Organic Substances in Process Waters of a Thermal Power Plant with a Combined Cycle Gas Turbine Plant and Methods for Their Detection

2021 ◽  
pp. 247-256
Author(s):  
Antonina Filimonova ◽  
Andrey Chichirov ◽  
Natalya Chichirova ◽  
Aliya Batalova
Keyword(s):  
Power Plant ◽  
Gas Turbine ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Combined Cycle ◽  
Organic Substances ◽  
Turbine Plant ◽  
Gas Turbine Plant

Evaluation of the energy efficiency of combined cycle gas turbine. Case study of Tashkent thermal power plant, Uzbekistan

2016 ◽  
Vol 103 ◽  
pp. 501-509 ◽  
Author(s):  
Zarif Aminov ◽  
Nobukazu Nakagoshi ◽  
Tran Dang Xuan ◽  
Osamu Higashi ◽  
Khusniddin Alikulov
Keyword(s):  
Energy Efficiency ◽  
Power Plant ◽  
Gas Turbine ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Combined Cycle

scholarly journals Technical-economic evaluation of medium-power gas turbine plant with air bottoming cycle

2019 ◽  
Vol 114 ◽  
pp. 07005 ◽  
Author(s):  
Alexey V. Mikheev ◽  
Yulia M. Potanina
Keyword(s):  
Power Plant ◽  
Gas Turbine ◽  
Optimization Problems ◽  
Electric Energy ◽  
Electricity Production ◽  
Turbine Plant ◽  
Technical And Economic Analysis ◽  
Gas Turbine Plant ◽  
Gas Turbine Power Plant ◽  
Minimum Costs

A developed mathematical model of a gas turbine power plant with an additional air bottoming cycle to utilize heat of exhaust gases was used to carry out a technical and economic analysis. The approach used in the study is aimed at solving two types of optimization problems: (1) to determine the maximum net efficiency of the power plant and (2) to adjust the equipment and operating parameters for achieving minimum costs of electricity production. The study shows that the air bottoming cycle provides an increase in the net efficiency up to 44 - 48% and adds about 20% to the installed power capacity. The minimum costs of electric energy production estimated for different prices of fuel (natural gas) are competitive enough, so the gas turbine power plant with air bottoming cycle seems to be a promising technology for medium-power generation.

DADICC: Intelligent system for anomaly detection in a combined cycle gas turbine plant

2008 ◽  
Vol 34 (4) ◽  
pp. 2267-2277 ◽  
Author(s):  
A ARRANZ ◽  
A CRUZ ◽  
M SANZBOBI ◽  
P RUIZ ◽  
J COUTINO
Keyword(s):  
Anomaly Detection ◽  
Gas Turbine ◽  
Intelligent System ◽  
Combined Cycle ◽  
Turbine Plant ◽  
Gas Turbine Plant

Repowering: An Option for Refurbishment of Old Thermal Power Plants in Latin-American Countries

2010 ◽  
Author(s):  
Washington Orlando Irrazabal Bohorquez ◽  
Joa˜o Roberto Barbosa ◽  
Luiz Augusto Horta Nogueira ◽  
Electo E. Silva Lora
Keyword(s):  
Power Plant ◽  
Natural Gas ◽  
Steam Turbine ◽  
Gas Turbine ◽  
Power Plants ◽  
Thermal Power ◽  
Rankine Cycle ◽  
Combined Cycle ◽  
Fuel Oil ◽  
Thermal Power Plants

