The 400mw plant uses five pulverizers for bituminous and prb cases, and six for lignite. Generally, bituminous coal or brown coal is used as fuel. For a coal handling plant tecpro provides a complete range of service which include. The coal handling system shall be controlled from the following control points.
The control system, which will replace the existing system, must overcome all the drawbacks of old system. In brief we can say that receipt of coal from coal mines, weighing of coal, crushing it to required size and transferring the quantity of coal to various coal mill bunkers. Iea clean coal centre blending of coals to meet power station requirements 9. Unit1 thermal power stations introduction thermal energy is the major source of power generation in india. The increased degree of efficiency of modern coal power plants calls for an integrated coal handling management system in order to secure the coal supply in the requested quantity and quality. Water is heated, turns into steam and spins a steam turbine which drives an electrical generator. If any of you have refernce materials or related information can you please send me those details. It is a thermal power station and it handles lignite mainly. So in this article i will discuss the overall processes carried out at a coal handling plant in a coal based thermal power generating station. The controlling system used is typically a plc programmable logic controller with an hmi humanmachine interface for display connected to a central control system. Hi frnds, im doing a project based on coal handling and conveyor belts in thermal power station.
India has large deposit of coal about 170 billion tonnes, 5th largest in world. The system includes transfer tower, belt conveyor, coal shed, tripper car, runoff pond, coal control. Implementation of quality management system for coal handling. It also processes the raw coal to make it suitable for boiler opeartion. The first four units was bifurcated from the total 8 units of the plant. Coal is unloaded from the wagons to a moving underground conveyor belt. The system, which is suggested, will work by only using tachometer, load cell and electronic cards in place of relays. After burning of coal, 40 % of total coal consumption is converted into ash which need to be properly disposedoff from the thermal power plant. In order to cover these requirements abb has developed a modular management system as shown in fig. Jun 30, 20 it also processes the raw coal to make it suitable for boiler opeartion. Strengthening operations and maintenance practices in. In a coal based thermal power plant, the initial process in the power generation is coal handling. Dec 05, 2015 this video shows the coal handling system which transfers coal from jetty to raw coal bunkers. More than 60% of electric power is produced by steam plants in india.
The whole system will work in an intelligent procedure which is faster, reliable and less maintaining cost. In thermal power plants, coal is used as a fuel for generating electricity. Optimize power plant operations national association. It aimed at not only reducing the generating capacity deficit, but also providing the muchneeded baseload backup for the then largely seasonal hydropowerbased system in tamil nadu. The north madras thermal power project the project1 was an integral part of the national power development program. Among the statesector power plants also, there is a wide performance range with more than 90 percent plf for some. Technology and thermal efficiency of the power plants, which has a direct influence on both. The plant load factor plf of statesector thermal power plants in india in 200607 was on an average 70. Eia report for mw coal based thermal power plant at naraj marthapur, cuttack, orissa sgs india private limited 170 8. Find details of companies offering coal handling plant at best price. In the coal based thermal power plants, where the initial process to generate electricity is the handling the huge or tremendous amount of coal.
Coal handling plant of thermal power station seminar. Stacking and reclaiming process on coal handling plants in thermal power plant malik tv. Consequently, stocking of coal has to be done consciously and by respecting basing rules. The heat rate of a plant is the amount of fuel energy input needed btu, higher heating value basis to produce 1 kwh of net electrical energy output. Type of application % consumptive water cooling tower make up 85% boiler water make up 3% potable drinking water 1. The coal is stored in either dead storage or in live storage. Operation and maintenance of coal handling system in. A simple cycle gas turbine achieves energy conversion efficiencies from 20 to 35%. The basic theory of condition based preventive maintenance is to propose routine inspection to identify any degradation in the integrity of the systems during their service life and to provide an early warning in order that remedial action can be taken. Currently mediumsized power plant coal handling system used in. The power plant is one of the coal based power plants of hpgcl. Stacking and reclaiming process on coal handling plants in. Chapter 7 coal if we as a nation are to benefit in the future from our enormous, lowcost coal reserves, a variety of efforts are necessary to 1 develop and demonstrate new clean coal technologies. This video shows stacking and reclaiming operations process in chp.
