Host: The Japan Society of Mechanical Engineers
Name : The 30th International Conference on Nuclear Engineering (ICONE30)
Date : May 21, 2023 - May 26, 2023
Life Cycle Management (LCM) is a decision-making method to optimize the service life of major equipment. Through the implementation of LCM, the state management of power plant equipment and the optimization of operation life are realized at the same time, and the economic benefits are maximized on the premise of ensuring the safety of equipment. One part of LCM is to evaluate the economy of various maintenance schemes, give the long-term economic indicators of each maintenance scheme in the future from the perspective of the financial budget of the power plant, and quantitatively analyze the possible cost of the power plant and the comparison of the required cost between each scheme. This part of work is the core of the whole LCM plan. The economic analysis of longterm operation and maintenance plan determines the best maintenance plan by calculating the cost of multiple maintenance plans including preventive maintenance cost and corrective maintenance cost. This paper introduces the economic analysis method of long-term operation and maintenance plan through the research on the content of LCM economic analysis published by EPRI in the United States, gives the calculation example and calculation results of Comanche peak power plant, and discusses the problems that should be paid attention to when the above method is applied to nuclear power plants in China, including failure rate calculation, refueling cycle and net present value. This method can provide a reference for the general method of economic analysis of establishing long-term operation and maintenance plan of nuclear power plants in China.
