[ RadSafe ] Tritium production in a nuke plant
kerrembaev at yahoo.com
Thu Apr 18 02:54:45 CDT 2013
Are there any refs for Candu?
They are definitely having biggest problem with tritium.
Candu's are of course not NRC jurisdiction.
--- On Wed, 4/17/13, Steve Schulin <steve.schulin at nuclear.com> wrote:
From: Steve Schulin <steve.schulin at nuclear.com>
Subject: Re: [ RadSafe ] Tritium production in a nuke plant
To: "The International Radiation Protection (Health Physics) Mailing List" <radsafe at health.phys.iit.edu>
Date: Wednesday, April 17, 2013, 9:16 PM
Hi Rahim -
* For 1,000 MWe LWRs, Eicholz (1976, Table 46) shows Maximum Expected Tritium Releases to the Coolant as 627 Ci/yr for PWR and 50 Ci/yr for BWR. Both BWRs and PWRs produce tritium via ternary fission. A 1,000-MWe unit using zircaloy clad fuel will release approximately 0.1% of the tritium from ternary fission to the coolant. That 0.1% works out to up to 40 Ci/yr. Both BWRs and PWRs also produce tritium via Deuterium reaction. That accounts for 10 Ci/yr. But PWRs have two unique tritium sources: neutron capture reactions in soluble boron and lithium. Those account for the higher PWR value. Most of the tritium in the coolant will appear in the plant's liquid effluent
Source: Geoffrey G. Eicholz, ENVRONMENTAL ASPECTS OF NUCLEAR POWER, 1976, pp. 176-177, 326
* In 2003, the average PWR released about 700 curies of tritium in liquid effluents and the average BWR released about 30 curies of tritium in liquid effluents.
Source: NRC.gov, "Frequently Asked Questions About Liquid Radioactive Releases" -- http://www.nrc.gov/reactors/operating/ops-experience/tritium/faqs.html
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On Apr 17, 2013, at 3:44 PM, Rahim Ghanooni wrote:
> I am looking for a equation/method/documentation/publication to calculate
> the Tritium production in a typical nuke plant.
> Feel free to contact me directly.
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