See below answers for Byron (Exelon)
-----Original Message----- From: respvr-bounces@retaqs.com [mailto:respvr-bounces@retaqs.com]On Behalf Of Delk, Whiting S. Sent: Thursday, May 18, 2006 7:09 AM To: respvr@retaqs.com Cc: Lemons, James F. Subject: [Respvr] Ramp rates with and with out leaking fuel assemblies
Please provide your PWR fuel duty limitations (both sound and leaking fuel, increasing and decreasing power, etc.).
No leaking Fuel/Start up after refueling:
0 - 40% no limit (15 %/hr is planned rate) 40 - 75% 3 %/hr 75 -100% 0.5 %/hr
Ramp rate up and Power break points at which ramp rate changs.
No leaking fuel Normal Operations:
0 - 40% no limit (15 %/hr is planned rate) 40 - 75% 3 %/hr 75 - 90% 2 %/hr 90 -100% 1 %/hr
Ramp rate down.
100 - 0% no limit (15 %/hr is planned rate)
Ramp rate (and break points) return to RTP.
see above
Restrictions on Ramp rates with Leaking Fuel:
Ramp rate down. DOWN 100 - 90% 3 %/hr 90 - 40% 10 %/hr 40 - 0% 15 %/hr
Ramp rate (and break points) return to RTP.
UP 0 - 20% 15 %/hr 20 - 40% 5 %/hr 40 - 75% 3 %/hr
75 - 90% 2 %/hr 90 -100% 1 %/hr
Thanks for your assistance. I will repackage and send to responders. Thanks for your valuable time.
Whiting S. Delk
Reactor Engineering Supervisor
Watts Bar Nuclear Plant
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