At present 54.09% or 93918.38 MW (Data Source CEA, as on 31/03/2011) of total electricity production in 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.
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. 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 20mm. From the crusher house the coal is either stored in dead storage( generally 40 days coal supply) which serves as coal supply in case of coal supply bottleneck or to the live storage(8 hours coal supply) in the raw coal bunker in the boiler house. 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 200 mesh size. 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.e. the coal nozzles/ guns form tangent to a circle. The temperature in fire ball is of the order of 1300 deg.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.
Diagram of a typical coal-fired thermal power station
Principal
Coal based thermal power plant works on the principal of Modified Rankine Cycle.
Components of Coal Fired Thermal Power Station:
- Coal Preparation
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.
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 24 to 30 hrs. of coal requirements of the plant and is usually a covered storage in the plant near the boiler furnace. 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.
- Boiler and auxiliaries
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 Superheating
a. Low temperature superheater
b. Platen superheater
c. Final superheater
- Economiser
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
1) Fuel economy: – used to save fuel and increase overall efficiency of boiler plant.
2) 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.
- Air Preheater
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. 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
- Reheater
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
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 (536 ‘c to 540 ‘c) and pressure (140 to 170 kg/cm2) is expanded in the turbine.
- Condenser
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.
2) To convert exhaust steam to water for reserve thus saving on feed water requirement.
3) 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
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. It consumes about 4 to 5 % of total electricity generation.
- Cooling tower
The cooling tower is a semi-enclosed device for evaporative cooling of water by contact with air. The hot water coming out from the condenser is fed to the tower on the top and allowed to tickle in form of thin sheets or drops. The air flows from bottom of the tower or perpendicular to the direction of water flow and then exhausts to the atmosphere after effective cooling.
The cooling towers are of four types: -
1. Natural Draft cooling tower
2. Forced Draft cooling tower
3. Induced Draft cooling tower
4. Balanced Draft cooling tower
- Fan or draught system
In a boiler it is essential to supply a controlled amount of air to the furnace for effective combustion of fuel and to evacuate hot gases formed in the furnace through the various heat transfer area of the boiler. This can be done by using a chimney or mechanical device such as fans which acts as pump.
i) Natural draught
When the required flow of air and flue gas through a boiler can be obtained by the stack (chimney) alone, the system is called natural draught. When the gas within the stack is hot, its specific weight will be less than the cool air outside; therefore the unit pressure at the base of stack resulting from weight of the column of hot gas within the stack will be less than the column of extreme cool air. The difference in the pressure will cause a flow of gas through opening in base of stack. Also the chimney is form of nozzle, so the pressure at top is very small and gases flow from high pressure to low pressure at the top.
ii) Mechanized draught
There are 3 types of mechanized draught systems
1) Forced draught system
2) Induced draught system
3) Balanced draught system
Forced draught: – In this system a fan called Forced draught fan is installed at the inlet of the boiler. This fan forces the atmospheric air through the boiler furnace and pushes out the hot gases from the furnace through superheater, reheater, economiser and air heater to stacks.
Induced draught: – Here a fan called ID fan is provided at the outlet of boiler, that is, just before the chimney. This fan sucks hot gases from the furnace through the superheaters, economiser, reheater and discharges gas into the chimney. This results in the furnace pressure lower than atmosphere and affects the flow of air from outside to the furnace.
Balanced draught:-In this system both FD fan and ID fan are provided. The FD fan is utilized to draw control quantity of air from atmosphere and force the same into furnace. The ID fan sucks the product of combustion from furnace and discharges into chimney. The point where draught is zero is called balancing point.
- Ash handling system
The disposal of ash from a large capacity power station is of same importance as ash is produced in large quantities. Ash handling is a major problem.
i) Manual handling: While barrows are used for this. The ash is collected directly through the ash outlet door from the boiler into the container from manually.
ii) Mechanical handling: Mechanical equipment is used for ash disposal, mainly bucket elevator, belt conveyer. Ash generated is 20% in the form of bottom ash and next 80% through flue gases, so called Fly ash and collected in ESP.
iii) Electrostatic precipitator: From air preheater this flue gases (mixed with ash) goes to ESP. The precipitator has plate banks (A-F) which are insulated from each other between which the flue gases are made to pass. The dust particles are ionized and attracted by charged electrodes. The electrodes are maintained at 60KV.Hammering is done to the plates so that fly ash comes down and collect at the bottom. The fly ash is dry form is used in cement manufacture.
- Generator
Generator or Alternator is the electrical end of a turbo-generator set. It is generally known as the piece of equipment that converts the mechanical energy of turbine into electricity. The generation of electricity is based on the principle of electromagnetic induction.
