Availability Analysis of a Power Plant by Computer Simulation

Reliability and availability of power stations are extremely important in order to achieve a required level of power generation. In particular, in the hot desert climate of Kuwait, reliable power generation is extremely important because of cooling requirements at temperatures exceeding 50-centigrade degrees. In this paper, a particular power plant, named Sabiya Power Plant, which has 8 steam turbines and 13 gas turbine stations, has been studied in detail; extensive data are collected; and availability of station units are determined. Furthermore, a simulation model is developed and used to analyze the effects of different maintenance policies on availability of these stations. The results show that significant improvements can be achieved in power plant availabilities if appropriate maintenance policies are implemented.

Authors:

• Mehmet Savsar

Keywords:

• Power plants
• steam turbines
• gas turbines
• maintenance
• availability
• simulation.

References:

[1] Proctor, C.L., El-Tamimi, A. and Savsar, M., “Reliability Modeling of a Gas Turbine Standby System”, Proceedings of the IASTED International Conference on Reliability and Quality Control, June 24-26, 1987, Paris, France, 125-128.
[2] Eti, M.C., Ogaji, S., and Probert, S. (2004), “Reliability of the Afam electric power generating station, Nigeria”, Applied Energy, 77(3): 309-315.
[3] Eti, M., Ogaji, S., and Probert, S. (2007). “Integrating reliability, availability, maintainability and supportability with risk analysis for improved operation of the Afam thermal power-station,” Applied Energy, 2007. 84(2): 202-221.
[4] Majeed, A. and Sadiq, N. (2006) “Availability & Reliability Evaluation of Dokan Hydro Power Station”, in Transmission & Distribution Conference and Exposition: Latin America, Vol.1-6; 15-18.
[5] Borges, C.L.T. and Falcao, D.M. (2006). “Optimal distributed generation allocation for reliability, losses, and voltage improvement,” International Journal of Electrical Power & Energy Systems, 28(6): 413-420.
[6] Alardhi, M., Hannam, R.G., and Labib, A.W. (2007). “Preventive maintenance scheduling for multi-cogeneration plants with production constraints,” Journal of Quality in Maintenance Engineering, 13(3): 276-292.
[7] Kancev, D. and Cepin, M. (2010). “The price of risk reduction: Optimization of test and maintenance integrating risk and cost,” Nuclear Engineering and Design, 22, 35-45.
[8] Marseguerra, M., and Zio, E. (2000), “Optimizing maintenance and repair policies via a combination of genetic algorithms and Monte Carlo simulation”, Reliability Engineering & System Safety, 68(1): 69-83.
[9] Kelton, W. D., Sadowski, R. P., and Swets, N. B. Simulation with Arena, 5th Edition, McGraw Hill, New York, 2010.