POWER March 2011 - 12

5. Stepping on the gas. E.ON in January opened its 417-MW
Malzenice gas and steam turbine power station in Slovakia's Trnava region,
near the nation's capital, Bratislava. The facility uses a Siemens Energy Fclass
gas turbine in a single-shaft design. Courtesy: Siemens Energy
Data in a recent report, which warns that " there remains a significant
concern that recovery could stall, inhibiting investments
in this sector. " However, it says the sector will be buoyed by
government mandates to curb greenhouse gases from coal-fired
power plants and the demand for higher efficiencies in the long
term. The European cogeneration equipment market in particular
is expected to see a surge from 2011 through 2020, when it is
expected to grow 7% and earn about US$5.7 billion.
Using Flue Gas to Mitigate Ocean
Acidification
Lab-scale experiments have shown that seawater and calcium
could effectively remove most of the carbon dioxide (CO2
) from
a natural gas power plant's flue gas stream. A large fraction of
the captured gas could then be converted into dissolved calcium
bicarbonate-which, pumped into the sea, could be beneficial to
the ocean's marine life, says a researcher representing both the
Lawrence Livermore National Laboratory's (LLNL's) Carbon Management
Program and the University of California, Santa Cruz.
The results mean that above-ground CO2
hydration and mineral
generator. Owner E.ON said that the plant's online versatility,
short start-up time, and fast load cycling would be important to
the region, whose economy is rapidly developing.
Gas is the dominant fuel in Slovakia, accounting for about
30% of primary energy demand. Gas is followed by oil at 23%,
coal at 22%, nuclear at 19%, and hydro at 6%.
The cogeneration market was hard hit in 2009 because of constrained
financing conditions, claims research company Global
carbonate scrubbing may provide a " relatively simple " point-source
CO2
capture and storage (CCS) system at coastal locations, reported
Greg Rau in the February 2011 issue of Environmental Science &
Technology. Rau, a senior scientist with the Institute of Marine
Sciences at UC Santa Cruz who also works at LLNL, says, " Such lowtech
CO2
mitigation could be especially relevant for retrofitting to
emissions. "
existing power plants and for deployment in the developing world,
the primary source of future CO2
Rau used a hollow, cylindrical Plexiglas reactor filled with beCIRCLE
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POWER March 2011

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POWER March 2011 - Cover2
POWER March 2011 - Contents
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