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 steam in different industries
- Steam engines and turbines can work under 25 % of overload continuously
- Fuel used is cheaper
- Cheaper in production cost in comparison with that of diesel power stations
Disadvantages of coal based thermal Power Plant
- Maintenance and operating costs are high
- Long time required for erection and putting into action
- A large quantity of water is required
- Great difficulty experienced in coal handling
- Presence of troubles due to smoke and heat in the plant
- Unavailability of good quality coal
- Maximum of heat energy lost
- Problem of ash removing
Major Thermal Power Plants in India
| Power station | Operator | Location | District | State | Sector | Region | Unit wise Capacity | Installed Capacity (MW) |
| Rajghat Power Station | IPGCL | Delhi | Delhi | NCT Delhi | State | Northern | 2 x 67.5 | 135.00 |
| Deenbandhu Chhotu Ram Thermal Power Station | HPGCL | Yamunanagar | Yamunanagar | Haryana | State | Northern | 2 x 300 | 600.00 |
| Panipat Thermal Power Station I | HPGCL | Assan | Panipat | Haryana | State | Northern | 4 x 110 | 440.00 |
| Panipat Thermal Power Station II | HPGCL | Assan | Panipat | Haryana | State | Northern | 2 x 210, 2 x 250 | 920.00 |
| Faridabad Thermal Power Station | HPGCL | Faridabad | Faridabad | Haryana | State | Northern | 1 x 55 | 55.00 |
| Rajiv Gandhi Thermal Power Station | HPGCL | Khedar | Hisar | Haryana | State | Northern | 1 x 600 | 600.00 |
| Guru Nanak dev TP | PSPCL | Bathinda | Bathinda | Punjab | State | Northern | 4 x 110 | 440.00 |
| Guru Hargobind TP | PSPCL | Lehra Mohabbat | Bathinda | Punjab | State | Northern | 2 x 210, 2 x 250 | 920.00 |
| Guru Gobind Singh Super Thermal Power Plant | PSPCL | Ghanauli | Rupnagar | Punjab | State | Northern | 6 x 210 | 1260.00 |
| Suratgarh Super Thermal Power Plant | RVUNL | Suratgarh | Sri Ganganagar | Rajasthan | State | Northern | 6 x 250 | 1500.00 |
| Kota Super Thermal Power Plant | RVUNL | Kota | Kota | Rajasthan | State | Northern | 2 x 110, 3 x 210, 2 x 195 | 1240.00 |
| Giral Lignite Power Plant | RVUNL | Thumbli | Barmer | Rajasthan | State | Northern | 2 x 125 | 250.00 |
| Chhabra Thermal Power Plant | RVUNL | Mothipura | Baran | Rajasthan | State | Northern | 2 x 250 | 500.00 |
| Orba Thermal Power Station | UPRVUNL | Obra | Sonebhadra | Uttar Pradesh | State | Northern | 1 x 40, 3 x 94, 5 x 200 | 1,322.00 |
| Anpara Thermal Power Station | UPRVUNL | Anpara | Sonebhadra | Uttar Pradesh | State | Northern | 3 x 210, 2 x 500 | 1630.00 |
| Panki Thermal Power Station | UPRVUNL | Panki | Kanpur | Uttar Pradesh | State | Northern | 2 x 105 | 210.00 |
| Parichha Thermal Power Station | UPRVUNL | Parichha | Jhansi | Uttar Pradesh | State | Northern | 2 x 110, 2 x 210 | 640.00 |
| Harduaganj Thermal Power Station | UPRVUNL | Harduaganj | Aligarh | Uttar Pradesh | State | Northern | 1 x 55, 1 x 60, 1 x 105 | 220.00 |
| Badarpur Thermal power plant | NTPC | Badarpur | New Delhi | NCT Delhi | Central | Northern | 3 x 95, 2 x 210 | 705.00 |
| Singrauli Super Thermal Power Station | NTPC | Shaktinagar | Sonebhadra | Uttar Pradesh | Central | Northern | 5 x 200, 2 x 500 | 2000.00 |
| Barsingsar Lignite Power Plant | NLC | Barsingsar | Bikaner | Rajasthan | Central | Northern | 1 x 125 | 125.00 |
| Rihand Thermal Power Station | NTPC | Rihand Nagar | Sonebhadra | Uttar Pradesh | Central | Northern | 4 x 500 | 2000.00 |
| National Capital Thermal Power Plant | NTPC | Vidyutnagar | Gautam Budh Nagar | Uttar Pradesh | Central | Northern | 4 x 210, 2 x 490 | 1820.00 |
| Feroj Gandhi Unchahar Thermal Power Plant | NTPC | Unchahar | Raebareli | Uttar Pradesh | Central | Northern | 5 x 210 | 1050.00 |
| Tanda Thermal Power Plant | NTPC | Vidyutnagar | Ambedkar Nagar | Uttar Pradesh | Central | Northern | 4 x 110 | 440.00 |
