Candu Reactor:
- CANDU reactor developed in Canada is a type of reactor which is used for the
generation of electricity. This reactor is now being used all around the world in nuclear
power plants. CANDU is a short form of Canadian Deuterium Uranium. Deuterium or
heavy water is used in this reactor as the reactor’s neutron moderator. This reactor uses
Uranium as a fuel which makes this reactor special. This reactor provides almost 15
percent of electricity to Canada.
- In a CANDU reactor, the high pressure coolant and fuel is contained in several hundred
small diameter horizontal channels (Fuel Channels)
- The Fuel Channels are insulated from the moderator by the gas in the annulus formed
between the pressure tube and the concentric calandria tube
- The calandria tubes are part of the calandria vessel pressure boundary that is the
container for the low pressure, low temperature, heavy water moderator.
- Any local failure of the moderator boundary will not result in the failure of the reactor
coolant system boundary
Components
− Pressure tube
− End fittings with liner tube
Joint between pressure tube and end fitting
− Shield Plug
− Spacers in annulus between pressure tube and calandria tube
− Calandria tube (not part of the fuel channel pressure boundary)
https://www.nrc.gov/docs/ML0300/ML030020132.pdf
https://nuclearsafety.gc.ca/eng/resources/fact-sheets/pressure-tubes.cfm
https://www.snclavalin.com/~/media/Files/S/SNC-Lavalin/download-centre/en/
brochure/our-candu-smr_en.pdf
http://www.energybc.ca/cache/nuclear/www.candu.org/candu_reactors.html
http://nuclearsafety.gc.ca/eng/reactors/power-plants/nuclear-power-plant-safety-
systems/index.cfm#:~:text=CANDU%20reactors%20produce%20electricity
%20through,in%20more%20radiation%20and%20heat.
https://www.nuclearfaq.ca/cnf_sectionA.htm
https://cna.ca/reactors-and-smrs/how-a-nuclear-reactorworks/
https://www.youtube.com/watch?v=qzmZ2VN-dBU
https://www.world-nuclear.org/getmedia/80f869be-32c8-46e7-802d-eb4452939ec5/
Pocket-Guide-Reactors.pdf.aspx
https://www.snclavalin.com/~/media/Files/S/SNC-Lavalin/documents/enhanced-candu-
6-technical-summary-en.pdf
https://www.nrc.gov/docs/ML0300/ML030020086.pdf
https://www-pub.iaea.org/mtcd/publications/pdf/te_1197_prn.pdf
https://pubs.cnl.ca/doi/full/10.12943/CNR.2020.00003
https://inis.iaea.org/collection/NCLCollectionStore/_Public/48/103/48103671.pdf
https://altairuniversity.com/wp-content/uploads/2014/02/meshing.pdf
