F108 FREEDOM-A FOSSIL POWER PLANT MAINTENANCE STRATEGY OPTIMIZATION SYSTEM

概要

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Cost reduction in electric power generation is a major management concern, and it is accordingly necessary to reduce maintenance expenses while upholding plant reliability. A maintenance optimization system known as "FREEDOM", which uses DCF (discounted cash flow) and NPV (net present value) calculation function, has been newly developed. This system probabilistically evaluates the lifetime of each boiler and turbine component and quantitatively calculates the risk (which is defined as the cumulative probability of failure multiplied by the consequence of failure). Economically optimized timing and alternatives for replacement or repair are then outputted. This system has already been applied to seven plants in Japan, and its effectiveness has been confirmed.
一般社団法人日本機械学会の論文