scholarly journals Some Environmental Considerations in Large Gas Turbine Power Stations

1982 ◽  
Author(s):  
P. Collotte ◽  
M. DeFlandre
Keyword(s):  
Gas Turbine ◽  
Noise Abatement ◽  
Power Stations ◽  
Large Size ◽  
Environmental Considerations

The increasing need to locate gas turbine power stations in the vicinity of residential sections forces the manufacturer to meet stringent noise abatement requirements which seems to get stricter as time progresses. This paper identifies major sources of noise emitted by gas turbine power stations, analyzes the techniques to reduce the emission and to suppress the propagation of this noise, describes practical approaches and reports measurements performed on medium and large size installations. Finally the economics of adequate silencing is considered.

Testing of power-generating gas-turbine plants at Russian electric power stations

2006 ◽  
Vol 40 (4) ◽  
pp. 251-257
Author(s):  
G. G. Ol’khovskii ◽  
A. V. Ageev ◽  
S. V. Malakhov ◽  
S. D. Nagornyi ◽  
V. P. Trushechkin ◽  
...  
Keyword(s):  
Electric Power ◽  
Gas Turbine ◽  
Power Stations

Rosenhain Centenary Conference - 1. Engineering requirements 1.6 Gas turbine requirements Discussion

1976 ◽  
Vol 282 (1307) ◽  
pp. 123-130
Keyword(s):  
Gas Turbine ◽  
Gas Turbines ◽  
High Strain ◽  
Peak Load ◽  
Great Majority ◽  
Growth Monitoring ◽  
Fuel Quality ◽  
High Sodium ◽  
Power Stations ◽  
Operational Life

The C.E.G.B. interest in gas turbines has developed steadily during the past decade from auxiliary service functions in large fossil-fuelled power stations to small power stations, entirely of gas turbine plant, whose principal purpose is to meet peak load demands. Here the ability of the gas turbine to be started up very rapidly is an important attribute. The great majority of these gas turbine units have been derived from the use of established aero engines, such as the Avon and Olympus, as gas generators to drive a power turbine. These units are subject to planned maintenance after, at the most, 2000 h of operation when burning distillate fuel. There have been instances of blade corrosion problems due to sulphidation attack and related high sodium levels in the fuel; the solution to this problem has been to control the fuel quality. Two prototype industrial gas turbines, each of ca. 55 MW output, are due to be commissioned at one of the Board’s power stations in the near future. Here the aimed-for operational life before undertaking planned maintenance will be ca. 20000 h. This places greater emphasis on the need to appreciate any time-dependent process affecting engineering performance. From a materials standpoint these are corrosion resistance, thermal and high strain fatigue and creeprupture. Specific problems under study in blade materials are the consequences of corrosion-resistant coatings upon the mechanical properties and the limits of acceptability of defects. The latter involves crack growth monitoring under conditions of creep, high strain and high cycle fatigue. As the future emphasis should be directed towards gaining a better understanding of material behaviour in the projected engineering situations the physical metallurgist has to think beyond the metals themselves and consider, for example, the interactions that occur between metals and coatings.

The Extension of Gas Turbine Power Plants to Combined Cycle Power Stations

1986 ◽  
Author(s):  
Wolfgang Schemenau ◽  
Ulrich Häuser
Keyword(s):  
Developing Countries ◽  
Gas Turbine ◽  
Power Plants ◽  
Electricity Consumption ◽  
Combined Cycle ◽  
Ambient Conditions ◽  
Continuous Growth ◽  
Clean Fuel ◽  
Industrial Countries ◽  
Power Stations

In industrial countries as well as in developing countries there is a continuous growth of electricity consumption. The normal way to meet these requirements is the stepwise extension of electricity producing plants. In countries where clean fuel is available at acceptable prices the advantages of combined cycle plants in terms of efficiency and of smooth meeting the requirements can be used. The following essay concentrates on the influences of design criterias and ambient conditions on efficiency, output and plant cost for the type of CCP which is most frequently excecuted. As a result of an optimization an executed plant is described also with regard to lay out, required space and erection time.

Gas-turbine power stations on associated gas by Motor Sich OJSC

2011 ◽  
Vol 81 (12) ◽  
pp. 2564-2567 ◽  
Author(s):  
P. A. Gorbachev ◽  
V. G. Mikhailutsa
Keyword(s):  
Gas Turbine ◽  
Associated Gas ◽  
Power Stations

A Thermodynamic Analysis of Different Options to Break 60% Electric Efficiency in Combined Cycle Power Plants

2004 ◽  
Vol 126 (4) ◽  
pp. 770-785 ◽  
Author(s):  
Paolo Chiesa ◽  
Ennio Macchi
Keyword(s):  
Gas Turbine ◽  
Thermodynamic Analysis ◽  
Gas Turbines ◽  
Power Plants ◽  
Closed Loop ◽  
Open Loop ◽  
Combined Cycle ◽  
Rotor Blades ◽  
Air Cooling ◽  
Large Size

All major manufacturers of large size gas turbines are developing new techniques aimed at achieving net electric efficiency higher than 60% in combined cycle applications. An essential factor for this goal is the effective cooling of the hottest rows of the gas turbine. The present work investigates three different approaches to this problem: (i) the most conventional open-loop air cooling; (ii) the closed-loop steam cooling for vanes and rotor blades; (iii) the use of two independent closed-loop circuits: steam for stator vanes and air for rotor blades. Reference is made uniquely to large size, single shaft units and performance is estimated through an updated release of the thermodynamic code GS, developed at the Energy Department of Politecnico di Milano. A detailed presentation of the calculation method is given in the paper. Although many aspects (such as reliability, capital cost, environmental issues) which can affect gas turbine design were neglected, thermodynamic analysis showed that efficiency higher than 61% can be achieved in the frame of current, available technology.

scholarly journals Mechanical and Process Design of the Flevo Power Station Conversion Project

1989 ◽  
Author(s):  
J. Feenstra ◽  
P. Kamminga
Keyword(s):  
The Netherlands ◽  
Gas Turbine ◽  
Process Design ◽  
Gas Turbines ◽  
Combined Cycle ◽  
Power Station ◽  
Power Stations ◽  
The North

EPON operates a number of power stations in the north of the Netherlands. At some of these the forced-draught-fans have been replaced by gas turbines. Unit 3 of Flevo Power Station was the latest repowering project in the Netherlands. This paper gives a description of the most important points of the mechanical, and process design of the combined cycle unit and the influence of the gas turbine on the starting procedure.

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