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Vermont Yankee expected back on line soon

first_imgAs of today, Vermont Yankee reports that the refueling and maintenance outage is in Day 24 and work activities continue to noticeably wind down. Work at the cooling towers involving the third (and final) phase of the cooling tower upgrades continue, and the safety-related section of the west tower is complete. Also complete is the replacement of service water piping to “A” Emergency Diesel Generator and the routine cleaning of the intake bays.VY completed leak testing of tubes in the main condenser through the use of specialized “dimple” plugs, designed to identify even the smallest of leaks.  The source of power for the outage was transferred to the main transformer.  This allowed the next phase of work on the new Vernon Substation to commence.Preparations for start up continue on the refuel floor. The reactor pressure vessel has been reassembled and is being pressure tested today. In conjunction with this test, control rods will be tested. Tomorrow, the Integrated Leak Rate Test of the primary containment will be started. The test involves pressurizing the primary containment and then measuring the leakage rate or pressure drop over a several hour period.The test of the Emergency Core Cooling System was successfully conducted on Sunday, and all of the Emergency Core Cooling Systems responded as expected, but an unanticipated action occurred during the test. The initiating conditions for the test set the water level higher than normal in the reactor vessel. When the test began and steam valves automatically realigned, some of the excess water (above the steam lines) drained through a steam line to the torus which contains a back up supply of cooling water and is located in the reactor building. According to VY, there were no safety consequences and the incident was not immediately reportable. Still, plant management has taken steps to ensure this is not repeated in future tests. VY has also shared the issue with other nuclear plants. The steam lines will be drained and verified free of moisture.Work on the soil remediation from the tritium leak continued through the outage and is on schedule to be completed in the coming weeks. The rerouting of steam trap piping from the Advanced Off Gas system is complete and the reachable areas of the AOG pipe tunnel have been cleaned.The final stage of the outage will be switching and valve alignment of plant systems from their maintenance mode to their normal operations mode, and conducting final tests in preparation for start up. Once the plant is phased back on the grid, it will take several days to achieve full power. The outage is not considered over until the plant reaches 100 percent power. The staff will continue to test and monitor plant systems during the power ascension.Source: Vermont Yankee. May 18, 2010last_img read more

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Kiplagat, Tuei Seek 4th Okpekpe Kenya Double

first_imgTomorrow in Okpekpe, Kiplagat and Tuei will hope to re-establish Kenyan dominance in the race.Kiplagat is one of the fastest men registered for the race this year following the 27 minutes, 52 seconds he ran to place third at the Laredo 10k in Spain.He will however have to get one over Ethiopia’s Amedework Walelegn who ran faster (27 minutes 37 seconds) at the Laredo race as well as compatriot, Simon Cheprot, the 2016 winner who wants to become the first man to win the Okpekpe titles twice.Another Kenyan, Josphat Kiprono Menjo may wind back the clock to surprise the pre-race favourites.He holds an eight-year old 27:04 personal best which makes him the fourth fastest man in the all-time list.His best so far this season is the 28:28 he ran to place fifth at the Valencia 10k race in January this year and he may have to go back in time for form if he hopes to become the fifth Kenyan man to win the title.For the women, Tuei, whose 30:57 run in Valencia in January makes her the unofficial fastest woman over the distance so far this year looks good to become the fifth Kenyan woman to run away with the title.The Kenyan will however be fiercely challenged by not only her compatriots including Polline Wanjiku, the 2016 winner who hopes to make history as the second woman to win an Okpekpe title but also by Ethiopia’s Jima Bekele Reta and Bahrain’s DamarisMuthee Mutua.Reta ran what would have been the second fastest time of all time (30:10) in Dubai in June 2017 and will now have an IAAF silver label road race to prove she can run faster and be officially recognised.Mutua has been active this season over the distance. She was fourth (34:22) in the Abu Dhabi 10 km last March and fifth in April at the Kenitra 10 km in Morocco with an improved time of 34:06.She may however need to run as fast her 32:22 personal best set way back in 1994 to have a chance of upstaging the Ethiopians and the Kenyans.Share this:FacebookRedditTwitterPrintPinterestEmailWhatsAppSkypeLinkedInTumblrPocketTelegram Kenyan duo of Ronoh Timothy Kiplagat and Sandrafelis Chebet Tuei will spearhead Kenya’s bid for a fourth double swoop of the top prize and titles on offer when the sixth IAAF silver label Okpekpe International 10km Road Race is flagged off tomorrow in Okpekpe near Auchi in Edo State.Last year Ethiopian duo of Leul Gebriesialse and Gabru Azemra won the men andwomen’s title respectively for the second time since the second edition of the race in 2014 when Teshome Asafan ran a new 28:36 seconds new course record and Wudey Ayalew also raced into a new 32:41 seconds course record to make it a double sweep.last_img read more