| Raj west Lignite Power Plant | JSW | Barmer | Barmer | Rajasthan | Private | Northern | 1 x 135 | 135.00 |
| VS Lignite Power Plant | KSK | Gurha | Bikaner | Rajasthan | Private | Northern | 1 x 125 | 125.00 |
| Rosa Thermal Power Plant Stage I | Reliance | Rosa | Shahjahanpur | Uttar Pradesh | Private | Northern | 2 x 300 | 600.00 |
| Northern | 28 | 104 | ||||||
| Ukai Thermal Power Station | GSECL | Ukai dam | Tapi | Gujarat | State | Western | 2 x 120, 2 x 200, 1 x 210 | 850 |
| Gandhinagar Thermal Power Station | GSECL | Gandhinagar | Gandhinagar | Gujarat | State | Western | 2 x 120, 3 x 210 | 870 |
| Wanakbori Thermal Power Station | GSECL | Wanakbori | Kheda | Gujarat | State | Western | 7 x 210 | 1470 |
| Sikka Thermal Power Station | GSECL | Jamnagar | Jamnagar | Gujarat | State | Western | 2 x 120 | 240 |
| Dhuvaran Thermal Power Station | GSECL | Khambhat | Anand | Gujarat | State | Western | 2 x 110 | 220 |
| Kutch Thermal Power Station | GSECL | Panandhro | Kutch | Gujarat | State | Western | 2 x 70, 2 x 75 | 290 |
| Surat Thermal Power Station | GIPCL | Nani Naroli | Surat | Gujarat | State | Western | 4 x 125 | 500 |
| Akrimota Thermal Power Station | GMDC | Chher Nani | Kutch | Gujarat | State | Western | 2 x 125 | 250 |
| Satpura Thermal Power Station | MPPGCL | Sarni | Betul | Madhya Pradesh | State | Western | 5 x 37.5, 1 x 200, 3 x 210 | 1017.5 |
| Sanjay Gandhi Thermal Power Station | MPPGCL | Birsinghpur | Umaria | Madhya Pradesh | State | Western | 4 x 210, 1 x 500 | 1340 |
| Amarkantak Thermal Power Station | MPPGCL | Chachai | Anuppur | Madhya Pradesh | State | Western | 2 x 120, 1 x 210 | 450 |
| Korba East Thermal Power Plant | CSPGCL | Korba | Chattisgarh | State | Western | 4 x 50, 2 x 120 | 440 | |
| Dr Shyama Prasad Mukharjee Thermal Power Plant | CSPGCL | Korba | Chattisgarh | State | Western | 2 x 250 | 500 | |
| Korba West Hasdeo Thermal Power Plant | CSPGCL | Korba | Chattisgarh | State | Western | 4 x 210 | 840 | |
| Koradi Thermal Power Station | MAHAGENCO | Koradi | Nagpur | Maharastra | State | Western | 4 x 105, 1 x 200, 2 x 210 | 1040 |
| Nashik Thermal Power Station | MAHAGENCO | Nashik | Nashik | Maharastra | State | Western | 2 x 125, 3 x 210 | 880 |
| Bhusawal Thermal Power Station | MAHAGENCO | Deepnagar | Jalgaon | Maharastra | State | Western | 1 x 50, 2 x 210 | 470 |
| Paras Thermal Power Station | MAHAGENCO | Vidyutnagar | Akola | Maharastra | State | Western | 1 x 55, 2 x 250 | 555 |
| Parli Thermal Power Station | MAHAGENCO | Parli-Vaijnath | Beed | Maharastra | State | Western | 2 x 20, 3 x 210, 2 x 250 | 1170 |
| Kaparkheda Thermal Power Station | MAHAGENCO | Kaparkheda | Nagpur | Maharastra | State | Western | 4 x 210 | 840 |
| Chandrapur Super Thermal Power Station | MAHAGENCO | Chandrapur | Chandrapur | Maharastra | State | Western | 4 x 210, 3 x 500 | 2340 |
| Vindhyachal Super Thermal Power Station | NTPC | Vidhya Nagar | Sidhi | Madhya Pradesh | Central | Western | 6 x 210, 4 x 500 | 3260 |
| Korba Super Thermal Power Plant | NTPC | Jamani Palli | Korba | Chattisgarh | Central | Western | 3 x 200, 3 x 500 | 2100 |
| Sipat Thermal Power Plant | NTPC | Sipat | Bilaspur | Chattisgarh | Central | Western | 2 x 500 | 1000 |
| Bhilai Expansion Power Plant | NTPC-SAIL(JV) | Bhilai | Durg | Chattisgarh | Central | Western | 2 x 250 | 500 |
| Sabarmati Thermal Power Station | Torrent | Ahamadabad | Gujarat | Private | Western | 1 x 60, 1 x 120, 2 x 110 | 400 | |
| Mundra Thermal Power Station | Adani | Mundra | Kutch | Gujarat | Private | Western | 2 x 330 | 660 |
| Jindal Megha Power Plant | jindal | Tamnar | Raigarh | Chattisgarh | Private | Western | 4 x 250 | 1000 |
| Lanco Amarkantak Power Plant | Lanco | Pathadi | Korba | Chattisgarh | Private | Western | 2 x 300 | 600 |
