AVAILABILITY AND MAINTAINABILITY OF EQUIPMENT IN INTEGRATED TECHNOLOGICAL FLOWS FOR SOLID BIOFUEL PRODUCTION: A REVIEW
DOI:
https://doi.org/10.52326/jes.utm.2026.33(1).07Keywords:
biomass processing systems, maintenance prioritization, operational availability, pelletizing process, reliability modeling, technological vulnerability indicator, machine working componentsAbstract
The transition toward renewable energy sources and the efficient valorization of agricultural residual biomass necessitate increased reliability and efficiency of integrated technological flows for solid biofuel production. The study is based on the hypothesis that the overall performance of the integrated technological flow is primarily determined by equipment located on the critical path and by the operational behavior of working components. The research aims to evaluate equipment availability and maintainability at system level and to identify the limiting links affecting process continuity. The methodology includes the analysis of reliability and maintenance indicators, correlation of availability with functional criticality, and the development of a synthetic technological vulnerability indicator to assess the global risk of unavailability. The results highlight the decisive influence of biomass properties and working component behavior on MTBF, MTTR, and overall availability, emphasizing the need for a systemic and differentiated maintenance approach to enhance system resilience. Furthermore, the findings indicate an uneven distribution of performance within the technological flow and identify densification stages as critical limiting links, followed by mechanical preparation and biomass generation and collection stages. The proposed integrative approach provides an innovative methodological framework for performance evaluation and maintenance prioritization, contributing to reduced unplanned downtime, optimized resource utilization, and improved resilience of solid biofuel production systems.
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