Geoffrey Bertram Robert Feilden CBE. 20 February 1917 – 1 May 2004

2005 ◽  
Vol 51 ◽  
pp. 135-148
Author(s):  
Kelvin Bray ◽  
Alexander Moulton
Keyword(s):  
Gas Turbines ◽  
High Reliability ◽  
Prime Mover ◽  
Remote Operation ◽  
The World ◽  
Industrial Gas Turbines ◽  
Innovative Work ◽  
Scientists And Engineers

Bob Feilden will be remembered by scientists and engineers around the world for his innovative work on industrial gas turbines which became, in the Ruston Type TAgas turbine, a prime mover of choice for all those who wanted high reliability and automatic or remote operation.

scholarly journals A Gas Turbine Maintenance Information System for the Saudi Arabian East-West Crude Oil Pipeline

1980 ◽  
Author(s):  
T. W. Temple ◽  
F. L. Foltz ◽  
H. R. Jamalallail
Keyword(s):  
Information System ◽  
Crude Oil ◽  
Gas Turbines ◽  
High Reliability ◽  
Maximum Throughput ◽  
Prognostic System ◽  
Oil Pipeline ◽  
Availability Constraints ◽  
Industrial Gas Turbines ◽  
East West

The 747-mile East-West Crude Oil Pipeline across Saudi Arabia employs 60 gas turbines for pumping and power generation. Mainline pump drives are three United Technologies Corporation FT4A-9 modular industrial gas turbines at each of 11 pumping stations. Two of the three mainline gas turbines are required for maximum throughput, while the third is an operational spare. High reliability and availability constraints and the remote unmanned station concept underscore the need for a modern maintenance information system. This paper describes an independent multiple-fault diagnostic/prognostic system, employing a patented gas path analysis technique.

Adaptive Control of Microgas Turbine for Engine Degradation Compensation

2020 ◽  
Vol 142 (4) ◽  
Author(s):  
Valentina Zaccaria ◽  
Mario L. Ferrari ◽  
Konstantinos Kyprianidis
Keyword(s):  
Adaptive Control ◽  
Gas Turbine ◽  
Gas Turbines ◽  
High Reliability ◽  
Energy Conversion Efficiency ◽  
Health Condition ◽  
Effective Control ◽  
Inlet Temperature ◽  
Or Efficiency ◽  
Industrial Gas Turbines

Abstract Microgas turbine (MGT) engines in the range of 1–100 kW are playing a key role in distributed generation applications, due to the high reliability and quick load following that favor their integration with intermittent renewable sources. Micro-combined heat and power (CHP) systems based on gas turbine technology are obtaining a higher share in the market and are aiming at reducing the costs and increasing energy conversion efficiency. An effective control of system operating parameters during the whole engine lifetime is essential to maintain desired performance and at the same time guarantee safe operations. Because of the necessity to reduce the costs, fewer sensors are usually available than in standard industrial gas turbines, limiting the choice of control parameters. This aspect is aggravated by engine aging and deterioration phenomena that change operating performance from the expected one. In this situation, a control architecture designed for healthy operations may not be adequate anymore, because the relationship between measured parameters and unmeasured variables (e.g., turbine inlet temperature (TIT) or efficiency) varies depending on the level of engine deterioration. In this work, an adaptive control scheme is proposed to compensate the effects of engine degradation over the lifetime. Component degradation level is monitored by a diagnostic tool that estimates performance variations from the available measurements; then, the information on the gas turbine health condition is used by an observer-based model predictive controller to maintain the machine in a safe range of operation and limit the reduction in system efficiency.

Robust Gas Turbine Design

2002 ◽  
Author(s):  
Bernard Becker
Keyword(s):  
Gas Turbines ◽  
High Reliability ◽  
Operating Experience ◽  
Turbine Rotor ◽  
Operational Reliability ◽  
Design Features ◽  
Industry Standard ◽  
Industrial Gas Turbines ◽  
Turbine Design ◽  
Very High

Industrial gas turbines utilize numerous design features that cannot be implemented in jet aircraft turbines for weight reasons, but because of their straight-forward and robust nature trim costs and reduce both maintenance effort and operating risks. Regardless of manufacturer, the following design features, for example, have become the established industry standard: • single-shaft rotor; • 2 bearings at atmospheric pressure; • Journal bearing instead of ball bearings; • steel blading in the compressor. For the key components compressor, turbine, rotor, and combustion chamber of its 3A family (Fig. 1), Siemens has developed and tested additional features that reduce wear further and improve operational reliability. Operating experience gathered to date has shown that these features enable achievements of very high reliability and availability. Some of the measures described also contribute to enhanced output and efficiency.

Environmental Performance of Industrial Gas Turbines

1974 ◽  
Author(s):  
R. H. Johnson ◽  
Colin Wilkes
Keyword(s):  
Air Pollution ◽  
Carbon Monoxide ◽  
Environmental Performance ◽  
Gas Turbines ◽  
Hydrocarbon Fuel ◽  
Industrial Society ◽  
Oxides Of Nitrogen ◽  
The World ◽  
Industrial Gas Turbines ◽  
Power Needs

At this point in time, everyone is “for the environment” and this is true the world world over because the atmosphere is shared by peoples of all nations. Air pollution from hydrocarbon fuel combustion, both worldwide and local, is discussed by reviewing known measurements of contaminants. Application of gas turbines by industry is one way to provide power needs for attaining and maintaining an industrial society. Environmental performance of industrial gas turbines with respect to exhaust emissions and environmental impact is presented for oxides of nitrogen, hydrocarbons, carbon monoxide, particulate matter and visible smoke. Results of recent abatement efforts are also presented together with estimates of potential improvements to show the place of the industrial combustion turbine in a world with growing concern for environmental improvement.

