Data on
time between complete power outages, Time between Failure (TBF) in Uyo were
considered. Trend test and serial correlation test were conducted graphically
for the data. The tests proved that the data were identically and independently
distributed (iid). Summary statistics of the data showed that complete power
outage occurred 416 times between the year 2014 and 2018. The maximum
likelihood estimation method was used to estimate the parameters of Weibull
2-parameter, Normal, Lognormal 2-parameter and exponential distributions. The
values of Kolmogorov-Smirnov, Anderson Darling and Chi-Square statistics were
used to determine the best fit distributions. A modelfor the
computation of reliability of electric power was then proposed.
References
[1]
Nnanna, I. and Uzorh, A.C. (2011) The Impact of Power Outage on Nigeria Manufacturing Sector. NIIE Proceedings, Ibadan, 4-6 August 2011, 45-56.
[2]
Saraswat, S. and Yadava, G.S. (2008) An Overview on Reliability, Availability, Maintainability and Supportability (RAMS) Engineering. International Journal of Quality and Reliability Management, 25, 330-344. https://doi.org/10.1108/02656710810854313
[3]
Kececioglu, D. (1991) Reliability Engineering Handbook. Vol. 1, Prentice Hall Inc., Englewood Cliffs.
[4]
Aly, M.F., Ajety, I.H., Abdel-Magied, R.K. and Elhahion, E.K. (2018) A Comprehensive Model of Reliability, Availability and Maintainability (RAM) for Industrial Systems Evaluations. JJMIE, 12, 59-67.
[5]
Goets, W. and Villa, S.D. (1998) Reliability Improvement through the Use of Plant Operating Data and the ORAP Database. O & M Conference on Modern Power Systems, London.
[6]
Kolawole, A., Agbola, O.O., Ikubanni, P.P., Raji, O.G. and Osueke, C.O. (2019) Reliability and Power Loss Analysis: A Case Study of a Power Plant in Nigeria. Cogent Engineering, 6, Article ID: 1579426. https://doi.org/10.1080/23311916.2019.1579426
[7]
Adamu, M.A., Adebayo, B.A., Bajoya, B.G., Ambafi, J.G. and Omokhafe, J.T. (2012) Reliability Evaluation of Kainji Hydro-Electric Power Station in Nigeria. Journal of Energy Technology and Policy, 2, 15-30.
[8]
Dewangan, D.N., Kumar, M.J. and Banjare, Y.P. (2014) Reliability Investigation of Steam Turbine Used in Thermal Power Plant. International Journal of Innovation Research in Science, Engineering and Technology (IJIRSET), 3, 14915-14923.
[9]
Barabady, J. (2005) Reliability and Maintenability Analysis of Crushing Plants in Jajarm Bauxite Mine of Iran. Annual Reliability and Maintainability Symposium, Alexandria, 24-27 January 2005, 109-115. https://doi.org/10.1109/RAMS.2005.1408347
[10]
Reliasoft (2007) How Good Is Your Assumed Distribution’s Fit. Reliability Basic Issue. http://www.weibull.com/hotwire/issue71/relbasics71.htm
[11]
Pohl, E. (2010) System Reliability. John Willey and Sons, Hoboken. https://doi.org/10.1002/9780470926963.ch8
[12]
Elsayed, E.A. (2012) Reliability Engineering. 2nd Edition, John Wiley and Sons, Hoboken.
[13]
Kumar, U. and Klefsjo, B. (1992) Reliability Analysis of Hydraulic System of LHD Machine Using the Power Law Process Model. Reliability Engineering and System Safety, 35, 217-224. https://doi.org/10.1016/0951-8320(92)90080-5
[14]
Kumar, U., Klefsjo, B. and Granholm, S. (1989) Reliability Investigation for a Fleet of Load Haul Dump Machines in a Swedish Mine. Reliability Engineering and System Safety, 28, 36-42. https://doi.org/10.1016/0951-8320(89)90004-5
[15]
Rajaprasad, S.V.S. (2018) Investigation of Reliability, Maintainability and Availability of a Paper Machine in an Integrated Pulp and Paper Mill. International Journal of Engineering, Science and Technology, 10, 43-56. https://doi.org/10.4314/ijest.v10i3.5
[16]
Balaraju, J., Govinda Raj, M. and Murthy, C.H.S.N. (2018) Estimation of Reliability-Based Maintenance Time Intervals of Load-Haul-Dumper in an Underground Coal Mine. Journal of Mining & Environment, 9, 761-770.
[17]
Rigdon, S.E. and Basu, A.P. (2000) Statistical Methods for the Reliability of Repairable Systems. John Wiley & Sons, Inc., Hoboken.
[18]
Mehrannia, H. and Pakgohar, A. (2014) Using Easy Fit Software for Goodness-of-Fit Test and Data Generation. International Journal of Mathematical Archive, 5, 118-124.
[19]
Dibal, N.P., Bakari, H.R. and Yahaya, A.M. (2016) Estimating the Parameters in the Two-Parameter Weibull Model Using Simulation Study and Real-Life Data. IOSR Journal of Mathematics, 12, 38-42.
[20]
Collett, D. (2009) Modelling Survival Data in Medical Research. 2nd Edition, Chapman and Hall/CRC, London.
