Simulation modeling and analysis of a complex system of a thermal power plant

• Gupta, Sorabh ^[2] ; Tewari, Puran C. ^[1]
  1. [1] National Institute Of Technology

     National Institute Of Technology

     Japón

     
  2. [2] Haryana College of Technology & Management
• Localización: Journal of Industrial Engineering and Management, ISSN-e 2013-0953, Vol. 2, Nº. Extra 2, 2009 (Ejemplar dedicado a: Special Issue - New trends in Process Simulation and Modeling), págs. 387-406
• Idioma: inglés
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• Resumen

  • The present paper deals with the opportunities for the modeling of flue gas and air system of a thermal power plant by making the performance evaluation using probabilistic approach. The present system of thermal plant under study consists of four subsystems with three possible states: full working, reduced capacity working and failed. Failure and repair rates for all the subsystems are assumed to be constant. Formulation of the problem is carried out using Markov Birth-Death process using probabilistic approach and a transition diagram represents the operational behavior of the system. Interrelationship among the full working and reduced working has been developed. A probabilistic model has been developed, considering some assumptions. Data in feasible range are selected from a survey of thermal plant and the effect of each subsystem on the system availability is tabulated in the form of availability matrices, which provides various performance/availability levels for different combinations of failure and repair rates of all subsystems. Based upon various availability values obtained in availability matrices and graphs of failure/repair rates of different subsystems, performance and optimum values of failure/repair rates for maximum availability, of each subsystem is analyzed and then maintenance priorities are decided for all subsystems.