RENOVATION & MODERNISATION
Termico provides the services of Renovation and Modernisation (R&M)
that have been recognized as cost effective options to achieve additional
generation from existing units at low cost and in shorter period. However,
new environmental norms which have come into existence post 2015 and
increase in penetration of renewable, the R&M cannot be limited to the
improvement of performance only. There needs to be all-inclusive approach
for R&M of thermal power plants. Termico provides the following services
in this category:
Preventive Maintenance
To develop preventive maintenance schedule and follow up.
To organize the daily planning meeting and plan for maintenance based on Feedback from operation such as-
- Operation groups.
- Condition monitoring cell reports and
- Progress of previous day’s work and
- Plant Maintenance schedule.
Review and improve methods of maintenance practices and Revise work specifications accordingly.
Adoption of Modular Maintenance Technology.
Co-ordinations amongst operation, maintenance and planning.
Ensure that the history of equipments is being maintained (to be enabled through ERP system)
Planning forl Opportunistic maintenance.
Long Term Planning
- Annual Overhaul Schedule finalization based on statutory boiler license renewal, running hours, OEM recommendation and Condition of the equipment, 4-6 months before start of next financial year.
- Preparation of 5 Year rolling plan considering business target (Business Plan), reviewed annually.
- Planning of the availability of Critical spares, materials, special tools and tackles e.g. sky climbers, scaffolding materials etc. and work orders with required scope, before start of overhaul.
- Engineering declaration.
- Outage committee with specific responsibility of meeting time schedule and ensuring monitoring.
- Detailed activity scheduling and monitoring & control through bar chart etc.
- Mobilization of contractors before overhaul.
- Co-ordinate with materials, finance, operation and other maintenance department apart from MPC.
- Human Safety.
- The overhauling (AOH/ COH) of units is a comprehensive exercise which has to be done with spares need identification and planning 2 to 3 years in advance. These include techno-statutory scopes such as RLA study of boiler pressure parts, Comprehensive RLA study, NDT of turbine components and spare part planning based on above.
- Overhaul of units with financial management: It includes preparation of annual Repair & Maintenance (R&M) revenue budget as well as capital budget along with 5 years business plan.
- Pre-OH activities are main feature for successful overhaul these include Surveys, Testing, Unit data collection etc.
- Identification of defects, planning of activities and its inclusion in engg. Declaration.
- Overhaul work scope finalization based on – Integrated inputs from Work Requisition Analysis, operational performance degradation & GAP, Energy Audit recommendations, OEM’s recommendations etc.
- Monitoring cycle of spares, consumables and contracts 12 to 24 months in advance to ensure availability of material for overhauls 6 months in advance.
Optimization of Overhaul duration and Intervals based on
- Keeping the modules for replacement readily available.
- Learning from previous OH (Proper recording and retrieving to be ensured)
- Operational parameters, performance parameters and equipment condition between two overhauls for taking appropriate decision.
Activity Protocols & Check list for-
- Monitoring work during overhauling
- Overhauling meetings
- Quality checks for completion of all activities during overhaul/ before commissioning etc.
- Monitoring by cross area station
Study of sustenance of performance improvement after OH based on
- Pre and post OH O&M Data
- Cost Benefit Analysis and its validation
- Overhauling Reports
