scholarly journals THE FEASIBILITY STUDY OF APPLICATION OF COMBINED CYCLE GAS TURBINE UNITS ON BOARD SHIPS OF THE RUSSIAN FLEET

2017 ◽  
pp. 93-99
Author(s):  
Nikolay Georgievich Rodionov ◽  
Vitaly Vladimirovich Korotkov ◽  
Evgeny Ivanovich Tomashov
Keyword(s):  
Power Plant ◽  
Gas Turbine ◽  
Feasibility Study ◽  
Combined Cycle ◽  
Gas Temperature ◽  
Close Attention ◽  
Combine Cycle

The article studies the possibility of application combined-cycle gas turbine plants (CCGT) in the Russian Navy. A review of numerous publications allows to infer that the essential increase of ship power plant (SPP) efficiency (10-15%) can be reached by using combine-cycle gas turbine plants. It should be noted that the greatest effect on CCGT performance makes the level of technological sophistication of gas-turbine units (GTU), in particular, the gas temperature achieved before the turbine. The possibility of creating marine CCGT in Russia is being explored. The article contains examples of the use of GTUs on board foreign ships. Close attention is drawn to the advanced techniques used to increase CCGT efficiency. There have been presented calculations of the approved scheme of CCGT, which demonstrate the advantages of using CCGTs.

Combined Cycle Powerplant Cost Sensitivity Analysis

2021 ◽  
Author(s):  
Pugalenthi Nanadagopal ◽  
Animesh Pandey ◽  
Manjunath More ◽  
Pertik Kamboj
Keyword(s):  
Power Plant ◽  
Gas Turbine ◽  
Combined Cycle ◽  
Maintenance Cost ◽  
Combine Cycle Power Plant ◽  
Manufacturing Companies ◽  
Levelized Cost Of Electricity ◽  
Combine Cycle ◽  
Electrical Generation ◽  
The Impact

Abstract In Gas turbine-based combined cycle power plant market, the customer conducts an economic evaluation of competitive products to decide their buying option. There are different methods to calculate the economics of a power plant like Levelized cost of electricity (LCOE), Net present value (NPV) and payback period. LCOE methodology is commonly used for lifecycle cost analyses for combine cycle power plant that covers cost details of the plant and plant performance over the complete lifetime of a power plant from construction to retiring. Typically, it includes a combine cycle power plant ownership costs (Total plant cost and operating & maintenance cost) and combine cycle power output and efficiency. This LCOE method is helpful to compare power generation system that use similar technologies. This paper encompasses the LCOE calculation method, assumptions & approach to analyze the impact of key parameters of the electrical generation cost. They key parameters includes combine cycle output, combine cycle efficiency, fuel cost, annual operating hours, capital charge factor, annual operating hours, power plant life, discount rate, nominal escalation rate, operating & maintenance cost. This paper analyses result will provide insights to the customer & Gas turbine-based OEM (Own Equipment Manufacturing) companies to focus on different area/parameters to reduce the unit cost of generating electricity.

Gas Turbine Combined Cycle Optimized for Postcombustion Carbon Capture

2018 ◽  
Vol 140 (9) ◽  
Author(s):  
S. Can Gülen ◽  
Chris Hall
Keyword(s):  
Power Plant ◽  
Gas Turbine ◽  
Co2 Capture ◽  
Carbon Capture ◽  
Heat Recovery ◽  
Combined Cycle ◽  
Heat Recovery Steam Generator ◽  
Gas Temperature ◽  
Design Challenges ◽  
Stack Gas

This paper describes a gas turbine combined cycle (GTCC) power plant system, which addresses the three key design challenges of postcombustion CO2 capture from the stack gas of a GTCC power plant using aqueous amine-based scrubbing method by offering the following: (i) low heat recovery steam generator (HRSG) stack gas temperature, (ii) increased HRSG stack gas CO2 content, and (iii) decreased HRSG stack gas O2 content. This is achieved by combining two bottoming cycle modifications in an inventive manner, i.e., (i) high supplementary (duct) firing in the HRSG and (ii) recirculation of the HRSG stack gas. It is shown that, compared to an existing natural gas-fired GTCC power plant with postcombustion capture, it is possible to reduce the CO2 capture penalty—power diverted away from generation—by almost 65% and the overall capital cost ($/kW) by about 35%.

Influence of Degradation, Fuel Cost and Electricity Price Factors on Combine Cycle Power Plant Cost Analysis

2021 ◽  
Author(s):  
Pugalenthi Nanadagopal ◽  
Matthias Duerr ◽  
Ole Fahrendorf ◽  
Dan Haid ◽  
Hubert Paprotna
Keyword(s):  
Economic Evaluation ◽  
Power Plant ◽  
Cost Analysis ◽  
Gas Turbine ◽  
Combined Cycle ◽  
Manufacturing Companies ◽  
Fuel Cost ◽  
Levelized Cost Of Electricity ◽  
Cost Of Electricity ◽  
Combine Cycle

Abstract Gas turbine-based combine cycle (GT-CC) economic evaluation is very important to bring together own equipment manufacturing companies (OEM’s) and power plant owners. The fuel cost & cost of electricity play the major role in economic evaluation which drives the decision during the bidding. The first portion of this paper encompasses the different cost analysis methods like Net Present Value (NPV), Internal Rate of Return (IRR), Levelized Cost of Electricity (LCOE) and Pay Back Period (PBP) for different fuel costs and electricity prices. The second portion of the paper covers the delta cost benefits due to improvement in the combined cycle degradation GT-CC operators or customers are looking for the opportunities to control and minimize the degradation of the gas turbine power plant which directly impact the profitability. The customer or operator always monitor the plant performance to understand the life cost impact on performance degradation. This paper will help the customers & GT-CC OEM companies to focus on different area to reduce the unit cost of generating electricity, decide to move forward with the project during the proposal and improve the business at various regions based on fuel cost and global geographical political situations. Also, the reader can digest the benefits of improved degradation curve over the normal curve.

