Nuclear

Exelon Nuclear recently replaced the original motor-generator sets for its boiling water reactor (BWR) recirculation pumps at its Quad Cities Generating Station Unit 1 with adjustable-speed drives. We examine the actual energy savings, motor-starting characteristics, control accuracy and stability, and motor and cable thermal behavior of this retrofit project.

Atomstroyexport, the Russian Federation’s nuclear power equipment and services export monopoly, in September signed a US$1.8 billion contract with the Chinese government for development of the second stage of the Tianwan nuclear power plant in Lianyungang City. Under the agreement, Units 3 and 4 are to be built in a way similar to construction of the first stage of Tianwan—two Russian-designed VVER-1000 reactors that came online in 2007, each with a rated capacity of 1,060 MW.

The first unit of Ling Ao phase II (Unit 3) in Guangdong Province, China, entered commercial operation in late September. The 1,080-MW reactor is the first CPR-1000—a Chinese design—to be built, and its start-up marks a major milestone in the country’s concerted nuclear power expansion.

The U.S. Nuclear Regulatory Commission (NRC) approved an updated “waste confidence” rule in mid-September that reflects the agency’s confidence that spent nuclear fuel (SNF) can be safely stored for at least 60 years beyond the closing date of any U.S. nuclear plant. Approval of this rule was required before the NRC can license any new reactors that will be required to store SNF on site indefinitely.

EPRI recently issued a handbook on nuclear spent fuel storage that examines regulatory trends affecting used fuel storage, describes available dry storage technologies, reviews planning considerations for spent fuel storage installations, and discusses technical issues affecting dry storage.

Thirty-six years after work first began at the 1,600-acre site housing the Bellefonte Nuclear Power Plant in Hollywood, Ala., the Tennessee Valley Authority (TVA) in August said it plans to invest $248 million to maintain the option to complete the 1,260-MW Unit 1 reactor. The announcement was made as the nation’s largest publically owned utility […]

India in August began building two 700-MW indigenous nuclear power reactors at Rawatbhatta, in the desert state of Rajasthan. The two pressurized heavy water reactors (PHWRs), which will use uranium as fuel and heavy water as both moderator and coolant, are the largest to be built by the central government–run Nuclear Power Corp. of India […]

Nearly a quarter-century after the Chernobyl nuclear power station disaster in Soviet Ukraine, Russia has been making deals with energy-starved nations all over the globe to help them build new nuclear power plants using Russian second-generation reactor technology.

This June, AREVA installed the reactor pressure vessel (Figure 6)—the core of the unit—at the world’s first EPR project, which is under construction in Finland. Now the company will engage in a flurry of installation activities for heavy nuclear components, including lifting into the reactor the first of the four steam generators. Most of the work is expected to be completed by the end of 2012, with power production beginning in 2013.

The refurbishment and restart of all four CANDU reactors at Bruce A may be Ontario’s most significant and complex power generation project since the first phase of the Bruce Nuclear Generating Station was built more than 30 years ago. Units 1 and 2 are expected to be synchronized in 2011 and return to commercial service by early 2012, joining Units 3 and 4, which restarted in 2004 and 2003 respectively. POWER visited Bruce A in April to witness the project’s progress.