Predictive maintenance for the heated hold-up tank

We present a numerical method to compute an optimal maintenance date for the test case of the heated hold-up tank. The system consists of a tank containing a fluid whose level is controlled by three components: two inlet pumps and one outlet valve. A thermal power source heats up the fluid. The fail...

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Bibliographic Details
Published in:Reliability engineering & system safety 2013-07, Vol.115, p.82-90
Main Authors: de Saporta, Benoîte, Zhang, Huilong
Format: Article
Language:English
Subjects:
Applied sciences
Computational fluid dynamics
Dynamic reliability
Exact sciences and technology
Fluid flow
Fluids
Hybrid process
Liquid levels
Maintenance
Maintenance optimization
Markov processes
Mathematical models
Mathematics
Numerical analysis
Numerical method
Operational research and scientific management
Operational research. Management science
Optimization and Control
Piecewise deterministic Markov process
Predictive maintenance
Probability and statistics
Probability theory and stochastic processes
Reliability theory. Replacement problems
Sciences and techniques of general use
Tanks
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Summary:We present a numerical method to compute an optimal maintenance date for the test case of the heated hold-up tank. The system consists of a tank containing a fluid whose level is controlled by three components: two inlet pumps and one outlet valve. A thermal power source heats up the fluid. The failure rates of the components depends on the temperature, the position of the three components monitors the liquid level in the tank and the liquid level determines the temperature. Therefore, this system can be modeled by a hybrid process where the discrete (components) and continuous (level, temperature) parts interact in a closed loop. We model the system by a piecewise deterministic Markov process, propose and implement a numerical method to compute the optimal maintenance date to repair the components before the total failure of the system.
ISSN:0951-8320
1879-0836
DOI:10.1016/j.ress.2013.02.016