Gas Turbine Combined Cycle Optimized for Post-Combustion Carbon Capture

2017 ◽  
Author(s):  
S. Can Gülen ◽  
Chris Hall
Keyword(s):  
Power Plant ◽  
Gas Turbine ◽  
Co2 Capture ◽  
Carbon Capture ◽  
Heat Recovery ◽  
Combined Cycle ◽  
Heat Recovery Steam Generator ◽  
Gas Temperature ◽  
Design Challenges ◽  
Stack Gas

This paper describes a gas turbine combined cycle (GTCC) power plant system, which addresses the three key design challenges of post-combustion CO2 capture from the stack gas of a GTCC power plant using aqueous amine-based scrubbing method by offering the following: (i) low heat recovery steam generator (HRSG) stack gas temperature, (ii) increased HRSG stack gas CO2 content and (iii) decreased HRSG stack gas O2 content. This is achieved by combining two bottoming cycle modifications in an inventive manner, i.e., (i) high supplementary (duct) firing in the HRSG and (ii) recirculation of the HRSG stack gas. It is shown that, compared to an existing natural gas-fired GTCC power plant with post-combustion capture, it is possible to reduce the CO2 capture penalty — power diverted away from generation — by almost 65 percent and the overall capital cost ($/kW) by about 35 percent.

The Operating Experience of the Next Generation M501G/M701G Gas Turbine

2001 ◽  
Author(s):  
Y. Tsukuda ◽  
E. Akita ◽  
H. Arimura ◽  
Y. Tomita ◽  
M. Kuwabara ◽  
...  
Keyword(s):  
Power Plant ◽  
Gas Turbine ◽  
High Efficiency ◽  
Thermal Power ◽  
Operating Experience ◽  
Combined Cycle ◽  
Cycle Performance ◽  
Next Generation ◽  
Gas Temperature ◽  
Combined Cycle Power Plant

The combined cycle power plant is recognized as one of the best thermal power plant for its high efficiency and cleanliness. As the main component of the combined cycle power plant, the gas turbine is the key for improvement of the combined cycle power plant. The next generation G class gas turbine, with turbine inlet gas temperature in 1,500°C range has been developed by Mitsubishi Heavy Industries, Ltd. (MHI). Many advanced technologies; a high efficiency compressor, a steam cooled low NOx combustor, a high temperature and high efficiency turbine, etc., are employed to achieve high combined cycle performance. Actually, MHI has been accumulating the operating experiences of M501G (60Hz machine) a combined cycle verification plant in MHI Takasago, Japan, and achieving the high performance and reliability. Also, M701G (50Hz machine) has been accumulating the operating experience in Higashi Niigata Thermal Power Station of Tohoku Electric Power Co., Inc. in Japan. This paper describes the technical features of M501G/M701G, and up-to-date operating status of the combined cycle power plant in MHI Takasago, Japan.

scholarly journals Fuel-Flexible Combined Cycles for Utility Power and Cogeneration

1980 ◽  
Author(s):  
P. B. Roberts ◽  
T. E. Duffy ◽  
H. Schreiber
Keyword(s):  
Power Plant ◽  
Gas Turbine ◽  
Power Plants ◽  
Turbine Rotor ◽  
Combined Cycle ◽  
Inlet Temperature ◽  
Gas Temperature ◽  
Industrial Gas Turbine ◽  
Plant Efficiency ◽  
Steam Cycle

Two combustion turbine combined cycle power plants have been studied for performance and operating economics. Both power plants are in the size range that will be suitable for small utility application and use less than 106 GJ/hr (100 million Btu/hr). The Powerplant and Industrial Fuel Use Act of 1978 has exempted power plants of this size from the requirement to use coal. The first power plant is based on the Solar Turbines International (STI) Mars industrial gas turbine. The combined gas turbine/steam cycle is direct fired with No. 2 diesel fuel. A net plant efficiency of 39.7 percent (HHV) is obtained at the 11.56-mW growth rating of the Mars engine for a turbine rotor inlet temperature of 1331 K (1935 F). A total installed cost for the system is estimated to be within the band 545 to 660 $/kW. The second power plant is based on STI’s Centaur industrial gas turbine. The combined gas turbine/steam cycle is indirectly fired with solid fuel although it is intended that the installation can be initially fired with a liquid fuel. A net plant efficiency of 25.0 percent (HHV) is obtained burning Illinois No. 6 coal at a rating of 3.78 mW with a turbine inlet gas temperature of 1117 K (1550 F).

Sign in / Sign up

Export Citation Format

Share Document