Development of Multi-Stage Steam Injector for Feedwater Heaters in Simplified Nuclear Power Plant(<Special Issue>International Conferences on Power and Energy)
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概要
- 論文の詳細を見る
A steam injector (SI) is a simple, compact and passive pump and also acts as a high-performance direct-contact compact heater to heat up feedwater by using extracted steam from the turbine. To develop high performance compact feedwater heater, it is necessary to quantify the characteristics between physical properties of the flow field. Its performance depends on the phenomena of steam condensation onto the water jet surface and heat transfer in the water jet due to turbulence on to the phase-interface. The analysis was conducted by using CFD code embedded separate two-phase flow models that were confirmed by the experimental data. As the four-stage SI is compact heater, the system is expected to bring about great simplification and materials-saving effects, and high reliability of its operation. Therefore, it is confirmed that the simplification of the power plant by replacing all low-pressure feedwater heaters with the four-stage SI system, having steam extraction pressures equal to those for the existing ABWR system.
- 一般社団法人日本機械学会の論文
- 2006-05-15
著者
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NARABAYASHI Tadashi
TOSHIBA Corporation
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Mori Michitsugu
R&d Center Tokyo Electric Power Company
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OHMORI Shuichi
R&D Center, Tokyo Electric Power Company
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MORI Michitsugu
R&D Center, Tokyo Electric Power Company
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ASANUMA Yutaka
TOSHIBA Corporation
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IWAKI Chikako
TOSHIBA Corporation
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Ohmori Shuichi
R&d Center Tokyo Electric Power Company
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Narabayashi Tadashi
Toshiba Corporation:present Address Hokkaido University
関連論文
- ICONE11-36488 Development of Simplified Steam Injector Feedwater Heater System : Large Scale Model Tests and Design Improvement by CFD
- Flow Analysis for Single and Multi-Nozzle Jet Pump(Jets, Wakes and Separated Flows)
- Flow Analysis for Single and Multi-Nozzle Jet Pump(Multiple Jet)
- Analysis of Heat Balance on Innovative-Simplified Nuclear Power Plant Using Multi-Stage Steam Injectors
- Development of Multi-Stage Steam Injector for Feedwater Heaters in Simplified Nuclear Power Plant(International Conferences on Power and Energy)
- ICONE11-36508 DEVELOPMENT OF INTERNAL CRD FOR NEXT GENERATION BWR
- ICONE11-36510 STUDY ON THERMAL-HYDRAULIC ACCUMULATION MECHANISMS OF NON-CONDENSABLE GASES
- Effect of Surface Roughness on Jet Pump Performance(Jets, Wakes and Separated Flows)
- EFFECT OF SURFACE ROUGHNESS ON JET PUMP PERFORMANCE(Fluid Machinery)
- ICONE11-36486 IMPROVEMENT OF BWR STEAM SEPARATOR WITH THREE-DIMENSIONAL GAS-LIQUID TWO-PHASE FLOW SIMULATION METHOD
- Study on Turbulent Behavior of Water Jet in Supersonic Steam Injector