Performance evaluation and availability analysis of ammonia synthesis unit in a fertilizer plant

Journal of Industrial Engineering International

مقاله 2، دوره 5، شماره 9، آذر 2009، صفحه 17-26   

نویسندگان

S Kumar¹؛ P.C Tewari²؛ Sunand Kumar³

¹Assistant Professor, Dep. of Mechanical Engineering, AKG Engineering College, Ghaziabad-(UP), India

²Assistant Professor, Dep. of Mechanical Engineering, National Institute of Technology. Kurukshetra-(Haryana), India

³Professor, Dep. of Mechanical Engineering, National Institute of Technology. Hamirpur-(HP), India

چکیده

This paper discusses the performance evaluation and availability analysis of ammonia synthesis unit of a fertilizer plant. The fertilizer plant is a complex and repairable engineering system comprises of various units viz. shell gasification and carbon recovery, desulphurization, co-shift conversion, decarbonation, nitrogen wash and ammonia synthesis etc. One of the most important functionaries of a fertilizer plant is ammonia syn-thesis unit. This unit consists of five subunits arranged in series and parallel configurations. For the evaluation of performance and analysis of availability, a performance evaluating model has been developed with the help of mathematical formulation based on Markov Birth-Death process using probabilistic approach. The findings of this paper are therefore, considered to be useful for the analysis of availability and determination of the best possible maintenance strategies in a fertilizer plant concerned.

کلیدواژه‌ها

Steady state availability؛ Maintenance Strategies؛ Performance Evaluation