1 / 10

Fusion Energy – FAQ Seppo Karttunen – personal views

Fusion Energy – FAQ Seppo Karttunen – personal views. Is fusion safe ? Radioactive waste in fusion ? Some further remarks Fusion versus fission Cost of fusion energy ? F usion energy – when ?. Is fusion safe ?. Yes , fusion is inherently safe - no power runaway ,

ursa
Télécharger la présentation

Fusion Energy – FAQ Seppo Karttunen – personal views

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Fusion Energy – FAQ Seppo Karttunen – personalviews • Is fusionsafe? • Radioactivewaste in fusion? • Somefurtherremarks • Fusionversus fission • Cost of fusionenergy? • Fusionenergy – when?

  2. Is fusionsafe? • Yes, fusion is inherentlysafe- no powerrunaway, • lowafter-heat, no greenhousegasemissions, just He • but ….. • Tritium issues- T-breeding, fuelcycle & T-handling- T contamination, dust- T cleaning- neutronactivation • Magnets, powersources, … Seppo Karttunen, "Fusion Energy - FQA", Euratom-Tekes Annual Seminar 2012, Tartu, Estonia

  3. Radioactivewaste in fusion? • Fusionprocessdoesnotproduceradioactivity- He is stable- Fusionneutronsmayactivatein-vesselmaterials- hugeamount of waste (activatedstructures) • Waste issue is notinherent for fusionbutrather a materialquestion • - ITER grade SS is horrible- Eurofer and ODS SS development for DEMO- SS recyclingtime 100 – 1000 years ??? Seppo Karttunen, "Fusion Energy - FQA", Euratom-Tekes Annual Seminar 2012, Tartu, Estonia

  4. Somefurtherremarks • Structuralmaterials – a though mission- 150 dpa (ITER ~ a fewdpa, DEMO ~ 50 dpa)- He production -> swelling (> 5 MeVneutrons)- low /shortlivedactivation – recyclingafter 100 y • Helium is notforever!- Helium for SC magnetsextractedfromnaturalgas- Gas is notforever, butrather for next 50-100 y- Development of hightemperature SC magnetsneeded Seppo Karttunen, "Fusion Energy - FQA", Euratom-Tekes Annual Seminar 2012, Tartu, Estonia

  5. Neutronloading Seppo Karttunen, "Fusion Energy - FQA", Euratom-Tekes Annual Seminar 2012, Tartu, Estonia

  6. Fusionversus Fission Verymuch a national issue - In Germany fusioncommunitywants to make a cleardifferencebetweenfusion and fission - ”plasma” fusionratherthan ”nuclear” fusion- for greensbothfusion and fission arebad- In France (Finland) wetry to support fission as a goodCarbonfreeenergy option- Fusion is the ultimateform of nuclearenergywhichreplaces fission gradually in next 100-200years- fusionversusbreedersmaybe an issue Seppo Karttunen, "Fusion Energy - FQA", Euratom-Tekes Annual Seminar 2012, Tartu, Estonia

  7. Cost of fusionenergy? • Definitelymoreexpensivethanpresentfossilfuels and nuclearbutlikelycheaperthansolarelectricity • High capital costmaypose a problem • Cost of fusionenergyverysensitive to availability • Energy marketsafter 2050 is probablyverydifferentfrom the currentsituation as fossilfuelsareexhausting and gettingmoreexpensive • Fusionmaywellbecompetative Seppo Karttunen, "Fusion Energy - FQA", Euratom-Tekes Annual Seminar 2012, Tartu, Estonia

  8. Fusionenergy - when? • ”Famous 50 years” • Three scenarios: disaster, pessimistic and optimistic • Disaster: ITER fails, fusionresearchreturnsback to Universities to look for alternativeapproaches • Pessimistic:ITER meetsitsgoalsbutdelays, DEMO startoperationlate 2050s producingsomeelectricity • Optimistic: ITER meetsitsobjectives in schedule, DEMO startsearly 2040s with electricitylate 2040s. • Commercial fusionearliest 15-20 yearsafter DEMO success. Seppo Karttunen, "Fusion Energy - FQA", Euratom-Tekes Annual Seminar 2012, Tartu, Estonia

  9. LevArtsimovich: "When the mankind needs it – or maybe a short time before that." Seppo Karttunen, "Fusion Energy - FQA", Euratom-Tekes Annual Seminar 2012, Tartu, Estonia

  10. Seppo Karttunen, "Fusion Energy - FQA", Euratom-Tekes Annual Seminar 2012, Tartu, Estonia

More Related