Nabha power limited 2x700 mw thermal power plant tender. Operation and maintenance schedule of a steam turbine plant and. A study of implementation of preventive maintenance programme. Around 68% of russias electricity is generated by thermal plants and oil, natural gas. Thus, all the activities related to plant turnaround need to be. Jan 01, 2011 operation and maintenance of coal handling system in th ermal power plant j. Powerplant reliability, availability, maintainability hpac. Work control system to control the performance of maintenance in an eficient and safe manner such that economical, safe, and reliable plant operation is optimized. Several wellestablished maintenance philosophies have already been implemented in the thermal power plant scenario, such as reliability centered maintenance rcm 79, riskbased maintenance rbm 10,11, and conditionbased maintenance cbm. The maintenance system of the plant does not directly follow the maintenance approaches shown in the report, being a hybrid of both. The reliability of complex integrated system such as steam turbine power plant depends upon the parts reliability and type of maintenance policy used 2.
In thermal generating stations coal, oil, natural gas, etc are employed as primary sources of energy. Operation and maintenance of coal handling system in. The paper aims to evaluate the reliability and availability of the 6. Rcm and cbm is a maintenance technique used in thermal power plants. At present, four units of 110 mw, two units of 210 mw and two units of 250 mw each are generating electricity. Availability improvement methodology in thermal power plant core. Maintenance services to power plant owners and owners operators of. Optimization of operation and maintenance in thermal power. Administration of the engineering, improvement in thermal efficiency, or a. Introduction a peek into the power sector indicates the poor performance of power plants due to redundant failures. Introduction power plants for generating electricity from hydrotherm al resources can be divided into two types. Th busines cas for drones in energy drones for power plants.
In power plant 3, a 6 mw fuji electric back pressure turbine started commercial production on january 1, 1981. Power supply in nigeria, steam turbine, thermal station, operation and maintenance schedule of thermal station. The steam is then sent through a turbine connected to an electric generator in order to create electricity. Typically for a 2x500 mw plant based on indian coal, the amount of ash generated is around 300 to 400 tph depending on gross calorific value and ash content of worst coal. Enhancing capacity utilization of coal fired thermal power plant through better operation and maintenance practices mandi and jalkote 070 plant performance performance evaluation of major ht auxiliary equipment were carried out at unit 1 of 250 mw coal fired thermal power plant of dahanu thermal power station cpri. Process understanding and process control which involves optimization of all parameters based. However, operators have gained good experience in handling any breakdown. Operation and maintenance of thermal power stations. Thermal predictive maintenance at a coal plant tequipment. The average power p avg is the ratio between the produced energy w and power plant s runtime t, depending on the yearly power plant operational time.
This process involves a very highcost while the time allocated is very limited. Extraordinary maintenance interventions are required for. Technical support means our experts support our customers in proactive development of the power plant assets and its operation and maintenance and also in reactive problem solving. Pdf advanced technologies of preventive maintenance for. Additionally there was a direct relationship between the availability of the power plants and the production cost per unit. Powerplant reliability, availability, maintainability. On the one hand, a significant investment in maintenance is. This paper presents the power plant maintenance scheduling and. Th busines cas for drones in energy drones for power. Maintenance strategy optimization of a coalfired power plant. Advanced technologies of preventive maintenance for thermal power plants.
Enhancing capacity utilization of coal fired thermal power. Condition based maintenance, operation and maintenance, preventive maintenance, thermal power plant. This factor is most important when dc supply system is adopted. Operation and maintenance of coal handling system in thermal. The power plant should be as near as possible to the load centre to the centre of load. A study of implementation of preventive maintenance. Tepco provides engineering services and technical assistance for operation and maintenance planning on overall thermal power station facilities, including. Steam power plant configuration, design, and control. Coal handling plant of thermal power station a new approach by makarand joshi 1. Operations and maintenance practices and their impact on power. The plant load factor plf of statesector thermal power plants in india in 200607 was on an average 70. Boilers of thermal power plants debanjan basak cesc ltd. Much of the efficiency degradation can be recovered during maintenance outages.
Under the industrial training duration at amarkantak thermal power station, i found that the working procedure is going through the breakdown maintenance and condition based maintenance program. Leinster chapter 2 application of system analysis for thermal power plant heat rate improvement 29 m. The scope of the study included cost estimates for both liquid and gas fired peaking plant. First, a brief introduction of ffpp fundamentals and con. A total productive maintenance system tpm which is proactive is developed for use in thermal power station. In this power plant books section, you will find many free handbooks guides and training material related to thermal power plants, fossil fuel, and nuclear power plants and their operation maintenance and design. Total solution services for advanced maintenance of thermal. The energy efficiency of a conventional thermal power station is defined as saleable energy produced as a percent of the heating value of the fuel consumed. Power supply in nigeria, steam turbine, thermal station, operation and. But these maintenance systems are responsible for the occurrence of major losses in the plant like as human injury, planning management and also. For example, a study conducted on one of the thermal power plants in malaysia. Keywords tqm, quality management, tpm, operations, maintenance, plant.