Hope some more postings which is related to power plant safety process, construction, health hazards, etc. Coal handling plant chp is the main and major key system to transfer ton of coal fuel to the boiler plant. Where possible, chapter 4 includes case studies and examples of coal blending sites and practices in various countrie s around the world. Pdf operation and maintenance of coal handling system in. Blending of coals to meet power station requirements. When evaluating clients activity andor transactions in this sector, particular attention is paid to the following aspects. In the thermal power plants maximum requirements of fuel is a coal. Maintenance of coal crushing equipment of coal handling plant system in the thermal power plant is very important for plant efficiency improvement. Operation and maintenance of coal handling system in thermal.
The huge amount of coal is usually supplied through railways. Assumption is same cv of coal goes into the power plant in both cases. This is the responsibility and duty of the chp and its staff. I want to develop a timing sequence for the conveyor system that is used in thermal power station. Our trials and technology analysis indicated a higher levelized cost of coal when low cv coal is subjected to drying through above method when compared with buying higher calorific value coal. Operation and maintenance of coal handling system in thermal power plant j. 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. Coal is transported in thermal power station either by railways,roadways or rope ways. Usually what are the problems occuring with handling of coal and conveyors system. Affects combustion efficiency and boiler efficiency causes clinkering and slagging.
Other than stacking, the stacker does three basic movements. Then me attaching a pdf file which is particularly about power plants. Presentation on coal handling systems arnab chakraborty. Water conservation in coalfired power plants united states energy. The coal handling plant chp in a thermal power station covers unloading of coal, its crushing, storage and filling of boiler bunkers. Pdf there is need for innovation in the areas of coal handling and conveying technology in indian thermal power plants to address issues of capacity. Here you can download the free lecture notes of power plant engineering pdf notes ppe pdf notes materials with multiple file links to download. Power consumption is higher compared to conventional coal drying processes. Coal handling plant of thermal power station seminar reportpdfppt download abstract. Coal plays a vital role in electricity generation worldwide. I am glad that the standard technical specification for main plant package has been finalized by the committee.
Ash handling system in thermal power plant ash handling. A thermal power station is a power station in which heat energy is converted to electric power. Necessity of coal handling system a 600mw power plant handles about 7200 tons of coals per day. So in this article i will discuss the overall processes carried out at a coal handling plant in a coal based. Maintenance of critical equipments for coal handling plants chp. Usually coal will be transported to plant through railway wagons if it is a pithead power station t. Coal handling system coal handling plant in thermal. Coal handling plant of thermal power station seminar report pdf ppt download abstract. In a coal based thermal power plant, coal is transported from coal mines to the generating station. Implementation of quality management system for coal. The coal handling portion of a power plant can encompass every piece of.
However, some negative developments are observed in various characteristics of coal and important problems may emerge because of its long time storing in open areas. Areas of a coalfired power plant that give rise to efficiency loss2. This video shows the coal handling system which transfers coal from jetty to raw coal bunkers. Panipat thermal power station is situated at a distance of about 12 km. Automated materials handling for coalfired power plants. Pdf compared with actual situation of the current thermal power plant, this paper studies operation process of coal handling system in thermal power. Power plant engineering notes pdf ppe notes pdf book starts with the topics introduction, boiler, classification of boilers, fire tube boiler, water tube boilers, introduction, classification of. Limited india for 5 years, where he designed several coal and ash handling systems for thermal power plants. Many utility systems in the world have power plants operating with fossil fuel. The first four units was bifurcated from the total 8 units of the plant, so that to form panipat thermal power station i and ii. He has published several research papers in the area of bulk solids handling in top international journals. Discuss the sequence of startupstopping of the coal and ash handling plant 7 operation of power plant theory duration hh. Super heated system is used as energy carrier medium and it.
Peter muhlbach, abb automation gmbh, germany, discusses a complete materials handling solution for coalfired power plants. Coal handling plant of thermal power station seminar report. Pdf automation of coal handling plant researchgate. To feed the thermal power stations continuously with coal of specified properties. Since it replaces combustible matter, it decreases the heat content per kg of coal. In a coal based power plant coal is transported from coal mines to the power plant by railway in wagons or in a merrygoround system. Coal handling plant in a thermal power generating station. I want to develop timing sequence for the operation of conveyor belts in thermal power station. Ash handling system of a thermal power plant amay jain. It is the metric most often used in the electric power generation industry to track and report the performance of thermal power plants. The coal has to size, processed, and handled which should be done effectively and efficiently. Pdf a need for innovation coal handling and conveying in thermal.
Coal handling system in thermal power plant youtube. Coal is used as primary fuel for generation of electricity however light diesel oil l. Strengthening operations and maintenance practices in state. Moisture in coal must be transported, handled and stored.