Improving Operational Performance by prioritizing Lean Maintenance Tools: A Case Study of Reppie Waste-to-Energy Power Generation Plant
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Date
2024-10
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Addis Ababa University
Abstract
The main purpose of this research is to improve operational performance in waste-to-energy (WTE) plant facility by prioritizing lean maintenance tools. Waste-to-energy power plants are complicated systems that need several maintenance strategies to be available and efficient in all of their functionalities. The Operational performance; availability, efficiency, quality maintenance and maintenance costs of the WTE plants are significantly impacted by maintenance performance. The shortcomings of WTE facilities' lifetime maintenance could lead to higher production costs, a decrease in ability to compete, increased downtime, and a higher mean-time-failure rate. This study aims to improve operational performance by applying the selected Lean Maintenance Tools (LMT) framework in the case company. Data relevant to the research was collected among employees in different positions within the organization to evaluate the potential for operational performance improvement using designed questionnaire, informal interview, direct observations, and company records. The reliability and validity of the survey findings were confirmed through a triangulation approach, incorporating various data collection methods. In order to analyze the collected data from primary and secondary sources, the researcher has used descriptive analysis method such as Analytic Hierarchy Process (AHP), SPSS software and Pareto diagram.
The selection of lean maintenance tools can help identify and address potential waste areas in equipment failures by prioritizing lean tools in maintenance strategies. AHP tool prioritization of LMT and operational dimension has been calculated. The most prioritized lean maintenance tool on the survey is TPM while the least emphasized tool is Kanban system. The findings of this study supports the promotion of sustainable operation, waste management practices, reduced maintenance cost and increased renewable energy production efficiency. The researcher then selected the top five LMT above listed that can address significant impact in affecting operational performance and finally proposed a new implementation framework including operational procedure and action plan that are going to be practiced.
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RWtE, Lean maintenance tools, AHP, Operational performance, MSW