The present study aims at determining the actual performance of a coal based 210 mw power plant at full and part loads 210 mw and 195. Types, combustion in boilers, performances evaluation, analysis of losses, feed water treatment, blow down, energy conservation opportunities. A fifth 210 mw unit is under construction for service in 2006 as unchahar stage iii. The net heat rate of the station is also calculated and target for the reduction to achieved the design value of the net station heat rate.
Extracted steam from various points of the turbine is utilized to heat the condensate in these heat exchangers. Pdf performance analysis of 210 mw at ntpc vindhyachal. Performance analysis of 210 mw at ntpc vindhyachal, singrauli. Efficient operation, effective baffling of heat transfer, well insulated casing, ability to deliver pure steam with effective drum internals to generate steam of full capacity. Bhel offers a wide spectrum of products and services for core sectors like. A boiler of this type, filled with water and ready for function, can weigh as much as 165 tons, which corresponds to. Boilers bureau of energy efficiency 27 syllabus boilers. This paper presents the thermodynamic modeling and validation of a 210 mw subcritical coalfired power plant situated in north india. Scribd is the worlds largest social reading and publishing site.
Biomass boiler read more pdf exergetic and energetic analysis of a 210 mw thermal power. Low capital cost, ease of construction, simplicity, safety, good working condition, ease of maintenance. With ever increasing demand for electricity, it is very necessary for the power plants to generate electricity without forced outages. Guide to combined heat and power systems for boiler. There are two to six fans per boiler for 210 mw units. Abstract in the present work, exergy analysis of a coal. Pdf exergetic analysis is a modern tool to assess the optimum thermal.
Sc boilers are designed to be only of oncethrough structure. The steam as measured at drum outlet shall have an impurity not greater than 0. During actual performance, although small deviations are observed from. On the basis, the reasonable surface area of tube and the value range of heat transfer coefficient of the middle temperature superheater are applied for design. Pdf bhel 210mw turbine operation manual boiler feed pumps. Epa combined heat and power partnership biomass chp catalog foreword the u. Performance analysis of coal based kwu designed thermal. Feb 01, 2017 this paper presents the efficiency calculation of boiler, turbine and condenser of a 210 mw unit. The main function of a boiler is to heat water for steam generation. Thermodynamic modeling and validation of a 210mw capacity.
Eheach of theauxiliary and end aiir nozzles are provided with louver type regulating dampers, at the air entry to individual air compartment. This has become the mainstream type of thermal power plant in japan. Root cause analysis and economic implication of boiler. Superheater, drums and boiler tube system maximum design pressure, vendor to specify, but a minimum of 300 kpa 3 bar above operating pressure is required. Flexible operation of thermal power plant for integration of. Pdf one of the pulverized coal fired thermal power plants in india intended to find the root cause of frequent boiler tube failures in three 210 mw. An improved method to control the critical parameters. It is normal practice to design the boiler to produce a higher rate of steam generation than that appropriate to the value used in the turbinegenerator design. Main fuel indian coal washery reject type of coal for design of boiler boiler will be designed for coal. Photograph courtesy of bhel posted 26 feb 2005 vindhyachal location. Boiler design consideration following factors are taken into consideration for design of modern boiler.
Numerical investigation and performance enhancement of 210 mw. The boiler turbine unit control schemes have gone through several decades of evolution and, typically, a cascade of pipid controllers based on singleinput singleoutput control loops is designed in the plant to fulfill such tasks. With 80 % yield in a washery rejects qty will be around 20 %. Boiler spares 210mw 73 0431900500100 boiler ltsh 210 mw bend 90 deg ltsh coil loop bend 1 set 3nos 44. A boiler is a closed vessel in which water is heated, steam is generated, superheated or any combination thereof under pressure or vacuum by the direct application of heat from combustible fuels or electricity. It is there to improve the efficiency of boiler by extracting heat from flue gases to heat water and send it to boiler drum.
Jan 01, 2020 after theoretical investigation the efficiency of 210 mw boiler is found to be 83. Design and operating experience of the latest 1,000mw. Biomass stoker boiler power generation system capital cost estimates 83 table 75. For a 2x500 mw station a 60 mw bfbc boiler is recommended by bhel typical parameters for bfbc boiler utilising rejects. Ss p d 11 stability coefficients of stagnation and inverting are equal the ratio between.
In these boilers water is inside the tubes and hot gases are outside the tubes. Committed to make a better world field engineering services fb. Design of superheater for 210 mw thermal powerplant final. Venkateswara rao department of mechanical engineering, dbs institute of technology, india, pincode52420. The effectiveness and efficiency of the heat exchanger is estimated to be 0. Failure investigation of platen superheater tube in a 210 mw. Design and actual performance values of boiler efficiency, specific fuel consumption, heat rate and overall efficiency are compared. Boiler is an enclosed vessel in which water is heated and circulated until the water is turned in to steam at. Constructional and design features of boilers boiler auxiliaries. Furnace design of 210 mw circulating fluidized bed boilernumerical investigation. Fire tube boilers also referred to as smoke tube boilers, shell boilers, package boilers multiple gas paths 2, 3 and 4 pass internal furnace or fire box as the 1st pass dry back or wet back design single fuel or dual fuel design little or no steam separation equipment. In this study, the key parameters of hydrodynamics suspension density, local voidage, pressure drop which are affecting the design and performance of cfb boiler are studied at different height levels of riser. As such, the objective of the present work is not to enhance the thermal conversion efficiency, but to represent the thermal. Performance analysis of 210 mw at ntpc vindhyachal.
