Análisis de la eficiencia energética y elaboración de un plan de mantenimiento de los calderos pirotubulares de la Empresa RIOLAC

Abstract

The energy analysis of the shell boiler with a capacity of 15 [Bhp] at RIOLAC company was carried out in this curricular integration work. It determined the technical state and operation of the boiler with the preventive maintenance carried out with the considerations of the company. Steam generation and energy efficiency were improved. A maintenance plan was built based on the ASME Section VII 2013 standards for the characteristics of the boiler and the thermography analysis, feed water and boiler analysis, and combustion fumes analysis. Together with the recommendations and standardizations of the English standard ABMA BS-2486 and the Ecuadorian standard TULSMA 2015, amounts were taken that were used for energy efficiency analysis by the direct and indirect methods that the ASME PTC 4-2013 standard gave us, details for the calculation of performance and energy balance immersed in the steam generation process. Measurement equipment such as a thermographic camera, spectrophotometer, pH meter, combustion gas analyzer and Microsoft Excel software for calculating values were obtained. It was necessary to characterize the boiler under current operating conditions, together with the analyzes carried out. The energy losses were identified due to the hardness of the feed water and lack of chemical treatment on time and the most significant failures within the fire tubes that were scarification, corrosion and pitting on its surface; that used a performance of 79,93% where the appropriate maintenance plan was applied, saving corrective maintenance costs in a period of 3 years; improving operation and maintenance processes, recommending better water treatment, better fuel mix, and the implementation of steam traps and pipe linings for higher performance.