4"12-Z 1 - part - usaid

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• • • • ) ) mass flow meters must be installed for momtoring and controlling fuel input. Each boiler has a 159 mm diameter 0-20 T/H mazut supply line and a 66 nun diameter 0-10 T/H mazut return line. Combustion Controls Combustion control is remote manual from a central control room. Operators can adjust gas control valve position, mazut control valve position or rotary vane coal feeder speed so that the quantity of steam is sufficient to maintam turbine load. Operators can also adjust FD and ID fan dampers based on absolute pressure m a furnace, but the four O2 analyzers per boiler are known to be maccurate, therefore air flow control is also based on guesswork. The existing O2analyzers of Russian design and manufacturer require frequent maintenance and calibration. The steam boilers flue gas samples are drawn from the backpass after the superheater and before the first stage reheater where pressure is slightly negative, temperature about 550 C +/-. The sample line is about 108 1!lID m dia. and about 70 m long. Although these analyzers are functional, they are subject to drift and significant lag time as well as inaccurate readings due to air in-leakage. This results in less than optimum cQntrol of excess air for efficient combustion which results in waste of fuel. Environmental Monitoring Downwind dispersion concentrations of ash, NO x , S02' CO2 are checked once per month by power plant laboratory at 2.5, 5.0, 8.0 and 10 Km. The government district center sanitary laboratory in L'VIV makes random tests when plant is at full load. Condenser Cooling Water Condenser cooling water is taken from an artificial lake which was created by damming a nver at the same time the plant was constructed. The lake is used as a fish farm and chemicals cannot be used to maintam condenser cle3.nIiness, therefore condenser fouling with CaC0 3 , MgC0 3 and organics is a significant problem. Each condenser is cleaned twice per year and the average deposit thickness at the time of a cleamng is 3-4 mm. At the time of a condenser cleaning, there is a loss of condenser vacuum from 0.036 kg/cm 2 to 0.039 kg/cm 2 absolute pressure which causes a 5 MW loss in generator output. Two condensers have Ukrainian design ball cleaning systems which were installed in 1990. Boiler Makeup Water and City Water Treatment Lake water makeup is heated and sent to four (4) 150 TIH clarifiers and six (6) 3.0 meter diameter anthracite fIlters. From that point water is sent to the city hot water district heating I system softeners and to the boiler makeup water demineralizer. City water demand is 300 TIH and boiler makeup water demand is 240 T/H, and these two flows should be within the design rating of the equipment. However, the ion exchange material in the demineralizer is in such • 3 D IHALLBERGlCROSMANJ
poor condition that 100 TIH are consumed in regenerating it. Also, the clarifiers are overloaded, suspended solids are overflowing, and large quantIties of water are needed to backwash the fIlters. As a result of these conditions, the plant can meet a demand of 240 T/H for boiler feedwater, but can only supply 200 T/H to the CIty. The quality of city water is also not good due to high bacteria count. Another result of these conditions is high consumption of sulfuric acid and caustic soda for demineralizer regeneratIons. Rehabilitation Plans IMPRESSARIO AGRUPADOS, an engineering consulting firm from Spain conducted a major rehabilitation study in 1993 for EBRD. They evaluated seven alternatives for rehabilitatIon, including rebuilding boilers and replacing turbines WIth upgraded 225 MW machines, adding scrubbers, precipitators, replacmg boilers with crrculating fluidized bed (CFB) boilers, and gas turbine combined cycle repowenng. They are very interested in learning more about CFB technology as a solution to the problems resulting from poor coal - S02, NOx, and high maintenance on the old Taganrog PC boilers. They are also interested in western technology for instrumentation and control, and want to upgrade the automation on the rehabilitated block 12 as a demonstration project. Experience gained from application of a Distributed Control System (DCS) to block 12 would be applied to the 1995 reconstruction of blocks 11 and 7. A list of priority instruments (attached) was provided itemizing as a minimum primary field instruments (transmitters, etc.) which are presently needed for block 12. They are planning to add one or two gas frred peaker boilers to meet additional hot water district heating demand from city. Power plant design work is being done by Ukraine Teploelectroproject, L'VIV Research Institute and Transmission design is being done by Electrosetproject in L'VIV. Mana2ement Capabilities The ClIP plant management gathers detailed information and performance data on all aspects of the equipment operation and mamtenance. Therefore, data on gas and mamt fuel consumption, gross and net K.W output, steam and hot water (gcal heat) for monthly (heatmg periods) and annual basis is easily obtamed. This data will be used for comparing ClIP plant performance audit before and after implementation of "no cost - low cost" efficiency improvement equipment and procedures to improve monitoring and energy management. The plant personnel are very knowledgeable and cooperatIve. They are aware of equipment and instrument deficiencies and the need for upgrading and applying western technology for improving combustion and energy efficiency. • 4 D lHAUBERGlCROSMANJ
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• • W 0 5906-02 • Delivery Or
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• • • • 5906-01/02AIBURSHTY
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• • • • • • • • 590
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• • • furnace is dIvided into
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• • The station has had sIgnifi
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Flue gas samples were also taken at
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4.2.2 Power Plant AudIts The audIt
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Ifonly a modest savings of about 0.
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ECO-06 MAZUT SONIC FLOW METERS The
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DESCRIPTION COST 2. SIlica Analyzer
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6.0 IMPLEMENTATION PHASE (Follow-up
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earings, contacts, etc The electric
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• • • BURSHTYN COAL CONSUMPTI
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DelIvery Order #06 Task 2 Power Pla
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5906-011Cf2A/APPENDIX/4/18/95 APPEN
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Simple Payback for O2 Analyzers - 1
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5906-01l02A/APPENDIX/4/t8/95 APPEND
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Reference air tstrmg Zircoma substr
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SPECIFICATIONS CD OXYGEN SENSING EQ
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.- The 1261 Calorimeter Operates in
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Page 79 and 80: • • • • • BURSHTYN COAL Q
Page 81: • • • • Polsky Coal Pure Pr
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Page 125 and 126: EXECUTIVE SUMMARY INTRODUCTION GENE
Page 127 and 128: 9) Four (4) 02 analyzers rated for
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Page 132 and 133: PC boilers. They are also intereste
Page 150: 1.1 IntroductIon TRIP REPORT USAID/
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• • • technology and requeste
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TRIP REPORT Delivery Order No 6 - E
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cooling water flow to condensers. N
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• • • Information system for
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• • • Instromet natural gas c
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• • 1 PTVM-100, Station 2 - adj
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availability of a pnnter, Its possi
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The Infrared thermometer was used u
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State Committee of the Autonomous C
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• • However, there are no recor
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Month Consumption ODESSA CHP PLANT
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Month Consumption ODESSA CHP PLANT
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BURsHTYN NATURAL GAS 1996 P 1997 P
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• • • • • • • Simfero
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