Medway: A High-Efficiency Combined Cycle Power Plant Design

1995 ◽  
Vol 117 (4) ◽  
pp. 713-723 ◽  
Author(s):  
D. M. Leis ◽  
M. J. Boss ◽  
M. P. Melsert
Keyword(s):  
Power Plant ◽  
Steam Turbine ◽  
High Reliability ◽  
System Optimization ◽  
Combined Cycle ◽  
Advanced Technology ◽  
Plant Design ◽  
Turbine Generator ◽  
Combined Cycle Power Plant ◽  
Plant System

The Medway Project is a 660 MW combined cycle power plant, which employs two of the world’s largest advanced technology MS9001FA combustion turbine generators and an advanced design reheat steam turbine generator in a power plant system designed for high reliability and efficiency. This paper discusses the power plant system optimization and design, including thermodynamic cycle selection, equipment arrangement, and system operation. The design of the MS9001FA combustion turbine generator and the steam turbine generator, including tailoring for the specific application conditions, is discussed.

scholarly journals Medway: A High-Efficiency Combined Cycle Power Plant Design

1994 ◽  
Author(s):  
Darrell M. Leis ◽  
Michael J. Boss ◽  
Matthew P. Melsert
Keyword(s):  
Power Plant ◽  
Steam Turbine ◽  
High Reliability ◽  
System Optimization ◽  
Combined Cycle ◽  
Advanced Technology ◽  
Plant Design ◽  
Turbine Generator ◽  
Combined Cycle Power Plant ◽  
Plant System

The Medway Project is a 660 MW combined cycle power plant which employs two of the world’s largest advanced technology MS9001FA combustion turbine generators and an advanced design reheat steam turbine generator in a power plant system designed for high reliability and efficiency. This paper discusses the power plant system optimization and design, including thermodynamic cycle selection, equipment arrangement, and system operation. The design of the MS9031FA combustion turbine generator and the steam turbine generator, including tailoring for the specific application conditions, is discussed.

Steam Turbine Driving Compressor for Gas-Steam Combined Cycle Power Plant

2009 ◽  
Author(s):  
Wancai Liu ◽  
Hui Zhang
Keyword(s):  
Power Generation ◽  
Power Plant ◽  
Steam Turbine ◽  
Gas Turbine ◽  
Combined Cycle ◽  
Thermodynamic Process ◽  
Combined Cycle Power Plant ◽  
Steam Cycle

Gas turbine is widely applied in power-generation field, especially combined gas-steam cycle. In this paper, the new scheme of steam turbine driving compressor is investigated aiming at the gas-steam combined cycle power plant. Under calculating the thermodynamic process, the new scheme is compared with the scheme of conventional gas-steam combined cycle, pointing its main merits and shortcomings. At the same time, two improved schemes of steam turbine driving compressor are discussed.

A Combined Cycle Power Plant With Absorption Cooling for Houses Air Conditioning

2012 ◽  
Author(s):  
Hamad H. Almutairi ◽  
Jonathan Dewsbury ◽  
Gregory F. Lane-Serff
Keyword(s):  
Power Plant ◽  
Steam Turbine ◽  
Air Conditioning ◽  
Computer Models ◽  
Simulation Software ◽  
Combined Cycle ◽  
Cooling Load ◽  
Direct Expansion ◽  
Absorption Chiller ◽  
Combined Cycle Power Plant

This study examined the viability of a single-effect water/lithium bromide absorption chiller driven by steam extracted from the steam turbine in the configuration of a combined cycle power plant (CCPP). System performance was verified based on the annual cooling load profile of 1,000 typical houses in Kuwait obtained from DesignBuilder building simulation software. Computer models that represented a CCPP with an absorption chiller and a CCPP with a Direct-Expansion (DX) air conditioning system were developed using Engineering Equation Solver software. The computer models interacted with the cooling load profiles obtained from DesignBuilder. Analysis shows that the CCPP with the absorption chiller yielded less net electrical power to the utility grid compared to similar CCPPs giving electricity both to the grid and to the Direct-Expansion air conditioning systems given the same cooling requirements. The reason for this finding is the reduction in steam turbine power output resulting from steam extraction.