| Trombay Thermal Power Station | Tata | Trombay | Mumbai | Maharastra | Private | Western | 1 x 150, 2 x 500, 1 x 250 | 1400 |
| Dahanu Thermal Power Station | Reliance | Dahanu | Thane | Maharastra | Private | Western | 2 x 250 | 500 |
| Wardha Warora Power Station | KSK | Warora | Chandrapur | Maharastra | Private | Western | 1 x 135 | 135 |
| Western | 32 | 135 | ||||||
| Ramagundam B Thermal Power Station | APGENCO | Ramagundam | Karimnagar | Andhra Pradesh | State | Southern | 1 x 62.5 | 62.5 |
| Kothagudem Thermal Power Station | APGENCO | Paloncha | Khammam | Andhra Pradesh | State | Southern | 4 x 60, 4 x 120 | 720 |
| Kothagudem Thermal Power Station V Stage | APGENCO | Paloncha | Khammam | Andhra Pradesh | State | Southern | 2 x 250 | 500 |
| Dr Narla Tatarao TPS | APGENCO | Ibrahimpatnam | Krishna | Andhra Pradesh | State | Southern | 6 x 210, 1 x 500 | 1760 |
| Rayalaseema Thermal Power Station | APGENCO | Cuddapah | YSR | Andhra Pradesh | State | Southern | 4 x 210 | 840 |
| Kakatiya Thermal Power Station | APGENCO | Chelpur | Warangal | Andhra Pradesh | State | Southern | 1 x 500 | 500 |
| Raichur Thermal Power Station | KPCL | Raichur | Raichur | Karnataka | State | Southern | 7 x 210, 1 x 250 | 1720 |
| Bellary Thermal Power Station | KPCL | Kudatini | Bellary | Karnataka | State | Southern | 1 x 500 | 500 |
| North Chennai Thermal Power Station | TNEB | Athipattu | Thiruvallore | Tamilnadu | State | Southern | 3 x 210 | 630 |
| Ennore Thermal Power Station | TNEB | Ennore | Chennai | Tamilnadu | State | Southern | 2 x 60, 3 x 110 | 450 |
| Mettur Thermal Power Station | TNEB | Metturdam | Salem | Tamilnadu | State | Southern | 4 x 210 | 840 |
| Tuticorin Thermal Power Station | TNEB | Tuticorin | Tuticorin | Tamilnadu | State | Southern | 5 x 210 | 1050 |
| NTPC Ramagundam | NTPC | Jyothi Nagar | Karimnagar | Andhra Pradesh | Central | Southern | 3 x 200, 4 x 500 | 2600 |
| Simhadri Super Thermal Power Plant | NTPC | Simhadri | Visakhapatnam | Andhra Pradesh | Central | Southern | 2 x 500 | 1000 |
| Neyveli Thermal Power Station – I | NLC | Neyveli | Cuddalore | Tamilnadu | Central | Southern | 6 x 50, 3 x 100, 2 x 210 | 1020 |
| Neyveli Thermal Power Station – II | NLC | Neyveli | Cuddalore | Tamilnadu | Central | Southern | 7 x 210 | 1470 |
| JSW EL-SBU-I Power Plant | JSW | Vijayanagar | Bellary | Karnataka | Private | Southern | 2 x 130 | 260 |
| JSW EL-SBU-II Power Plant | JSW | Vijayanagar | Bellary | Karnataka | Private | Southern | 2 x 300 | 600 |
| Udupi Thermal Power Plant | Lanco | Nandikoor | Udupi | Karnataka | Private | Southern | 1 x 600 | 600 |
| Neyveli Zero Unit | STPS | Neyveli | Cuddalore | Tamilnadu | Private | Southern | 1 x 250 | 250 |
| Southern | 20 | 83 | ||||||
| Barauni Thermal Power Station | BSEB | Barauni | Begusarai | Bihar | State | Eastern | 2 x 50, 2 x 105 | 310 |
| Muzafferpur Thermal Power Station | KBUCL | Kanti | Muzaffarpur | Bihar | State | Eastern | 2 x 110 | 220 |
| Patratu Thermal Power Station | JSEB | Patratu | Jharkhand | State | Eastern | 4 x 40, 2 x 90, 2 x 105, 2 x 110 | 770 | |
| Tenughat Thermal Power Station | TVNL | Jharkhand | State | Eastern | 2 x 210 | 420 | ||
| Kolaghat Thermal Power Station | WBPDCL | Mecheda | East Midnapore | West Bengal | State | Eastern | 6 x 210 | 1260 |
| Bakreshwar Thermal Power Station | WBPDCL | Suri | Birbhum | West Bengal | State | Eastern | 5 x 210 | 1050 |
| Bandel Thermal Power Station | WBPDCL | Hooghly | West Bengal | State | Eastern | 4 x 60, 1 x 210 | 450 | |
| Santaldih Thermal Power Station | WBPDCL | Purulia | West Bengal | State | Eastern | 4 x 120, 1 x 250 | 730 | |
| Sagardigi Thermal Power Station | WBPDCL | Monigram | Murshidabad | West Bengal | State | Eastern | 2 x 300 | 600 |