A Repair Alternative for Worn Square-Base Compressor Vanes

2004 ◽  
Author(s):  
Rodger O. Anderson ◽  
Fred T. Willett
Keyword(s):  
Gas Turbines ◽  
Field Experience ◽  
Root Cause ◽  
Sliding Motion ◽  
Alternative Approach ◽  
The World ◽  
Industrial Gas Turbines ◽  
Classic Solution ◽  
Over Time

Square base compressor vanes are a simple time-tested design and are in use in hundreds of large industrial gas turbines throughout the world. The square base of the vane fits inside a carrier slot machined into the compressor casing. Over time, the motion of the vane base, during operation and due to start-stop cycles, results in wear of both the vane base and the compressor casing. The classic solution to this wear problem is vane replacement and extensive repair of the casing either by welding or remachining and adding a patch ring. The square base compressor vane design is described, along with exemplary evidence of the wear problem. An alternative to the expensive repair is presented. The alternative approach addresses the root cause of the wear, i.e., the sliding motion at the vane base–casing interface. The vane contact is modeled with and without the solution to show, analytically, the benefit of the alternative approach. Successful field experience is also presented and discussed.

scholarly journals Large Heavy-Duty Gas Turbines for Base-Load Power Generation and Heat Cogeneration

1985 ◽  
Author(s):  
John S. Joyce
Keyword(s):  
Power Generation ◽  
Gas Turbines ◽  
High Reliability ◽  
Combined Cycle ◽  
Steam Turbines ◽  
Heavy Duty ◽  
Continuous Service ◽  
Industrial Gas Turbines ◽  
Bulk Power ◽  
Base Load

The predominant role of large gas turbines has shifted from peaking-load duty to midrange and base-load electric power generation, especially within combined-cycle plants. Such applications require heavy-duty industrial gas turbines to ensure the same high reliability and availability for continuous service as the associated steam turbines. It is also important that the gas turbines be designed for low maintenance to minimize the necessary outage times and costs for component repair and replacement. The basic design principles and applications of Model V94 gas turbines are discussed with special reference to highly reliable and economic bulk power generation.

Future Directions in International Science Education

1997 ◽  
Vol 3 (1) ◽  
pp. 233-239 ◽  
Author(s):  
Patrick Holmes
Keyword(s):  
Science Education ◽  
Engineering Education ◽  
Science And Engineering ◽  
Future Directions ◽  
International Dimension ◽  
The World ◽  
Scientists And Engineers ◽  
Science And Engineering Education

The international dimension of science and engineering education is of paramount importance and merits serious consideration of the coherent skill set that is required to allow scientists and engineers more readily to transport themselves and their work to other locations in the world. 

Fuel System Suitability Considerations for Industrial Gas Turbines

2004 ◽  
Vol 126 (1) ◽  
pp. 119-126 ◽  
Author(s):  
F. G. Elliott ◽  
R. Kurz ◽  
C. Etheridge ◽  
J. P. O’Connell
Keyword(s):  
Gas Turbines ◽  
Equations Of State ◽  
Dew Point ◽  
Liquid Fuels ◽  
Physical Parameters ◽  
Special Focus ◽  
Fuel System ◽  
Fuel Gas ◽  
Pressure Drops ◽  
Industrial Gas Turbines

Industrial Gas Turbines allow operation with a wide variety of gaseous and liquid fuels. To determine the suitability for operation with a gas fuel system, various physical parameters of the proposed fuel need to be determined: heating value, dew point, Joule-Thompson coefficient, Wobbe Index, and others. This paper describes an approach to provide a consistent treatment for determining the above physical properties. Special focus is given to the problem of determining the dew point of the potential fuel gas at various pressure levels. A dew point calculation using appropriate equations of state is described, and results are presented. In particular the treatment of heavier hydrocarbons, and water is addressed and recommendations about the necessary data input are made. Since any fuel gas system causes pressure drops in the fuel gas, the temperature reduction due to the Joule-Thompson effect has to be considered and quantified. Suggestions about how to approach fuel suitability questions during the project development and construction phase, as well as in operation are made.

Deformation and Fracture Behaviors in the Freestanding APS-TBC - Effects of Process Parameters and Thermal Exposure

2007 ◽  
Vol 353-358 ◽  
pp. 1935-1938 ◽  
Author(s):  
Yasuhiro Yamazaki ◽  
T. Kinebuchi ◽  
H. Fukanuma ◽  
N. Ohno ◽  
K. Kaise
Keyword(s):  
Mechanical Properties ◽  
Process Parameters ◽  
Gas Turbines ◽  
Thermal Exposure ◽  
Substrate Material ◽  
Process Variables ◽  
Microstructural Investigation ◽  
Deformation And Fracture ◽  
Industrial Gas Turbines ◽  
Tbc Systems

Thermal barrier coatings (TBCs), that reduce the temperature in the underlying substrate material, are an essential requirement for the hot section components of industrial gas turbines. Recently, in order to take full advantage of the potential of the TBC systems, experimental and analytical investigations in TBC systems have been performed. However there is a little information on the deformation behavior of the top coating. In addition, the effects of the thermal exposure and the process parameters on the mechanical properties of the top coating have never been clarified. From these backgrounds, the effects of the process variables in APS and the thermal exposure on the mechanical properties were investigated in order to optimize the APS process of top coatings. The experimental results indicated that the mechanical properties of the APS-TBC, i.e. the tensile strength and the elastic modulus, were significantly changed by the process variables and the long term thermal exposure. The microstructural investigation was also carried out and the relationship between the mechanical properties and the porosity was discussed.

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