Tokyo Electric Power Company

Overview of 11 MW Fuel Cell Power Plant," Non-published information from Tokyo Electric Power Company, September 1989. 

IFC has been marketing the PC25, a 200 kW atmospheric PAFC unit, since 1992. Details of this commercial cycle are proprietary and not available for publication. In order to discuss an example PAFC cycle, a pressurized (8 atm) 12 MW system will be presented (50). This cycle is very similar to the 11 MW IFC PAFC cycle that went into operation in 1991 in the Tokyo Electric Power Company system at the Goi Thermal Station, except that two performance enhancements have been incorporated. Limited data are available regarding the Goi power plant. However, it is understood that the average cell voltage is 750 mV and the fuel utilization is 80% (51). The enhanced 12 MW cycle presented here utilizes values of 760 mV and 86%. This enhanced cycle (Figure 9-8) is discussed below with selected gas compositions presented in Table 9-6. 

Thomas L. Buchanan, John H. Hirschenhofer, David B. Stauffer, and Jay S. White, "Carbon Dioxide Capture in Fuel Cell Power Systems," September 1994, G/C Report 2981. "Overview of 11 MW Fuel Cell Power Plant," Non-published information from Tokyo Electric Power Company, September 1989. 

Fig, 4, Process flow diagram of 4.5 MW fuel cell power demonstration plant installed at the Tokyo Electric Power Company, Goi, Japan... 

To date, large-scale applications of fuel cells have been limited because of cost, although the Tokyo Electric Power Company in Japan is now operating an... 

Energy and Environment R D Center, Tokyo Electric Power Company,... 

Tokyo Electric Power Company, Inc. (Principal Investigator K. Shibata), Demonstration Testing of 11 MW Phosphoric Acid Fuel Cell Power Plant—from Planning to Power Generation. Interim Report for Electric Power Research Institute, Palo Alto, 1992. 

Toshiba, in collaboration with Tokyo Electric Power Company, has developed a hybrid catalytic combustion. Here only a part of the fuel is converted heterogeneously on the catalyst. The system consists of a pre-combustion mixing zone, a low-temperature catalyst zone, and a gas-phase combustion zone. The fuel-air mixture is controlled to maintain the temperature of the catalyst below 800 C, because the catalyst is not stable above the temperature. More fuel is added downstream to attain the final combustion temperature. The function of the catalyst is to be a source of additional "pre-heat" to support the lean, homogeneous down-stream combustion. 

Comparison of energy density (kWh/m ) for various storage systems of electric power such as pumped hydropower, redox-flow battery, lead battery, NAS battery and methylcyclohexane (MCH) and decalin (TEPCO = Tokyo Electric Power Company). 

Tokyo Electric Power Company, 1-3 Uchisaiwai-cho 1-chome Chiyoda-ku Tokyo 100-0011 Japan Tel +81 3 3501 8111, Fax +81 3 35968562, e-mail Makino.S tepco.co.jp... 

AMAKINO Shigenori Tokyo Electric Power Company 1-3 Uchisaiwai-cho 1-chome Chiyoda-ku Tokyo 100-0011... 

As mentioned earlier, the first LWR in Japan was the JAERIJPDR which started operating in 1963. The reactor is of the plate construction type and the material was SA302B modified. The first commercial nuclear power plant was JAPCO s Tokai 1 which went into operation in 1966. The RPV was the Calder HaU-type made of JIS SB46 modified (Coltuf 26 equivalent) plate steel. After that, JAPCO constructed the Tsuruga 1 BWR plant in 1965. The Tokyo Electric Power Company (TEPCO) and Kansai Electric Power Company (KEPCO) also decided to construct the Fukushima 1... 

A fire occurred with a Na-S battery made by Tepco (Tokyo Electric Power Company) on 21 September 2011, leading NGK to request the provisional shutdown of all Na-S batteries. 

The Fukushima Daiichi nuclear power station consists of six Boiling Water Reactors (B WRs) designed by General Electric (GE), built by GE, Toshiba and Hitachi, and aU operated by the Tokyo Electric Power Company (TEPCO). The six Fukushima Daiichi reactors were Mark One GE BWRs, which began generating electricity in 1970,... 

Interim report of the investigation committee on the accidents at Fukushima nuelear power stations of the Tokyo Electric Power Company, December 26, 2011. 

Review of accident at Tokyo Electric Power Company Incxjiporated s Fukushima Daiichi nuclear power station and proposed countermeasures (Draft), Japan Nuclear Technology Institute (JANTI), October 2011. 

To date, the core shrouds made of 304 stainless steel were replaced as SCC countermeasure in Tokyo Electric Power Company Fukushima Dai-ichi Nuclear Power Station Unit 1,2,3,5, Chugoku Electric Power Company Shimane Nuclear Power Station Unit 1 and Japan Atomic Power Company Tsuruga Nuclear Power Station Unit 1 [6.45], As well as core shroud, other internal components were replaced because of the reduction of radiation source, removal of the interference structure, and also the replacement of other SCC susceptible components made of 304SS. These were as follows ... 

FIGURE 40.6 Modem sodium-beta battery cells (a) 3 NGK sodium/sulfur cells (left to right—T4.1, T4.2, T5.1), and (h) an MES-DEA sodium/nickel-chloride cell (ML3). For reference, the dimensions of the largest NGK cell are 91 mm in diameter x 515 mm long while the MES ML3 cell is 36 mm square x 232 mm long. (Photographs courtesy of Tokyo Electric Power Company and NGK Insulators, Ltd. (a) and MES-DEA... 

FIGURE 40.15 NGK stationary-energy-storage batteries (a) the 50 kW modular battery component (1760 mm wide x 640 mm high x 2200 mm deep) and (h) an integrated 500 kW/4 MWh demonstration battery system that uses lOof these modular batteries (Courtesy of Tokyo Electric Power Company and NGK Insulators, Ltd.)... 

FIGURE 40.16 A photograph a 6 MW/ 48 MWh NGK sodium/sulfur battery system that is operating in a load-leveling mode at Ohito, Japan. This battery is one of the two largest sodium/ sulfur batteries ever built and has been operating since early 1998 Courtesy of Tokyo Electric Power Company and NGK Insulators, Ltd.). 

FIGURE 40.19 Capability of NGK sodium/sulfur cells to satisfy requirements of a dual-use application potentially important to emerging U.S. markets peak shaving and power quality (Courtesy of Tokyo Electric Power Company... 

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