Operating Experience and Economic Benefit of a 3-MW Gas Turbine in an Industrial Peak Shaving Application

1994 ◽  
Author(s):  
Michael H. Jones ◽  
L. M. (Matt) Nall
Keyword(s):  
Gas Turbine ◽  
Electric Energy ◽  
Operating Experience ◽  
Facility Management ◽  
Turbine Generator ◽  
Peak Shaving ◽  
Operating Cycle ◽  
Key Aspects ◽  
Industrial Gas Turbine ◽  
System Operating

In the late 1970’s, due to increasing electric energy costs and the potential for power interruption at Solar Turbines Incorporated’s Harbor Drive manufacturing facility, management evaluated several self-generating options available at the time. With large fluctuating loads and a very limited need for thermal energy, the appropriate solution was determined to be peak shaving. In 1980, a 2.5-MW dual fuel industrial gas turbine generator set was installed. Its intended operating cycle was during on-peak billing periods, 5 days a week throughout the year. Through August 31, 1993, the system has accumulated 22,743 hours of use and 3879 starts. Its overall start reliability has been 99.9% with an availability of 98.2%. Payback on the installation was in 4.2 years. It has continued to generate savings since installation, with net savings for 1992 alone exceeding $470,000. This paper highlights the key aspects of the economic methodology justifying installation of the peak shaving system, operating procedures, maintenance practices and system modifications put in place over the life of the installation.

CFD Analysis of Industrial Gas Turbine Exhaust Diffusers

2002 ◽  
Author(s):  
V. Vassiliev ◽  
S. Irmisch ◽  
S. Florjancic
Keyword(s):  
Gas Turbine ◽  
Measurement Data ◽  
Turbulence Models ◽  
Cfd Analysis ◽  
Cfd Modelling ◽  
Gas Turbine Exhaust ◽  
Key Aspects ◽  
Industrial Gas Turbine ◽  
Turbine Exhaust

The key aspects for the reliable CFD modelling of exhaust diffusers are addressed in this paper. In order to identify adequate turbulence models a number of 2D diffuser configurations have been simulated using different turbulence models and results have been compared with measurements. An automated procedure for a time- and resource-efficient and accurate prediction of complex diffuser configuration is presented. The adequate definitions of boundary conditions for the diffuser simulation using this procedure are discussed. In the second part of this paper, the CFD procedure is being applied to investigate the role of secondary flow on axial diffusers. Prediction results are discussed and compared with available measurement data.

Operating Experience in the Petro-Chemical Industry

1959 ◽  
Author(s):  
J. O. Stephens
Keyword(s):  
Gas Turbine ◽  
Chemical Industry ◽  
Operating Experience ◽  
Thermodynamic Cycle ◽  
Cycle Performance ◽  
Prime Mover ◽  
Industrial Gas Turbine

The industrial gas turbine has gained acceptance in the petro-chemical industry (with its multipurpose cycle) and is now finding increasing application in this field. The reliability of this prime mover has been of paramount importance in petro-chemical applications and it is the purpose of this paper to report operating experience establishing this phase together with the improvement in thermodynamic cycle performance.

scholarly journals A 750-Kw Gas Turbine Generator Set for USS Oklahoma City (CGL-5)

1962 ◽  
Author(s):  
W. M. M. Fowden
Keyword(s):  
Gas Turbine ◽  
Operating Experience ◽  
Oklahoma City ◽  
Turbine Generator ◽  
Electric Generator

A description of a 750-kw emergency and standby electric-generator set as installed in the USS Oklahoma City. Operating experience is summarized. The 1100-hp gas turbine in this set is the largest installed in a U. S. Naval combat ship.

Operational Experience With a 15-MW Gas Turbine Generator in an Iron and Steel Works

1960 ◽  
Author(s):  
F. K. Konig
Keyword(s):  
Gas Turbine ◽  
Gas Turbines ◽  
Operating Experience ◽  
Operational Experience ◽  
Turbine Generator ◽  
Iron And Steel ◽  
Turbine Generators ◽  
Iron And Steel Works ◽  
Basic Philosophy ◽  
Steel Works

The author states the basic philosophy for the installation of gas turbines burning blast-furnace gas in the power-generating systems of an iron and steel works. A description is given of the two gas-turbine generators at the Huttenwerk Rheinhausen, A.G. and their operating experience.

VeLoNOx™ Combustion System Operating Experience on Heavy Duty Gas Turbine

2010 ◽  
Author(s):  
Federico Bonzani ◽  
Carlo Piana ◽  
Domenico Zito
Keyword(s):  
Gas Turbine ◽  
Operating Experience ◽  
Combustion System ◽  
Heavy Duty ◽  
Operational Conditions ◽  
Commercial Operation ◽  
Heavy Duty Gas Turbine ◽  
Service Agreement ◽  
System Operating

In order to improve operability and flexibility, Ansaldo Energia has upgraded its top of the line AE94.3A gas turbine with a new combustion system called VeLoNOx™ (Very Low NOx) based on its own experience. This new combustion system meets the most stringent pollutant limitations (as of today) required by the governments all over EU, i.e. less than 15 ppm NOx emissions. The system has been first tested intensively on a single AE94.3A built by Ansaldo Energia. Due to the long term service agreement with the customer the whole operation has been constantly monitored and all most relevant operational conditions have been tested. Then has been installed on other engines. Up to now VeLoNOx™ combustion systems have been cumulating more than 25000 EOH on many sites, showing very good performances in line with expectations. Orders for many retrofit applications have been already awarded. This paper describes the performance of the system on the units of Ansaldo Energia fleet such as AE94.3A2 and AE94.3A4, focusing on the improvements carried out during commercial operation.

