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Life Cycle Management of Turbine Driven Auxiliary Feedwater Pumps in Nuclear Power Plants
Abstract
The process to develop a life cycle management plan for turbine driven auxiliary feed water (AFW) pump is described. Life cycle management (LCM) is the integration of ageing/obsolescence management with economic planning to optimize the operation, maintenance and service life of the equipment, maintain an acceptable level of performance, safety, reliability and to enhance the return on investment. In short LCM is a guide for operational and investment decisions with focus on long term ageing and reliability of the component. It is developed on the basis of component failure modes, operating history, maintenance practices, ageing, spares and obsolescence.
... Li Yiwen designs a supplier performance evaluation and risk early warning scheme covering the whole life cycle of assets from the perspectives of integrity, quality and service [4]. Wu Wenbo conducts a comprehensive evaluation of power equipment by modeling and quantifying the five dimensions of qualification performance, performance, economic life, equipment quality and comprehensive credit [5].Kiritsis uses ontology based technology to manage the life cycle of equipment assets [6]. Raghavan et al. ...
Scientific evaluation of the main transformer equipment suppliers is the premise to ensure the cost control and safe operation of the power grid. Based on the analysis of various factors affecting the main transformer equipment supplier, the evaluation index of the main transformer equipment supplier is constructed. Considering the fuzziness of the evaluation index, the index weight is determined by AHP, and the evaluation model of main transformer equipment supplier based on fuzzy comprehensive evaluation is established. The example calculation shows that the fuzzy comprehensive evaluation method can fully reveal the evaluation index information and reflect the actual situation of main transformer equipment suppliers scientifically and reasonably.
As an important state-owned energy backbone enterprise related to national energy security and the lifeline of national economy, power grid enterprises are responsible for ensuring the quality and safety of equipment and promoting the development of equipment quality. Therefore, continuously improving the quality evaluation of main transformer equipment is very important to improve the quality of power grid main transformer equipment. This paper first constructs the main transformer equipment quality evaluation index system from equipment procurement, equipment installation, equipment use and equipment decommissioning and scrapping; on this basis, the scoring method of each evaluation index is given, and the final main transformer equipment quality evaluation score is calculated by combining subjective and objective weight determination method; Finally, according to the evaluation of 500kV main transformer equipment of provincial power grid company price score, to evaluate the performance of equipment quality provided by suppliers.
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