{"id":28291,"date":"2026-02-09T11:12:12","date_gmt":"2026-02-09T11:12:12","guid":{"rendered":"http:\/\/141.23.68.248\/wp\/?page_id=28291"},"modified":"2026-02-09T11:18:32","modified_gmt":"2026-02-09T11:18:32","slug":"4-life-cycle-analysis1","status":"publish","type":"page","link":"http:\/\/141.23.68.248\/wp\/?page_id=28291","title":{"rendered":"4. Life-cycle Analysis"},"content":{"rendered":"\n

1. Life-Cycle Analysis<\/strong>
This section presents the life-cycle environmental and economic evaluation of the maintenance strategies developed for the integrated station system. The analysis builds on the Pareto-optimal maintenance strategies identified in the previous stage and extends the assessment beyond maintenance performance to include long-term sustainability and cost implications.<\/p>\n\n\n\n

2. Life-Cycle Environmental Assessment<\/strong>
<\/p>\n\n\n\n

A life-cycle assessment (LCA) framework is applied to quantify the environmental impacts associated with each selected maintenance strategy over the system service life. The assessment considers all major subsystems of the station and aggregates impacts across the entire integrated system.
Environmental impacts are calculated based on material quantities and maintenance intervention frequencies, linking each maintenance action to its corresponding emission factors. The evaluation focuses on carbon dioxide (CO\u2082) and sulphur dioxide (SO\u2082) emissions as representative indicators of greenhouse gas emissions and air-pollution-related impacts.
For each maintenance strategy, emissions are accumulated over the service life to obtain total life-cycle values. The results indicate a noticeable spread in environmental performance across the evaluated strategies. Maintenance strategies characterised by frequent or intensive interventions generally result in higher cumulative emissions, while strategies with longer intervention intervals tend to exhibit lower environmental impacts due to reduced material replacement requirements.

3. Life-Cycle Cost Assessment<\/strong>
<\/p>\n\n\n\n

In addition to environmental impacts, a life-cycle cost assessment is conducted for each Pareto-optimal maintenance strategy. Life-cycle costs are derived from maintenance-related activities and material replacement quantities occurring throughout the system lifetime.
The calculated life-cycle cost represents the cumulative economic burden associated with each maintenance strategy and enables a direct comparison between strategies with different intervention frequencies and coordination levels. Similar to environmental impacts, the results show a substantial variation in life-cycle costs across the evaluated strategies.
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4. Relationship Between Cost and Maintenance Performance
<\/strong>
The relationship between total interruption duration and life-cycle cost highlights the inherent trade-off between system availability and economic performance. Strategies achieving lower cumulative interruption durations are not necessarily associated with lower life-cycle costs. In several cases, improved availability is achieved at the expense of higher maintenance intensity and increased costs.

<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

Figure 9. illustrates the relationship between life-cycle cost and system interruption duration for the Pareto-optimal maintenance strategies.<\/em><\/p>\n\n\n\n

Conversely, strategies with lower life-cycle costs often involve less frequent maintenance interventions, which results in longer cumulative system downtime. These findings demonstrate that maintenance decisions influence not only operational performance but also long-term economic and environmental outcomes.

5. Role of Life-Cycle Analysis in the Overall Framework
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The life-cycle analysis provides a critical link between maintenance optimization and sustainability assessment. By integrating environmental impacts and life-cycle costs into the evaluation of maintenance strategies, the analysis enables a comprehensive comparison of trade-offs between availability, environmental performance, and economic efficiency.<\/p>\n\n\n\n

The results of this section form the basis for the subsequent multi-objective optimization, where maintenance performance, environmental impacts, and costs are considered simultaneously to identify balanced system-level solutions.

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Home <\/a>| introdaction <\/a>| Integration Context<\/a> | Maintenance Strategies<\/a> | Life-cycle Analysis | Multi-Objective Optimizatin<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

1. Life-Cycle AnalysisThis section presents the life-cycle environmental and economic evaluation of the maintenance strategies developed for the integrated station system. The analysis builds on the Pareto-optimal maintenance strategies identified in the previous stage andContinue reading<\/a><\/p>\n","protected":false},"author":294,"featured_media":0,"parent":26463,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-28291","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"http:\/\/141.23.68.248\/wp\/index.php?rest_route=\/wp\/v2\/pages\/28291","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/141.23.68.248\/wp\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/141.23.68.248\/wp\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/141.23.68.248\/wp\/index.php?rest_route=\/wp\/v2\/users\/294"}],"replies":[{"embeddable":true,"href":"http:\/\/141.23.68.248\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=28291"}],"version-history":[{"count":4,"href":"http:\/\/141.23.68.248\/wp\/index.php?rest_route=\/wp\/v2\/pages\/28291\/revisions"}],"predecessor-version":[{"id":28300,"href":"http:\/\/141.23.68.248\/wp\/index.php?rest_route=\/wp\/v2\/pages\/28291\/revisions\/28300"}],"up":[{"embeddable":true,"href":"http:\/\/141.23.68.248\/wp\/index.php?rest_route=\/wp\/v2\/pages\/26463"}],"wp:attachment":[{"href":"http:\/\/141.23.68.248\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=28291"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}