPARC and ARC designs.

Why HN readers recommended it

Recommended for realistic engineering detail on extracting heat from a tokamak.

This is a summary from the source dataset, not an endorsement by Hacker News or the video creator.

Video & recommendation details

Creator / channel
MIT MechE Lectures & Colloquia
Topic
fusion reactor heat exhaust
Format
lecture
Level
advanced
HN recommenders in dataset
2
HN mentions in dataset
4
Recommendation years in dataset
2021–2026

These counts and years describe the included Hacker News records; they are not YouTube views or the video’s publication date.

From the original HN conversations

Excerpts from the recorded comments. Follow each source for the full comment and surrounding discussion.

  • I've seen various youtube videos from their employees and CEO. From what I remember, Dennis Whyte (head of the fusion lab at MIT and CFS cofounder) says you need about Q>5 at least, to make fusion economically viable. So that must mean Qplasma > 5. …

    vjaswal on Hacker News · 2021-10
    In The Truth About Nuclear Fusion Q Factors
  • For those interested not only in simplified energy balance of a fusion power plant as shown in Fusion Power Plant Simulator, but in more realistic engineering of heat extraction from a tokamak I recommend the following lecture by Dr. Dennis Whyte from MIT Plasma Science …

    leonidasrup on Hacker News · 2026-04
    In Fusion Power Plant Simulator

Summaries, classifications and recommendation records are from the HackerTube source dataset. Read about this library and its limitations.