| Durgapur Thermal Power Plant | DPL | Durgapur | Bardhaman | West Bengal | State | Eastern | 2 x 30, 1 x 70, 2 x 75, 1 x 110, 1 x 300 | 690 |
| IB Thermal Power Plant | OPGCL | Banharpali | Jharsuguda | Orissa | State | Eastern | 8 x 120 | 960 |
| Captive Power Plant | NALCO | Angul | Angul | Orissa | State | Eastern | 2 x 210 | 420 |
| Kahalgaon Super Thermal Power Station | NTPC | Kahalgaon | Bhagalpur | Bihar | Central | Eastern | 4 x 210, 3 x 500 | 2340 |
| Bokaro Thermal Power Station B | DVC | Bokaro | Bokaro | Jharkhand | Central | Eastern | 3 x 210 | 630 |
| Chandrapura Thermal Power Station | DVC | Chandrapura | Bokaro | Jharkhand | Central | Eastern | 3 x 130, 3 x 120, 2 x 250 | 1250 |
| Farakka Super Thermal Power Station | NTPC | Nagarun | Murshidabad | West Bengal | Central | Eastern | 3 x 200, 2 x 500 | 1600 |
| Durgapur Thermal Power Station | DVC | Durgapur | Bardhaman | West Bengal | Central | Eastern | 1 x 140, 1 x 210 | 350 |
| Mejia Thermal Power Station | DVC | Durlavpur | Bankura | West Bengal | Central | Eastern | 4 x 210, 2 x 250 | 1340 |
| Talcher Super Thermal Power Station | NTPC | Kaniha | Angul | Orissa | Central | Eastern | 6 x 500 | 3000 |
| Talcher Thermal Power Station | NTPC | Talcher | Angul | Orissa | Central | Eastern | 4x 60, 2 x 110 | 460 |
| Budge Budge Thermal Power Plant | CESC | Achipur | South 24 Paraganas | West Bengal | Private | Eastern | 3 x 250 | 750 |
| Titagarh Thermal Power Station | CESC | North 24 Paraganas | West Bengal | Private | Eastern | 4 x 60 | 240 | |
| CESC Southern Generating Station | CESC | West Bengal | Private | Eastern | 3 x 67.5 | 135 | ||
| Jojobera TPP | Tata | Jojobera | Jamshedpur | Jharkhand | Private | Eastern | 3 x 120,1×67.5 | 427.5 |
| Jharsuguda TPP | Vedanta | Jharsuguda | Jharsuguda | Orisa | Private IPP | Eastern | 4×600 | 2400 |
| Vedanta Aluminim CPP | Vedanta | Jharsuguda | Jharsuguda | Orisa | Private CPP | Eastern | 9×135 | 1215 |
| Eastern | 22 | 104 | ||||||
| Total | 102 | 426 |
81 Responses to Thermal Power Plant
Leave a Reply to Tanu Saxena Cancel reply
Featured Solar Page by
We hereby require thermal power companies contact details for transportation of black oil by road tankers
With Rergars
Neeraj (9999673105)
Dear Sir,
Kind request to please share installed capacities and utilisation or PLF of all Thermal power plants in India…
What would be the reason for their being located at those place ect. Kindly share.
I would like to know what capacity of booler is required for 10 mw thermal power plant.
Tk.
Sandeep maheshwari
+91 9351549294
Dear Sandeep,
Please rite to info@indianpowersector.com, with complete details.
I would like what capacity of boiler needed for 10 mw power plant
SUBJECT- SCALEBAN:: History created at NTPC by installing our patented product in 500MW power plant to achieve ZERO DISCHARGE WITH ZERO SCALING in cooling water system.
Dear Sir,
We are proud in all our modesty to inform your good self that we have successfully commissioned the ‘SCALEBAN’ in the 500MW power plant of one of the leading and most reputed power producer of the world i.e. NTPC at their Dadri (U.P.) unit (Please find attached photographs for the same). The installation in the other 500MW power plant will be done in the month of October 2014 during the proposed maintenance shutdown of the concerned power plant.
You will be pleased to note that M/s NTPC limited have placed an order for the supply of Scaleban equipment for the condenser and auxiliary system of 500MW X 2Nos power plant at Dadri (U.P.) on 06thNovember 2013.
M/s NTPC limited has installed Scaleban equipment in their power plant with an objective to operate the cooling tower at a very high COC level of 15 with zero scaling in condenser and other heat exchangers. Currently, they are operating the cooling tower at 2.5COC and yet facing a severe problem of scale deposition in the system.
