Abstract
This paper describes the phenomenon of reliability of power plants. It gives an explanation of the terms connected with this topic as their proper understanding is important for understanding the relations and equations which model the possible real situations. The reliability phenomenon is analysed using both the exponential distribution and the Weibull distribution. The results of our analysis are specific equations giving information about the characteristics of the power plants, the mean time of operations and the probability of failure-free operation. Equations solved for the Weibull distribution respect the failures as well as the actual operating hours. Thanks to our results, we are able to create a model of dynamic reliability for prediction of future states. It can be useful for improving the current situation of the unit as well as for creating the optimal plan of maintenance and thus have an impact on the overall economics of the operation of these power plants.
Highlights
The reliability may be explained as ability of a unit to successfully operate in required time of operation
The probability of failure-free operation for the exponential distribution was determined by the following equation [2]: PB(A) = 1 − e−λt
After that it was derived from the same expression of probability for the Weibull distribution
Summary
The reliability may be explained as ability of a unit to successfully operate in required time of operation. Another explanation of the reliability can be this statement: Reliability is equal to probability that a unit will be operating without failures in certain time of operation [1]. We are able to achieve permanent sustainability thanks to the determination of the reliability of the whole system. This reliability has a significant impact on electric power engineering, because all the components in power engineering systems have certain parameters of reliability, such as probability of failure-free operation and the mean time.
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