In this work; the long-term wind power density at a candidate site is estimated through the use of a Measure-Correlate-Predict (MCP) algorithm and an Artificial Neural Network model (ANN). To evaluate the accuracy of the estimations different metrics are used; with a comparison of the results obtained for each of them.
Due to the increasingly stringent environmental regulations placed on the power generation industry, new methods of generating power utilising the abundant availability of coal are being developed. Included in this development is the Power Systems Development Facility's (PSDF) processes of applying pressurised combustion and gasification to increase efficiency while eliminating many of the environmentally unfriendly emissions. As with any combustion process, the measurement of oxygen in the flue gas is vitally important. The availability of the zirconium oxide in-situ oxygen analyser several years ago was a welcome change to those who had tried to maintain a real-time, accurate flue gas oxygen measurement. The zirconium oxide in-situ oxygen analyser is now the chosen method for measuring flue gas oxygen at virtually all power boiler outlets. During the detail design stages of the PSDF in the early 1990s, an in-situ oxygen analyser could not be found that would operate at the required combustor pressures of 150–300 psig. Recently, following numerous inquiries of various vendors around the world, a vendor was found who has developed a sensor that will act as a pressure boundary to 170 psig and an electronics unit that will accept a 4–20 mA input from a pressure transmitter for oxygen partial pressure compensation. This analyser has been successfully tested in the combustor outlet of the PSDF at a process pressure of 130 psig. The performance of the analyser is presented.
As part of the DOE supported TRW coal-fired MHD combustor development project, a test program was initiated to investigate what changes would be needed to operate the ''high preheat'' 20 MW /SUB t/ combustor at low air inlet preheat conditions. This paper presents the results of this test program with emphasis on describing the low preheat combustor concepts that were considered, the specific configuration that was selected for fabrication and the results from testing the 20 MW /SUB t/ combustor under low preheat conditions.
Nuclear waste management facilities at Chalk River Laboratories (CRL) use below-ground “tile-holes” to store solid waste from various activities such as medical isotope production. After long periods of isotopic decay, some of the waste has decayed down to low activities and can be transferred to low-level waste storage facilities. This paper presents a method to verify the radiation level of the waste inside tile-holes by performing gamma radiation scans along the depth of waste storage tile-holes. Such measurements allow for noninvasive verification of tile-hole contents and provide input to the assessment of radiological risk associated with removal of the waste. Using the radiation profile system, the radiation level of the radioactive waste may be identified based on the radiation profile. This information will support planning for possible transfer of this waste to a licensed waste storage facility designed for low-level waste, thus freeing storage space for possible tile-hole re-use for more highly radioactive waste. CRL-developed small diode-based gamma radiation sensors have been used in these radiation scans. The diode sensors were deployed into verification tubes adjacent to the tile-holes to measure the radiation profile. Over 10 tile-holes have been scanned using this technique since 2009.
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