Exergy costing analysis and performance evaluation of selected gas turbine power plants

Many unique advantages have stemmed from the use of aircraft-type gas turbine power plants in selected marine propulsion applications; and, as expected, special problems have arisen because of the marine environment, primarily in the areas of parts integrity resulting from cold and hot corrosion and performance deterioration due to compressor fouling. Sulfur in the fuel, together with sea salt in the fuel and combustion air, creates major problems. Programs directed to reduce the detrimental effects, and the results attained are described.

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Exergoeconomic analysis and performance assessment of selected gas turbine power plants

World Journal of Engineering ◽

10.1260/1708-5284.12.3.283 ◽

2015 ◽

Vol 12 (3) ◽

pp. 283-300 ◽

Cited By ~ 5

Author(s):

S.O. Oyedepo ◽

R.O. Fagbenle ◽

S.S. Adefila ◽

Md. Mahbub Alam

Keyword(s):

Combustion Chamber ◽

Gas Turbine ◽

Power Plants ◽

Exergy Analysis ◽

Unit Cost ◽

Exergy Destruction ◽

Improvement Potential ◽

And Performance ◽

Exergoeconomic Analysis ◽

The Cost

In this study, exergoeconomic analysis and performance evaluation of selected gas turbine power plants in Nigeria were carried out. The study was conducted using operating data obtained from the power plants to determine the exergy efficiency, exergy destruction, unit cost of electricity and cost of exergy destruction of the major components of a gas turbine engine in the selected power plants. The results of exergy analysis confirmed that the combustion chamber is the most exergy destructive component compared to other cycle components as expected. The total efficiency defects and overall exergetic efficiency of the selected power plants vary from 38.64 to 69.33% and 15.66 to 30.72% respectively. The exergy analysis further shows that the exergy improvement potential of the selected plants varies from 54.04 MW to 159.88 MW. The component with the highest exergy improvement potential is the combustion chamber and its value varies from 30.21 MW to 88.86 MW. The results of exergoeconomic analysis show that the combustion chamber has the greatest cost of exergy destruction compared to other components. Increasing the gas turbine inlet temperature (GTIT), both the exergy destruction and the cost of exergy destruction of this component were found to decrease. The results of this study revealed that an increase in the GTIT of about 200 K can lead to a reduction of about 29% in the cost of exergy destruction. From exergy costing analysis, the unit cost of electricity produced in the selected power plants varies from cents 1.99 /kWh (N3.16 /kWh) to cents 5.65 /kWh (N8.98 /kWh).

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97/01527 Integrated coal gasification and methanol synthesis power plants. Part II. Parametric analysis and performance evaluation

Fuel and Energy Abstracts ◽

10.1016/s0140-6701(97)84346-9 ◽

1997 ◽

Vol 38 (2) ◽

pp. 119

Keyword(s):

Performance Evaluation ◽

Methanol Synthesis ◽

Parametric Analysis ◽

Power Plants ◽

Coal Gasification ◽

And Performance

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W. R. Hawthorne, W. T. Olson, Design and Performance of Gas Turbine Power Plants. XIII + 563 S. Princeton, N. J., 1960. Princeton University Press. Preis geb. $ 15.00

ZAMM ‐ Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik ◽

10.1002/zamm.19610410615 ◽

1961 ◽

Vol 41 (6) ◽

pp. 269-269

Author(s):

A. Pawlowitsch

Keyword(s):

Gas Turbine ◽

Power Plants ◽

Princeton University ◽

And Performance

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Expanding Expertise With State-of-the-Art Monitoring

Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; General ◽

10.1115/89-gt-95 ◽

1989 ◽

Author(s):

George F. Gramatikas ◽

Daniel L. Davis

Keyword(s):

Performance Evaluation ◽

Gas Turbine ◽

Health Monitoring ◽

Gas Turbines ◽

Performance Enhancement ◽

State Of The Art ◽

Plant Performance ◽

Skilled Personnel ◽

On Line ◽

And Performance

This paper describes a program that groups gas turbines from one or more sites for the purpose of efficient monitoring and performance evaluation. Cost-improved gas turbine and power plant operation is achieved by a new, unified-yet-flexible service approach which combines state-of-the-art microprocessor-based monitoring with routine and emergency evaluation by a core of highly skilled personnel many miles from the operating site. This unique approach delivers expertise which supplements the gas turbine owner’s in-house resources. It is based on a modular concept of condition health monitoring and performance evaluation, including scheduled as well as on-line services. Portable condition health monitoring equipment provides the capability for scheduled plant performance evaluation by service engineers without investment in additional equipment. On-line monitoring includes a PC-based software system and a computer link to the service engineer’s headquarters. Both scheduled and on-line monitoring services include trend evaluation, projected maintenance requirements, maintenance planning assistance and suggestions for performance enhancement.

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