Thermal power plants contribute maximum to the generation of power for any country. Non maintenance related downtime may be attributed to lack of demand, an interruption in raw material supply or production scheduling delays beyond the control of the maintenance function. Combined cycle systems for the utility industry download electric power plant design download fossil fuel burning and generating handbook download fossil fuelfired. This paper presents a technique that was used to improve the maintenance model of a power station. Thermal power plantcomponent, layout, advantages, disadvantages. Although thermal power generating facilities are aging, flexible operation in response to changes in the demand for electrical power is required. Higher the size of plant, lower is the capital cost per mw and higher is the plant efficiency the terminal steam condition tend to increase with the size of plant limitation in metallurgy is the constraints for higher terminal condition and hence efficiency. Power plant operation and maintenance services siemens energy. Selection of site for thermal power plant nearness to the load centre.
A total productive maintenance system tpm which is proactive is developed for use in thermal. To extend the life and manage the maintenance of those facilities, advanced preventive maintenance technology is. Performance indicator techniques based on operational data 1. Strengthening operations and maintenance practices in state. With fortums long history as an energy producer, we have served customers for decades already. Shut down can be defined as scheduled down period for a plant for scheduled maintenance for an extended period of time. The thermal power plant s overall efficiency is low as below thirty 30 percent. Asset utilization is also a function of operating rate, quality and yield losses, etc. The site is within an existing walled compound of the former suez power plant covering an area of approximately 90,549.
Starting his career as a commissioning engineer of 200 mw and 500 mw thermal sets, has given him exposure to the intricacies of behaviour of equipment and subsystems of thermal power plants. Strengthening operations and maintenance practices in. Turnaround maintenance of plant is necessary for good performance 3. Typically, water is heated into steam, which is used to drive an electrical generator. Key technical performance indicators for power plants. The installed heat exchange capacity is 225 ls for the district heating corresponding to 75 mjs thermal power. Various components of steam power plant are shown in figure 3. Maintenance administration to ensure effective implementation and control of maintenance activities. Power plant inspections using drones reduce hazardous manhours during maintenance activities while providing accurate and costeffective defect inspections and volumetric inventory analysis. The application of the thermal power plant is to produce electricity the generation of electricity, various stages come cross which has been already you know as discussed above. This book illustrates operation and maintenance practicesguidelines for economic generation and managing health of a thermal power generator beyond. Pdf a study of implementation of preventive maintenance.
Operation and maintenance of thermal power stations best. Among the statesector power plants also, there is a wide performance range with more than 90 percent plf for some. Maintenance practices and power plants operational. Lakhoua chapter 3 oxyfuel combustion in the labscale and largescale fuel fired furnaces for thermal power generations 51. The first part of power plant 4 was commissioned in. While many people in the power generation industry are familiar with annual infrared thermography surveys as part of.
Power plants that emphasized spare parts supply most among the maintenance practices studied performed better than the other plants. Operation and maintenance schedule of a steam turbine plant. Maintenance strategy optimization of a coalfired power. Working as a shiftcharge engineer in a 1600 mw super thermal power station and heading the efficiency department of a thermal power station for more than nine years has enriched him with knowledge on operation and maintenance practices, different standards of efficiency and testing procedures. Capital cost estimates for utility scale electricity. So that the transmission cost and losses are minimum. Advanced technologies of preventive maintenance for thermal. Panipat thermal power station is a project of haryana power generation company limited situated in panipat jind road at about 11kms. With predictive maintenance, power plant operators with limited resources found they were wasting much time frequently checking insignificant items.
This led to the development of reliabilitycentered maintenance, whereby maintenance tasks are prioritized according to risk using analytical methods, such as fault trees, or failuremodesand. Visual inspections and data collection at power plants can be accomplished by most professionally trained drone pilots with reasonably priced. This article provides an overview of fossilfuel power plant ffpp con. Jun 07, 2004 advanced technologies of preventive maintenance for thermal power plants overview. Shutdowns provide unique opportunities to a maintenance department not normally available during standard operation or even during. Paper open access summary of past works of maintenance. Pradip chanda, has more than 34 years of experience as a power plant professional in various capacities at the national thermal power corporation ntpc, india. After it passes through the turbine the steam is condensed in a steam condenser and recycled to where it was heated. The book provides knowledge for professionals managing power station operations, through. The proposed planworksheet has resulted in improving the maintenance program, availability and reliability of the plant. A thermal power station is a power station in which heat energy is converted to electricity.
This study develops an new maintenance methodology integrating rcm, rbm and. Pdf this paper presents the power plant maintenance scheduling and particle swarm optimization pso technique to ensure economical. A simple cycle gas turbine achieves energy conversion efficiencies from 20 to 35%. The egbin power plant is one of the largest base generating power plants of the public power. What is the role of operations and maintenance in thermal. Points of discussion thermodynamic cycles discussion on sub and supercritical boilers performance indicators and benchmarks of a power station constructional and design features of boilers boiler auxiliaries. Operation and maintenance schedule of a steam turbine. Development roadmap for maintenance services for thermal power plants.
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