Thermal Power Plant Working. At present 5. 4. 0. MW Data Source CEA, as on 3. India is from Coal Based Thermal Power Station. A coal based thermal power plant converts the chemical energy of the coal into electrical energy. This is achieved by raising the steam in the boilers, expanding it through the turbine and coupling the turbines to the generators which converts mechanical energy into electrical energy. Coal Based Power Station. Uranus cant seem to catch a break these days. Besides spinning on its side like the drunkard of the solar system and being the butt of everyones jokes, new. Introductory overview. In a coal based power plant coal is transported from coal mines to the power plant by railway in wagons or in a merry go round system. BP is one of the worlds leading integrated oil and gas companies. We provide customers with fuel for transportation, energy for heat and light, lubricants to keep. Coal is unloaded from the wagons to a moving underground conveyor belt. This coal from the mines is of no uniform size. So it is taken to the Crusher house and crushed to a size of 2. From the crusher house the coal is either stored in dead storage generally 4. Raw coal from the raw coal bunker is supplied to the Coal Mills by a Raw Coal Feeder. The Coal Mills or pulverizer pulverizes the coal to 2. The powdered coal from the coal mills is carried to the boiler in coal pipes by high pressure hot air. The pulverized coal air mixture is burnt in the boiler in the combustion zone. Generally in modern boilers tangential firing system is used i. The temperature in fire ball is of the order of 1. C. The boiler is a water tube boiler hanging from the top. Water is converted to steam in the boiler and steam is separated from water in the boiler Drum. The saturated steam from the boiler drum is taken to the Low Temperature Superheater, Platen Superheater and Final Superheater respectively for superheating. The superheated steam from the final superheater is taken to the High Pressure Steam Turbine HPT. In the HPT the steam pressure is utilized to rotate the turbine and the resultant is rotational energy. From the HPT the out coming steam is taken to the Reheater in the boiler to increase its temperature as the steam becomes wet at the HPT outlet. After reheating this steam is taken to the Intermediate Pressure Turbine IPT and then to the Low Pressure Turbine LPT. The outlet of the LPT is sent to the condenser for condensing back to water by a cooling water system. This condensed water is collected in the Hotwell and is again sent to the boiler in a closed cycle. The rotational energy imparted to the turbine by high pressure steam is converted to electrical energy in the Generator. Detailed Project Report Solar Power Plant Pdf To Excel' title='Detailed Project Report Solar Power Plant Pdf To Excel' />Diagram of a typical coal fired thermal power station. Coal Based Thermal Power Plant. Principal. Coal based thermal power plant works on the principal of Modified Rankine Cycle. Modified rankine Cycle. Components of Coal Fired Thermal Power Station i Fuel preparation system In coal fired power stations, the raw feed coal from the coal storage area is first crushed into small pieces and then conveyed to the coal feed hoppers at the boilers. The coal is next pulverized into a very fine powder, so that coal will undergo complete combustion during combustion process. For example, the are used to pulverize coal for combustion in the steam generating furnaces of fossil fuel power plants. Web portal for buildingrelated information with a whole building focus provided by the National Institute of Building Sciences. Areas include Design Guidance. Xcel Energy provides the energy that powers millions of homes and businesses across eight Western and Midwestern states. Sticky Notes Gadget For Windows 7 Download. Learn more. Get the latest news and analysis in the stock market today, including national and world stock market news, business news, financial news and more. Advantages of coal based thermal Power Plant. They can respond to rapidly changing loads without difficulty A portion of the steam generated can be used as a process. Types of Pulverisers Ball and Tube mills Ring and Ball mills MPS Ball mill Demolitionii Dryers  they are used in order to remove the excess moisture from coal mainly wetted during transport. As the presence of moisture will result in fall in efficiency due to incomplete combustion and also result in CO emission. Magnetic separators coal which is brought may contain iron particles. These iron particles may result in wear and tear. The iron particles may include bolts, nuts wire fish plates etc. The coal we finally get after these above process are transferred to the storage site. Purpose of fuel storage is two  Fuel storage is insurance from failure of normal operating supplies to arrive. Storage permits some choice of the date of purchase, allowing the purchaser to take advantage of seasonal market conditions. Storage of coal is primarily a matter of protection against the coal strikes, failure of the transportation system general coal shortages. There are two types of storage Live Storage boiler room storage storage from which coal may be withdrawn to supply combustion equipment with little or no remanding is live storage. This storage consists of about 2. The live storage can be provided with bunkers coal bins. Bunkers are enough capacity to store the requisite of coal. From bunkers coal is transferred to the boiler grates. Dead storage stored for future use. Mainly it is for longer period of time, and it is also mandatory to keep a backup of fuel for specified amount of days depending on the reputation of the company and its connectivity. There are many forms of storage some of which are. Stacking the coal in heaps over available open ground areas. As in I. But placed under cover or alternatively in bunkers. Allocating special areas surrounding these with high reinforced concerted retaking walls. A Boiler or steam generator essentially is a container into which water can be fed and steam can be taken out at desired pressure, temperature and flow. This calls for application of heat on the container. For that the boiler should have a facility to burn a fuel and release the heat. The functions of a boiler thus can be stated as To convert chemical energy of the fuel into heat energy. To transfer this heat energy to water for evaporation as well to steam for superheating. The basic components of Boiler are Furnace and Burners. Steam and Superheatinga       Low temperature superheaterb        Platen superheaterc       Final superheater. It is located below the LPSH in the boiler and above pre heater. It is there to improve the efficiency of boiler by extracting heat from flue gases to heat water and send it to boiler drum. Advantages of Economiser include. Fuel economy used to save fuel and increase overall efficiency of boiler plant. Reducing size of boiler as the feed water is preheated in the economiser and enter boiler tube at elevated temperature. The heat transfer area required for evaporation reduced considerably. The heat carried out with the flue gases coming out of economiser are further utilized for preheating the air before supplying to the combustion chamber. Gas Turbine Simulation Programs. It is a necessary equipment for supply of hot air for drying the coal in pulverized fuel systems to facilitate grinding and satisfactory combustion of fuel in the furnace. Power plant furnaces may have a reheater section containing tubes heated by hot flue gases outside the tubes. Exhaust steam from the high pressure turbine is rerouted to go inside the reheater tubes to pickup more energy to go drive intermediate or lower pressure turbines. Steam turbines have been used predominantly as prime mover in all thermal power stations. The steam turbines are mainly divided into two groups Impulse turbine. Impulse reaction turbine. The turbine generator consists of a series of steam turbines interconnected to each other and a generator on a common shaft. There is a high pressure turbine at one end, followed by an intermediate pressure turbine, two low pressure turbines, and the generator. The steam at high temperature 5. The condenser condenses the steam from the exhaust of the turbine into liquid to allow it to be pumped. If the condenser can be made cooler, the pressure of the exhaust steam is reduced and efficiency of the cycle increases. The functions of a condenser are 1 To provide lowest economic heat rejection temperature for steam. To convert exhaust steam to water for reserve thus saving on feed water requirement. To introduce make up water. We normally use surface condenser although there is one direct contact condenser as well. In direct contact type exhaust steam is mixed with directly with D. M cooling water. Boiler feed pump is a multi stage pump provided for pumping feed water to economiser. BFP is the biggest auxiliary equipment after Boiler and Turbine.