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Technical Brief

# Optimization for Steam Turbine Cold-End System of a Nuclear Power Plant and Sensitivity Analysis

[+] Author and Article Information
Jia Yang

China Nuclear Power Engineering Co.,
Beijing, China
e-mail: transparency2013@163.com

Rongyong Zhang

China Nuclear Power Engineering Co.,
No. 117, Xisanhuanbeilu, Haidian District,
Beijing 100840, China
e-mail: zhangryc@cnpe.cc

Manuscript received June 30, 2015; final manuscript received September 20, 2016; published online December 20, 2016. Assoc. Editor: Asif Arastu.

ASME J of Nuclear Rad Sci 3(1), 014501 (Dec 20, 2016) (4 pages) Paper No: NERS-15-1137; doi: 10.1115/1.4035285 History: Received June 30, 2015; Accepted October 05, 2016

## Abstract

This article conducts optimization and sensitivity analysis for the cold-end system of a nuclear power plant (NPP) with a sea water circulating system, using the minimum annual cost method by dynamic economical analysis. The following factors are taken into account for the optimization: the design of a condenser (cooling area and the parameters of cooling tubes), the scale of the cooling tower, the flow rate of circulation water, and the diameter of circulating pipes. In conclusion, the optimum scheme of the cold-end system is obtained for the double-back pressure turbine project. The variation trend of the annual cost with changing circulating water amount is also concluded. Finally, this article provides the sensitivity analysis of the feed-in tariff.

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## References

Zhang, W. B., 2005, Water Works Design for Power Engineering, 1st ed., China Electricity Power Press, Beijing, p. 139.

## Figures

Fig. 1

Schematic diagram of the circulating system

Fig. 2

Variation trend of the annual fixed cost with changing cooling rate and condenser cooling area

Fig. 3

Variation trend of the annual operating cost with changing cooling rate and condenser cooling area

Fig. 4

Variation trend of the annual total cost with changing cooling rate and condenser cooling area

## Errata

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