Failure reduction in a thermoelectric by substituting the materials used in the secondary Over-heater tubes
Abstract
Creep failure in the tubes of steam boilers is present in the totality of thermoelectrics in the world. In the thermoelectric “Carlos Manuel de Céspedes” of the province of Cienfuegos in Cuba; it is foreseen a project to transform one of the Japanese units from operating with diesel to natural gas. This will implicate an increase in the working temperature of the unit which will lead to an increment in probability of happening Creep failures. In this paper is evaluated how profitable is replacing all the tubes in the secondary overheater, where takes place most of Creep failures, due to the stainless steel SA 213 T91 that has an exceptional behavior from the point of view of Creep life, aiming to reduce expenses by failures and to increase the capacity of electric energy production of the thermoelectric making it more profitable.Downloads
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