This is the biggest achievement in the history of Scaleban equipment, as the most reputed power producer of the country has joined hands with us to establish the sustainable, most efficient and cost effective solution for zero discharge with zero scaling. NTPC, after gaining confidence in our technology through in depth study of theoretical aspects and in situ analysis of the performance of the equipment at our client site has joined us in our mission to conserve water with zero scaling.
The prevailing situation is quite alarming and dictates to the power industry to switch over to the sustainable & efficient means of the water conservation with zero scaling to achieve zero liquid discharge.
The industry is very well familiar with the prevalent losses in productivity and profitability due to zero discharge norms and scale deposition in condensers & other heat ex-changers.
It is evident that conventional methods for stopping scale deposition in heat ex-changer surfaces are not efficient enough to target this specific problem of the industry. Also the conventional methods available to achieve zero liquid discharge (ZLD) are very costly to establish and operate and so we are encouraged to present our revolutionary technology to help the industry stakeholder to get Scale free condenser/heat ex-changer and to design most efficient, cost effective and sustainable solution for Zero Liquid Discharge (ZLD).
The cooling tower can be operated at very high COC of 15 to 20 as against 3 to 5 of conventional methods. Operations at higher COC will lead to minimization of blow down to almost negligible. There is lot of water conservation involved with use of Scaleban Technology. Practically, uses of Scaleban equipment can conserve water to the tune of more than 25% to 30%. Consumption of fresh water can be brought down by 100% as RO reject and ETP treated water can be directly utilized in cooling tower as make up water instead of soft water. Thus Scaleban has initiated a march towards establishment of a cost effective, most efficient and sustainable solution for the achievement of zero liquid discharge with water conservation and zero scaling.
Most importantly, Scaleban provides guaranteed zero scale condition in the condenser and other heat exchangers for a period of 20 years without use of Soft water and anti scalant chemicals. Scale free condensers leads to constant vacuum and specific steam consumption maintained in specified ideal range.
The product is manufactured by State of the Art technology which keeps the product a step ahead of all the other kind of water treatment technologies available in market.
Scaleban with no reject of water is the maintenance free mechanical equipment and does not require any energy input for its operation. We have proved ourselves in the conservation of water to the tune of more than 25% and also in increasing industry productivity and profitability for our (150+) valuable clients across India.
Both, water and energy are the main area of concern for the industries now a days and no one in the world is able to create them; “conserving them is the only way to create them”. Scaleban can proudly claim the maximum conservation of water and energy on account of use of this revolutionary equipment as compared with any other technology available in the world.
Scaleban is awaiting a Patent Number from Office of Controller General of Patents, Designs and Trademarks (Intellectual Property India), Mumbai, Government of India, pending our application number 2335/MUM/2009 dated 7th October 2009.
THIS LIST IS INCOMPLETE,COMPLETE LIST OF THERMAL POWER PLANTS IN INDIA
Dear Sir,
Request you to please send us more details if you have any to add into the list.
Regards,
IPS.com
Dear sir,
The above the comments,and information are use full,i need power plant related updates and discussion and technical knowledge sharing groups mail id or technical persons mail id.
please do needfull.
Dear Sir,
I am Daryosh Tabesh from Afghanistan currently doing my masters with TERI University new delhi. I am writing a report on industrial water use efficiency in India. I have a questionnaire of 2 pages I want to have an interview with 5 to 10 thermal power plant in Deli or nearby places if you can help me please.
Thanking you in Advance,
mail:daryoshtabesh@yahoo.com
Phone: 09873751444
Dear Sir,
We are Authorized retrofitters of woodward Electronic Governor for Steam Turbines.
Many of the older machines in the power plants will have only Hydraulic Governors. We can convert them to Electronic Governors which has a lot of advantages.
We can conduct a seminar to scuh companies which may require our services. Can you please help us.
Regards
Bossmanfilter : http://www.bossmanfilter.com
What type of coal is used in thermal power plant?
dear sir , presently i am working on geothermal on company as a geothermal engineer have any vacancy for geothermal engineer, basically i am from nagpur so koradi is near place from my place .
details of power jobs send if occure
dhuvaran tharemal power palnt in gujarat charotar hart
FORM – MITUL PATEL
Dear Sir,
Please send us the list of thermal power plants in india updated in pdf or Excel Format.
we are organized an exhibition about Bricks Industry, Bricks-Expo.com
It will be very helpfull to us if you provide the details with contact persons also.
Thanks and Regards
Let me know CFBC power plant in INDIA with capacity & OEM of plant As we are manufacturer of Bed Nozzle & wish to register as vendor
Regards
Dear All,
Will someone help me to get the spares requirement in thermal power plants. I will be thankful.
mail id: yadav.anil@live.in
Regards,
Anil Yadav
Fly Ash Disposal & Utilization ???????
