Power June 2007 Clean Energy Systems, Inc. - (Page 2) GENERATION TECHNOLOGY 3. Born again. CES purchased the idled Kimberlina biomass power plant and is using it to host an evaluation of its combustor’s durability. Courtesy: Clean Energy Systems Inc. 4. Maiden voyage. The combustor’s injection manifold is mounted on the 20-MW gas generator and fully connected to fuel, oxygen, and water piping on the test stand during the first operational run at Kimberlina. Courtesy: Clean Energy Systems Inc. of a laboratory-scale oxy-combustor. With the money, CES built a test bench and a labscale combustor and operated the latter at temperatures up to 2,700F and pressures up to 300 psia. The combustor ran reliably and stably on O2, methane (CH4), and water for up to 48 minutes following more than 75 starts. The successful demonstrations provided the “proof of principle” for producing clean, high-energy drive gases suitable for generating electricity. The experimental work was completed in January 2001; for more details, see the final CEC program report at www.energy.ca.gov/pier/final _project_reports/CEC-500-2006-074.html. In September 2000, the U.S. Department of Energy’s National Energy Technology Laboratory (NETL), under its Vision 21 program, began funding a CES effort to design, fabricate, and test a larger (20-MWt) combustor, fueled again by O2, CH4, and water. That unit (Figure 2) was tested during late 2002 and early 2003. The tests successfully demonstrated operation at temperatures ranging from as high as 3,000F to as low as 600F at pressures from 1,100 to 1,540 psia. The combustor operated successfully from 20% to 100% of its rated output during more than 95 tests. In early 2002, the CEC gave CES a much larger grant of $2 million to fabricate and demonstrate a natural gas–fired zero-emissions power plant based on CES’s oxycombustor. The goals of this project were to evaluate the durability of the combustor and to identify desirable design refinements. In August 2003, CES acquired the idled, 5MW Kimberlina biomass power plant near Bakersfield, Calif., from AES Corp. The CEC approved the use of this facility for the evaluation project in November 2003 and provided $2 million in supplemental funding in March 2004. After acquiring the Kimberlina plant, CES designed a complete control system for the 20-MWt combustor and integrated it into the unit. Kimberlina is reborn The Kimberlina facility (Figure 3) will provide the range of test and demonstration opportunities needed to facilitate commercialization of the CES technology and other oxy-fuel combustion systems. It is being developed in stages. Early on, Kimberlina served as a test facility for evaluating the durability and reliability of the oxy-combustor and to define the system design refinements called for by the CEC program (Figure 4). In the existing system, the turbine (Figure 5) is fed a mixture of 90% steam and 10% CO2. Its exhaust is routed to a geothermaltype condenser (Figure 6), which turns the steam to water and separates out the CO2. The first equipment that CES installed at Kimberlina comprised an oxygen supply system, a natural gas compressor, a high-pressure feedwater pump, a new condenser, and a liquid-ring vacuum pump. To reduce program costs, the processes of recovering CO2 and purifying it to a level suitable for commercial POWER June 2007 5. Alternatively fueled. The 5.7-MW gas generator/turbo-generator used at the Kimberlina test facility was built by Elliott Co. (www.elliott-turbo.com). The turbine is powered by a mixture of 90% steam and 10% CO2. Courtesy: Clean Energy Systems Inc. 2 | http://www.energy.ca.gov/pier/final http://www.elliott-turbo.com
Table of Contents Feed for the Digital Edition of Power June 2007 Clean Energy Systems, Inc. Power June 2007 Clean Energy Systems, Inc. Power June 2007 Clean Energy Systems, Inc. - (Page 1) Power June 2007 Clean Energy Systems, Inc. - (Page 2) Power June 2007 Clean Energy Systems, Inc. - (Page 3) Power June 2007 Clean Energy Systems, Inc. - (Page 4)
For optimal viewing of this digital publication, please enable JavaScript and then refresh the page. If you would like to try to load the digital publication without using Flash Player detection, please click here.