Author/Authors :
Gupta Sorabh نويسنده Geeta Institute of Management and Technology Gupta Sorabh , Sharma Avdhesh Kr. نويسنده D.C.R. University of Sc. & Technology, Murthal (Sonipat) Sharma Avdhesh Kr. , Tewari P C نويسنده Departement of Mechanical Engineering Tewari P C
Abstract :
The present paper discusses the development of a Markov model for performance evaluation of
coal handling unit of a thermal power plant using probabilistic approach. Coal handling unit
ensures proper supply of coal for sound functioning of thermal Power Plant. In present paper,
the coal handling unit consists of two subsystems with two possible states i.e. working and
failed. Failure and repair rates of both subsystems are taken to be constant. After drawing
transition diagram, differential equations have been generated. After that, steady state
probabilities are determined. Besides, some decision matrices are also developed, which
provide various performance levels for different combinations of failure and repair rates of all
subsystems. Based upon various performance values obtained in decision matrices and plots of
failure rates/ repair rates of various subsystems, performance of each subsystem is analyzed and
then maintenance decisions are made for all subsystems. The developed model helps in
comparative evaluation of alternative maintenance strategies.