Challenges in Designing and Building a 700 MW All-Air-Cooled Steam Electric Power Plant

2011 ◽  
Author(s):  
John T. Langaker ◽  
Christopher Hamker ◽  
Ralph Wyndrum
Keyword(s):  
Power Plant ◽  
Electric Power ◽  
Power Plants ◽  
Combined Cycle ◽  
Air Cooling ◽  
Plant Design ◽  
Auxiliary Equipment ◽  
Turbine Generator ◽  
Plant Equipment ◽  
Dry Cooling

Large natural gas fired combined cycle electric power plants, while being an increasingly efficient and cost effective technology, are traditionally large consumers of water resources, while also discharging cooling tower blowdown at a similar rate. Water use is mostly attributed to the heat rejection needs of the gas turbine generator, the steam turbine generator, and the steam cycle condenser. Cooling with air, i.e. dry cooling, instead of water can virtually eliminate the environmental impact associated with water usage. Commissioned in the fall of 2010 with this in mind, the Halton Hills Generating Station located in the Greater Toronto West Area, Ontario, Canada, is a nominally-rated 700 Megawatt combined cycle electric generating station that is 100 percent cooled using various air-cooled heat exchangers. The resulting water consumption and wastewater discharge of this power plant is significantly less than comparably sized electric generating plants that derive cooling from wet methods (i.e, evaporative cooling towers). To incorporate dry cooling into such a power plant, it is necessary to consider several factors that play important roles both during plant design as well as construction and commissioning of the plant equipment, including the dry cooling systems. From the beginning a power plant general arrangement and space must account for dry cooling’s increase plot area requirements; constraints therein may render air cooling an impossible solution. Second, air cooling dictates specific parameters of major and auxiliary equipment operation that must be understood and coordinated upon purchase of such equipment. Until recently traditional wet cooling has driven standard designs, which now, in light of dry cooling’s increase in use, must be re-evaluated in full prior to purchase. Lastly, the construction and commissioning of air-cooling plant equipment is a significant effort which demands good planning and execution.

Inlet Fogging for a 655 MW Combined Cycle Power Plant: Design, Implementation and Operating Experience

2003 ◽  
Author(s):  
Hemant Gajjar ◽  
Mustapha Chaker ◽  
Ajay Dighe ◽  
Cyrus B. Meher-Homji
Keyword(s):  
High Temperature ◽  
Power Plant ◽  
Low Frequency ◽  
Operating Experience ◽  
Combined Cycle ◽  
Plant Design ◽  
Proper Selection ◽  
Combined Cycle Power Plant ◽  
Technical Details ◽  
Selection Of

The design, installation, commissioning and operation of a fogging system for a large 655 MW combined cycle power plant is described. Technical details and practical installation issues are discussed. Special considerations as to how the fogging system could help in the augmentation of power during high temperature and low frequency operation of the gas turbine is discussed. Finally a discussion is made regarding the importance of inlet filtration and the proper selection of blade coatings.

scholarly journals Thermodynamic analysis of heat recovery steam generator in combined cycle power plant

2007 ◽  
Vol 11 (4) ◽  
pp. 143-156 ◽  
Author(s):  
Kumar Ravi ◽  
Krishna Rama ◽  
Rama Sita
Keyword(s):  
Power Plant ◽  
Steam Turbine ◽  
Gas Turbine ◽  
Steam Generator ◽  
Heat Recovery ◽  
Combined Cycle ◽  
Heat Recovery Steam Generator ◽  
Combined Cycle Power Plant ◽  
Pressure Steam ◽  
Turbine Output

Combined cycle power plants play an important role in the present energy sector. The main challenge in designing a combined cycle power plant is proper utilization of gas turbine exhaust heat in the steam cycle in order to achieve optimum steam turbine output. Most of the combined cycle developers focused on the gas turbine output and neglected the role of the heat recovery steam generator which strongly affects the overall performance of the combined cycle power plant. The present paper is aimed at optimal utilization of the flue gas recovery heat with different heat recovery steam generator configurations of single pressure and dual pressure. The combined cycle efficiency with different heat recovery steam generator configurations have been analyzed parametrically by using first law and second law of thermodynamics. It is observed that in the dual cycle high pressure steam turbine pressure must be high and low pressure steam turbine pressure must be low for better heat recovery from heat recovery steam generator.

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