Dear sir
We are supplying boiler and turbine spares as per your specification / requirement.
please send your boiler specification in our id vgetechengineers@gmai.com
regards
Shanker
I am working as a power consultant in coimbatore,Tamilnadu.i need power for my client in tamilnadu.How can i get power generation companies list with details? If anyone in power sector,you can call me at 0 80127 89404,8508885788.mail : isonictech@gmail.com
Dear Mansih,
You can contact to two exchange for list of Member Generators and also can contact power traders
If the power requirement of a factory is x MW. What should be the size of the CPP??
we require contact mail id of all major plants of india to introduce ourselves manufacturing various power plant spares
Please sent your detailed company profile for further needful.
Dear Sir,
Please send us the list of thermal power plants in india updated in pdf or Excel Format.
we are organized an exhibition about Bricks Industry, Bricks-Expo.com
It will be very helpfull to us if you provide the details with contact persons also.
Thanks and Regards
B Niren
+91 9825037133
Please sent your company profile.
Regards
R Kumawat
Dear Sir,
Please send us the list of thermal power plants in india updated in pdf or Excel Format.
we are the service provider and Spare parts providers for Gravimetric coal feed systems.
It will be very helpfull to us if you provide the details with contact persons also.
Thanks and Regards
Manoj Kumar B
+91 97437 42403
Dear All,
Please let me know the upcoming thermal power plants in India whose BTG contract is awarded or yet to be awarded.
Thanking you
Regards,
Sir
Can Where can I get the current price of HFO, LDO and differnet types of Coal…
Thanks
Sir
Does the CFBC boiler operated lignite power plants gives >= to coal based plants ? If, so, what is the average PLF of lignite plants in India.
Sir,
We are having a 2X150 MW IPP unit at Beawar, Rajashthan. Its name is Shree Mega Power, unit of Shree Cement Group.
Kindly update the same at your website.
Thanks
Temperature level between in FD fan & chimney ?
http://www.cea.nic.in/reports/regulation/tech_std_reg.pdf – CEA(Technical Standards for construction of electric plants and electric lines regulation
This doc will answer your query…
sir i have information about adv.&disadv. of power plant in gujarat
You have info or you want some info on plants.
what is the approximate height of a chimney at Thermal power stations?
sir i have to know whether can we use any other energy instead of coal ?
Yes, We can we can use GAs, Diesel, Solar Power, Hydro Power, Wind Power , Nuclear, Bio-mass and many more
Can Coal conveyors be underground also? If so,what has to be the precautionary measures one has to keep in mind while constructing and maintaining underground coal conveyors?
Dear Sir,
I want to know if there is any database that lists down the cooling technology (open loop or closed loop) and technology for steam generation (Subcritical, super critical, ultra super critical etc) in India.
Regards,
Garima Vats
THUMBLI THERMAL POWER PLANT OWNED BY GOVERMENT OR PRIVATE?
If you mean to say Giral Lignite Power Plant located at Thumbli, Rajasthan, then it is owned by RVUNL (state government entity).
I WAS A TRAINEE AT NPTI NEYVELI, RECENTLY ON FEB 2013 I PASSED PGDC IN TPPE FROM NPTI NEYVELI,DURING OUR COURSE WE HAVE VISITED MANY TIMES IN NLC TS II EXPANSION HAVING 210MW* 7 TPS,THEY ARE DOING A GREAT JOB WITH A GREAT PLF. THEY ARE GENERATING MAXIMUM TIME 185- 195 MW PER UNIT WHICH I HAVE SEEN DURING THE VISIT. MEANS AN AVERAGE OF 88-90% PLF THROUGHOUT ITS 1470MW. THEY ARE SUPPLYING POWER TO TAMIL NADU, KARANATKA, KERALA, PUDDUCHERRY.
Sir,
where can I get the following information:
1. name of the coal source & type used for the thermal power plants located in West Bengal;
2. comparision of the burning facilities of the plants located in West Bengal, and
3. the criterion for magnetic separation;
Thanks
Kindly intimate per day consumption of coal in Gandhi Nagar and Wanakbori thermal Power stations during 2011-2012 and the % aveage Carbon in coal. Please make it convemeinet to routinely m,ention the amount of coal consumed each rear at each thermal power station and the percent carbon in coal.
Regards
Kuldeep Chandra
Dear Mr. Chandra,
You can find the same info either on CEA site or on the site Gujarat SLDC site. However,%of Carbon or ash in the coal used can only be given by the plant. IndianPowerSector.com from its side try to provide you latest info but getting specific info about plant is not easy.
NBEIL, PALONCHA, ANDHRA PRADESH COAL FIRED UNIT 1*150MW SYNCHRONIZED TO GRID ON Dt.28.02.2012
the explanation is super
What’s the current installed generation capacity?Kindly inform me.
it is 210936 MW, you can easily find it on monthly basis on http://cea.nic.in/
Great work. Data to update and add projects ongoing.
We will be soon updating the site. Please share if you have any information, this is an open forum.
Mejia thermal power plant of DVC is a major power plant in India.
dear sir.,
I want to know about which type of burner used in ukai thermal power plant in boiler
and which type of burning is generate in furnance.