U.S. Navy Rolls-Royce Allison 501-K34 Operating Experience

2000 ◽  
Author(s):  
Dennis M. Russom ◽  
Robert L. Jernoske
Keyword(s):  
Life Cycle ◽  
Gas Turbine ◽  
Operating Experience ◽  
Life Cycle Costs ◽  
Prime Mover ◽  
Turbine Generator ◽  
Prototype Experience ◽  
Generator Sets ◽  
The U.S ◽  
Future Plans

The Rolls-Royce Allison (RRA) 501-K34 serves as the prime mover for the Ship Service Gas Turbine Generator sets (SSGTGs) of the U.S. Navy’s DDG-51 Class ships. Navy experience with the 501-K34 began in 1988 with the testing of the first prototype. Experience to date includes over 700,000 fired hours on a growing fleet of engines. This paper explores that operating experience and discusses future plans to improve the engine’s operational availability while lowering life cycle costs.

Field Evaluation and Operating Experience of the Allison 501-KB5 Industrial Gas Turbine

1986 ◽  
Author(s):  
John A. Latcovich ◽  
Charles S. Bach
Keyword(s):  
Power Generation ◽  
Gas Turbine ◽  
Operating Experience ◽  
Performance Testing ◽  
Field Evaluation ◽  
Low Risk ◽  
Technical Approach ◽  
And Performance ◽  
One Year ◽  
Industrial Gas Turbine

The Allison 501-KB5 3924 KW gas turbine was introduced to the industrial power generation market in 1982 as a low risk upgrade of the 501-KB engine. The aero-derivative and industrial background of the 501-KB engine is discussed along with the technical approach, engine features and performance (20% more power and 6% less fuel than the 501-KB) of the upgrade. The results of a one year field evaluation of an early 501-KB5 engine are presented, including performance testing and teardown inspections conducted after the evaluation. Since introduction in 1982, fifty-five production 501-KB5 engines have been delivered, and the operating experience of these engines, which now exceeds 230,000 hours is presented.

Enabling Technologies for Nuclear Gas Turbine (GT-MHR) Power Conversion System

1994 ◽  
Author(s):  
Colin F. McDonald
Keyword(s):  
Gas Turbine ◽  
Power Conversion ◽  
Operating Experience ◽  
Full Potential ◽  
Compact Heat Exchangers ◽  
Enabling Technologies ◽  
Nuclear Heat ◽  
Helium Gas ◽  
Conversion System ◽  
System Operating

Since the onset of gas-cooled reactor work, almost half a century ago, the potential for direct coupling of a nuclear heat source with a gas turbine power conversion system was recognized, however, the technologies for the realization of this were not available, and the plants operated to date have used Rankine steam turbine power conversion systems. In the early 1990s, technology transfer from the gas turbine and aerospace industries, now make possible the introduction of the gas turbine modular helium reactor (GT-MHR) for utility power generation within the next decade. In this paper the enabling technologies for the helium gas turbine power conversion system are discussed, and these include the turbomachinery, magnetic bearings, compact heat exchangers, and helium system operating experience. Utilizing proven technology, the first GT-MHR plant would operate with an efficiency of 47%, and by exploiting its full potential this could perhaps reach as high as 60% early in the next century.

Development, Testing, and Implementation of a Gas Turbine Starting Clutch With Manual Turning Feature for U.S. Navy Ships

2006 ◽  
Vol 129 (3) ◽  
pp. 785-791 ◽  
Author(s):  
Morgan L. Hendry ◽  
Matthew G. Hoffman
Keyword(s):  
Gas Turbine ◽  
Operating Experience ◽  
Turbine Rotor ◽  
Turbine Generator ◽  
Rotor Rotation ◽  
Turbine Generators ◽  
Generator Sets ◽  
The U.S

Most gas turbine generators rely on an automatic-engaging, free-wheel clutch to connect a starting motor to accelerate the gas turbine generator from zero to some intermediate speed to enable ignition and then provide torque assistance to a higher speed until the gas turbine is self-sustaining. The U.S. Navy has used various designs of starter motors and clutches for its gas turbine fleet. In addition, there has been a requirement to periodically borescope each gas turbine, which has necessitated removal of the starting system and clutch assembly in each instance. This paper examines the U.S. Navy experience with starting clutches and provides details of the development and testing of a synchronous-self-shifting clutch with an additional, stationary, manual turning feature to provide very slow and precise gas turbine rotor rotation for borescope purposes. This paper also gives details of the installation of the first two prototype clutches on the USS Ramage, DDG 61, operating experience for approximately four years, and possible future installations of this type of clutch in U.S. Navy gas turbine generator sets.

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