Twophase thermohydraulic model of a 210 mw thermal power. Plant capacity 1 x 18 mw thermal power plant technology conventional steam cycle operating in rankine cycle, consisting of 80 tph cfbc boilers and 1 no. The wetness of the steam leaving the drum shall not exceed 0. Bharat heavy electricals limited power sector eastern region pser. Five different burner configurations were investigated for each of the three steam generator operating modes. The detailed process of biofuel fluidized bed boiler design and its results are provided in 2, 3. Theoretically, co should be zero whenever there is oxygen in the flue gas. The damper regulates on elevation basis, in unison, at all corners. Ficci hsbc federation of indian chambers of commerce and. A typical schematic diagram of the thermal power plant is given in figure 1. All manual valves of combustion chamber wind box are in open condition. An analysis was conducted for a steam generator of the 210 mw power plant sisak croatia. The boiler should be operated based on existing manualdesign handbook and.
Adaptive controller for boilers recently, utility boilers have been required to burn various kinds of coals having heavy slagging or slowburning profiles. The model and methodology can be used for any subcritical boiler for design purpose. In the manual, you will learn about large utility pulverised coal fuel fired boilers. Feed water enters the boiler to one drum here it is drum below the boiler. The study focuses on evaluation of various parameters like dry fl ue gas loss, wet flue gas loss. We enginer, design and manufacture all types and sizes of coal nozzles, nozzle tips to withstand virtually and operating environment. Pdf design of superheater for 210 mw thermal power plant. Boiler design is the process of designing boilers used for various purposes.
In order of increasing capacity, three boiler types are the firetube, watertube and waterwall boilers. Design and operating experience of the latest 1,000mw coal. Abstract in the present work, a natural circulation boiler of a typical 210 mw thermal power plant is investigated with an objective to provide the feasible, reliable, and safe design solution of the riserdowncomer circuit. Steam power plant configuration, design, and control. Classification of boiler, fundamental of boiler design, steam generation, principle of natural.
Modeling and control of supercritical and ultrasupercritical. Biomass combined heat and power catalog of technologies. The loss may be assumed appropriately depending on the surface condition. Cfd analysis of a 200mw tangential gas fired furnace boiler. The temperature or condition of steam required for these applications is different, so how to design a boiler. The boiler was originally designed for fired coal with gcv of 5000 kcalkg, and presently operates with gcv in. Boiler tube failure is the prime reason of forced outages at coal fired thermal power plants. Steam produced can be used for a variety of purposes including space heating, sterilization, drying, humidification and power generation. The data pertaining to boiler tube failures for one of thermal power plant in maharashtra state. Steam condition vs design efficiency steam pr bar steam temp 0c reheat steam temp 0c design efficiency % size of set mw 41. This paper presents the efficiency calculation of boiler, turbine and condenser of a 210 mw unit. Process design of steam boilers project standards and specifications page 8 of 45 rev. The coal properties influence the design and performance of steam generators. Oct 02, 2015 boiler package of unit 1 2 3 and 4 of 4x270 mw ip, lp modules, generator and auxiliary works at unit6, 500 mw.
Numerical investigation and performance enhancement of 210. In the era of high computing facilities available, modeling and simulation have become a very pertinent tool for design and development. Iitignitors oil and gas are ignited by a pilot flame. Design of superheater for 210 mw thermal power plant. Thermal performance and economic analysis of 210 mwe coal. In the present work, a natural circulation boiler of.
Environmental protection agency epa combined heat and power chp partnership is a voluntary program that seeks to reduce. Among medium irelands west offaly power station, which was than 160 mw output. Design and actual performance values of boiler efficiency, specific fuel consumption, heat rate and. Biomass stoker boiler power generation system input and output requirements 81 table 74. The focus here will be on boilers sized in between these two extremes, which is also where there is the greatest diversity of design. Shandong tiejun electric power engineering company limited 2 boiler. Naga kishore research scholar,department of mechanical engineering, jnt university college of engineering anantapur, india, pincode515002 t. Pdf exergetic and energetic analysis of a 210 mw thermal power. Guide to combined heat and power systems for boiler owners. Table 16 increase in tariff due to increase in net heat rate for 200210 mw. Heat release maximum and average per cubic meters of furnace. This margin is normally about 5% and is intended to cover application variations e.
Failure investigation of platen superheater tube in a 210. They may contain any number of drums you can see 2 drums in fig. Aug 11, 2016 from deaerator, the feed water is supplied to boiler by boiler feed pumps through three number h. To opt for their replacement with cartridges of upgraded. Energy is the wheel of development the process of economic development entails progressively higher levels of energy consumption, particularity in the developing economies. In a relatively small boiler, with a capacity of 10 mw, the radiation and unaccounted losses could amount to between 1% and 2% of the gross calorific value of the fuel, while in a 500 mw boiler, values between 0. Pdf in india, coal is the dominant source of energy generation. Furthermore, based on operation experience from several 210 mw cfb boilers, an arrangement of the superheater in the furnace is given. Sep 03, 2017 on the basis, the reasonable surface area of tube and the value range of heat transfer coefficient of the middle temperature superheater are applied for design.
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