This is very useful information, can any body share the list of upcoming plants in india
With best regards,
Somnath Shingare
Cell: +91-9881247380
Hi, This information is very helpful thanks,
Is it possible to get list of upcoming thermal power plant within India.?
Dear Friends,
It’s not updated data, Dear team please update the figer of Major Thermal Power Plants in India.
Dear Rajeev, Sure we will do that, in mean time if you have this data or any info related to power sector please share it with us. All the contribution will go out in your name.
Share at info@indianpowersector.com
dear sumit kumar this information is too good for thermal power station. this is very much helpful for me and i like very much.
Thanks sushil.
Thermal efficiency of a thermal power plant is the ratio of electrical energy generated to the chemical energy of fuel consumed. For a subcritical plant it is below 42% for a new plant. What a plant is generating is the plant utilization factor. For a supercritical power plant the best thermal efficiency may be around 45-47%.
Thanks. But I learnt that efficiency of thermal power plants are around 45% – 50%.
That is my bad, yes effieceincy of plant are 45-45% but that is thermal efficiency i.e how much coal energy is converted into the electric power.
For thermal power plant there is a factor called Plant load Factor (PLF), so if a plant has installed capacity of 100 and it rums with PLF of 90% it will produce 90MWh of instantaneous power.
On an average plf of plants are from 85-90%. Though some plants even run of PLF higher than 100% or say 1.
Thanks again. Do you have any idea of efficiency of nuclear power plants? If a 1000 MW nuclear reactor is installed, what will be the power output?
What is the thermal efficiency of a thermal power plant? You said that Neyveli Thermal Power Station – II is producing 1470 MW of power. Whether it produces such amount of electricity or lesser than that? (say 60 % efficiency means 882 MW)
1470 is the installed capacity of the plant.Normally thermal power plants run on around 85-90% efficency.
one of the most apt and brisk synopsys of a thermal power plant i have ever read. the two diagrams at the start of modified rankine cycle and the plant over view are the highlights. Great work sir. you have proved a valid point again that simple logics are more important than unrequired expertise. i would be very impressed if u could also add on super critical technology and once through boilers which use a seperator rather than the conventional circulation type boilers. also some some point missing are gland steam cooler and also a note on water technology. but all together great work.
Dear Naveen thanks for appreciation and suggestion. Well will you like to add all these suggestions to the site. If you want just send us the word file and the update will be done in your name on the main page.
its very good detail………….
Hey… gr8 info…
Bt what is done in the power plants in order to treat flue gases?
there is no mention of even any scrubber…do they even operate in any power plant?
heyy gr88 workk sir…it ws realyy informative…spott onnn!!!
good
hi anyone, can you talk to me the size of fine coal powder in thermal power plants? please!
Thank you so much!
Very very good bhai, thanx a lot for a huge information.
Very nice one.
Will you give the e-mail ID of Mr. SUMIT KUMAR please?
sumit.ps@live.in, sumit@indianpowersector.com
ntpc rajghat close date is 15 june 2011 Is is true . send the name of company who took the whole scrapt of power plant
-The Delhi government is toying with the idea of permanently shutting down the Rajghat power plant close by june this year . The plant was earlier closed during the Commonwealth Games to remove the polluting unit in the heart of the city, and provide to residents a recreational area in its place.
-The power station, situated in northeast Delhi, is one of the coal-based power plants of Indraprashta Power Generation Co. Ltd. (IPGCL) and has a generation capacity of 135 MW.
-The power plant was commissioned in 1989 and supplied 135 MW. The Delhi State Industrial and Infrastructure Development Corporation (DSIIDC) had been asked to prepare a blueprint for “adaptive reuse”, and the agency presented its proposal in front of Chief Minister Sheila Dikshit and other officials on Wednesday. Dikshit has given in-principle approval to the project, which will require several clearances before it can begin. It will now be presented to the DDA and the DUAC. The project will take about 3 to 4 years to be implemented.
-“Cost of the project is close to Rs 600 crore. It will be a self financing project as power plant equipment will be sold off and also the office space developed inside the plant will be rented out. Rajghat power plant is spread over 46 acre and as per the DSIIDC proposal, 26 acre will be turned into a city forest. The ash pond inside the plant will be enlarged and converted into a waterbody. The soil there is contaminated due to ash depositing here over the years so it would be cleaned before work starts.
-The existing waterbody, which is used by the power plant, will be retained and redeveloped. The plan is to have the forest and the waterbody close to the Salimgarh Fort so that the area can be developed as a tourist spot. The area where coal handling was done will be converted into a garden and the main building of the plant will be converted into office space. “We will not touch the outer structure or the envelope of the building. The only changes will be in the interior of the building. Also, demolishing the existing structure will cost more than retrofitting it,” said the official. This is the second power plant site that the government is redeveloping – retrofitting of the Indraprastha Power plant is already underway. Its equipment has already been auctioned.