Diagnosis of Thermal Efficiency of Advanced Combined Cycle Power Plants Using Optical Torque Sensors(<Special Issue>International Conferences on Power and Energy)

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概要

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• A new optical torque measurement method was applied to diagnosis of thermal efficiency of advanced combined cycle, i.e. ACC, plants. Since the ACC power plant comprises a steam turbine and a gas turbine and both of them are connected to the same generator, it is difficult to identify which turbine in the plant deteriorates the performance when the plant efficiency is reduced. The sensor measures axial distortion caused by power transmission by use of He-Ne laser beams, small stainless steel reflectors having bar-code patterns, and a technique of signal processing featuring high frequency. The sensor was applied to the ACC plants of TOKYO ELECTRIC POWER COMPANY, TEPCO, following the success in the application to the early combined cycle plants of TEPCO. The sensor performance was inspected over a year. After an improvement related to the signal process, it is considered that the sensor performance has reached a practical use level.

• 一般社団法人日本機械学会の論文
• 2006-05-15

著者

• Umezawa Shuichi

  Thermal Power Technology Group R & D Center Tokyo Electric Power Company

• Umezawa Shuichi

  Thermal Power Technology Group R&d Center Tokyo Electric Power Company

関連論文

• F107 DIAGNOSIS OF THERMAL EFFICIENCY OF COMBINED CYCLE POWER PLANTS USING OPTICAL TORQUE SENSOR
• Diagnosis of Thermal Efficiency of Combined Cycle Power Plants Using Optical Torque Sensors(Experimental Mechanics in Heat and Fluid Flow)
• Diagnosis of Thermal Efficiency of Advanced Combined Cycle Power Plants Using Optical Torque Sensors(International Conferences on Power and Energy)

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