The operational rules for the electricity markets in Latin America are changing at the same time that the electricity power plants are being subjected to stronger environmental restrictions, fierce competition and free market rules. This is forcing the conventional power plants owners to evaluate the operation of their power plants. Those thermal power plants were built between the 1960’s and the 1990’s. They are old and inefficient, therefore generating expensive electricity and polluting the environment. This study presents the repowering of thermal power plants based on the analysis of three basic concepts: the thermal configuration of the different technological solutions, the costs of the generated electricity and the environmental impact produced by the decrease of the pollutants generated during the electricity production. The case study for the present paper is an Ecuadorian 73 MWe power output steam power plant erected at the end of the 1970’s and has been operating continuously for over 30 years. Six repowering options are studied, focusing the increase of the installed capacity and thermal efficiency on the baseline case. Numerical simulations the seven thermal power plants are evaluated as follows: A. Modified Rankine cycle (73 MWe) with superheating and regeneration, one conventional boiler burning fuel oil and one old steam turbine. B. Fully-fired combined cycle (240 MWe) with two gas turbines burning natural gas, one recuperative boiler and one old steam turbine. C. Fully-fired combined cycle (235 MWe) with one gas turbine burning natural gas, one recuperative boiler and one old steam turbine. D. Fully-fired combined cycle (242 MWe) with one gas turbine burning natural gas, one recuperative boiler and one old steam turbine. The gas turbine has water injection in the combustion chamber. E. Fully-fired combined cycle (242 MWe) with one gas turbine burning natural gas, one recuperative boiler with supplementary burners and one old steam turbine. The gas turbine has steam injection in the combustion chamber. F. Hybrid combined cycle (235 MWe) with one gas turbine burning natural gas, one recuperative boiler with supplementary burners, one old steam boiler burning natural gas and one old steam turbine. G. Hybrid combined cycle (235 MWe) with one gas turbine burning diesel fuel, one recuperative boiler with supplementary burners, one old steam boiler burning fuel oil and one old steam turbine. All the repowering models show higher efficiency when compared with the Rankine cycle [2, 5]. The thermal cycle efficiency is improved from 28% to 50%. The generated electricity costs are reduced to about 50% when the old power plant is converted to a combined cycle one. When a Rankine cycle power plant burning fuel oil is modified to combined cycle burning natural gas, the CO2 specific emissions by kWh are reduced by about 40%. It is concluded that upgrading older thermal power plants is often a cost-effective method for increasing the power output, improving efficiency and reducing emissions [2, 7].

CALCULATION OF THE DRAINAGE SYSTEM OF LEAVING FLUE GASES FROM THE TURBINE THROUGH THE COOLING TOWER

2018 ◽  
Vol 8 (1) ◽  
pp. 135-138
Author(s):  
Anatoly A. KUDINOV ◽  
Yulia E. DEMINA
Keyword(s):  
Power Plant ◽  
Cooling Tower ◽  
Drainage System ◽  
Combined Cycle ◽  
Flue Gases ◽  
Simultaneous Reduction ◽  
Turbine Plant ◽  
Circulating Water ◽  
Effi Ciency ◽  
Gas Turbine Plant

The article presents result of a research a system of the venting of exhaust gases of the recovery boiler the gas turbine plant through the natural draft cooling tower in the environment. The use of this scheme allows the fl ue gases to lower the temperature of the circulating water at the outlet of the cooling tower to provide a deeper vacuum in the condenser steam turbine combined cycle power plant with simultaneous reduction of capital to build chimneys. As a result of the application of this scheme, an increase in the absolute electric effi ciency of turbines is achieved. As stated in Article method of calculating the removal of exhaust fl ue gas systems with a perforated distributor ring allows to determine the level of engineering design and volume requirements of these systems.

The Optimum Pressure Ratio for a Combined Cycle Gas Turbine Plant

1995 ◽  
Vol 209 (4) ◽  
pp. 259-264 ◽  
Author(s):  
J H Horlock
Keyword(s):  
Gas Turbine ◽  
Pressure Ratio ◽  
Combined Cycle ◽  
Maximum Efficiency ◽  
Specific Work ◽  
Optimum Pressure ◽  
Turbine Plant ◽  
Gas Turbine Plant ◽  
Overall Efficiency ◽  
Gas Turbine Cycle

A graphical method of calculating the performance of gas turbine cycles, developed by Hawthorne and Davis (1), is adapted to determine the pressure ratio of a combined cycle gas turbine (CCGT) plant which will give maximum overall efficiency. The results of this approximate analysis show that the optimum pressure ratio is less than that for maximum efficiency in the higher level (gas turbine) cycle but greater than that for maximum specific work in that cycle. Introduction of reheat into the higher cycle increases the pressure ratio required for maximum overall efficiency.

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