Silencing Considerations for Large Gas Turbine Generator Sets

1971 ◽  
Author(s):  
M. W. Surowiec
Keyword(s):  
Gas Turbine ◽  
Noise Level ◽  
Noise Sources ◽  
Turbine Generator ◽  
System Noise ◽  
Generator Sets ◽  
Made In

An attempt is made in this paper to inform the reader of the noise sources which are a problem when attempting to meet various criteria. Starting with the relatively easy-to-meet criteria of NEMA H to the more difficult NEMA D, and the stringent criteria of NEMA B, various noise components which could cause the overall system noise level to miss the specified criteria are considered, and their effect to the system is shown.

scholarly journals Natural Gas

2011 ◽  
Vol 133 (04) ◽  
pp. 52-52
Author(s):  
Rainer Kurz
Keyword(s):  
Natural Gas ◽  
Gas Turbine ◽  
Gas Turbines ◽  
Oil And Gas ◽  
Electrical Power ◽  
Offshore Platforms ◽  
Electric Motors ◽  
Turbine Generator ◽  
Associated Gas ◽  
Generator Sets

This article discusses the importance of gas turbines, centrifugal compressors and pumps, and other turbomachines in processes that bring natural gas to the end users. To be useful, the natural gas coming from a large number of small wells has to be gathered. This process requires compression of the gas in several stages, before it is processed in a gas plant, where contaminants and heavier hydrocarbons are stripped from the gas. From the gas plant, the gas is recompressed and fed into a pipeline. In all these compression processes, centrifugal gas compressors driven by industrial gas turbines or electric motors play an important role. Turbomachines are used in a variety of applications for the production of oil and associated gas. For example, gas turbine generator sets often provide electrical power for offshore platforms or remote oil and gas fields. Offshore platforms have a large electrical demand, often requiring multiple large gas turbine generator sets. Similarly, centrifugal gas compressors, driven by gas turbines or by electric motors are the benchmark products to pump gas through pipelines, anywhere in the world.

scholarly journals Hydromechanical Fuel Control for Portable Gas Turbine Generator Sets

1968 ◽  
Author(s):  
G. E. Parker
Keyword(s):  
Gas Turbine ◽  
Gas Turbines ◽  
Production Cost ◽  
Light Weight ◽  
Turbine Generator ◽  
Design Problems ◽  
Ambient Temperatures ◽  
High Speeds ◽  
Wide Range ◽  
Generator Sets

Controls for small lightweight gas turbines present some unique design problems. The requirements for small size, light weight, ability to rotate at high speeds to save reduction gearing, and low production cost conflict with the requirements for reasonably accurate control of very small fuel flows and the scheduling of a wide range of hydrocarbon fuels over a wide range of ambient temperatures. This paper discusses in some detail the design of such a control and the satisfactory results obtained.

Testing an APU for Potential Service Aboard a U.S. Naval Destroyer

1994 ◽  
Author(s):  
George W. Francis
Keyword(s):  
High Pressure ◽  
Gas Turbine ◽  
Life Cycle Management ◽  
Signal Model ◽  
Turbine Generator ◽  
Auxiliary Power ◽  
Broad Array ◽  
Auxiliary Power Units ◽  
Generator Sets ◽  
Naval Surface Warfare

Incentives exist for replacing ships high pressure gas turbine emergency start air systems with auxiliary power units (APUs). The Allied Signal, Model GTCP 100-82 is one option. It is currently used in Naval aircraft start carts. Interest has been kindled in a shipboard application primarily for emergency starting Ship Service Gas Turbine Generator Sets. This APU is tested at the Naval Surface Warfare Center Carderock Division facility in Philadelphia. The target ships for this application is the future addition to the DDG-51 Class, AEGIS Destroyers. Advantages from both financial and life cycle management perspectives are expected from standardized air and sea service. This APU application concept, and variations of it, are overtly suited to a broad array of similar installations.

Improving Operational Availability of Gas Turbine Generators Aboard U.S. Navy DDG-51 Class Ships by Combining the Capabilities of the Integrated Condition Assessment System (ICAS) and the Generator Set’s Full Authority Digital Controller (FADC)

2005 ◽  
Author(s):  
Dennis M. Russom ◽  
Russell A. Leinbach ◽  
Helen J. Kozuhowski ◽  
Dana D. Golden
Keyword(s):  
Life Cycle ◽  
Gas Turbine ◽  
Condition Assessment ◽  
Assessment System ◽  
Digital Controller ◽  
Life Cycle Costs ◽  
Turbine Generator ◽  
Turbine Generators ◽  
Generator Sets ◽  
The U.S

Operational availability of Gas Turbine Generator Sets (GTGs) aboard the U.S. Navy’s DDG 51 Class ships is being enhanced through the combined capabilities of the ship’s Integrated Condition Assessment System (ICAS) and the GTG’s Full Authority Digital Control (FADC). This paper describes the ICAS and FADC systems; their current capabilities and the vision of how those capabilities will evolve in order to improve equipment readiness and reduce life cycle costs.

scholarly journals Phase 1 Testing of the Redundant Internal Mechanical Start System for the Ship Service Gas Turbine Generator Sets on the U.S. Navy’s DDG-51 Class Ships

1997 ◽  
Author(s):  
Dennis M. Russom ◽  
William E. Masincup ◽  
John Eghtessad
Keyword(s):  
Gas Turbine ◽  
Systems Engineering ◽  
Phase 1 ◽  
Extended Period ◽  
Turbine Generator ◽  
Turbine Engine ◽  
Generator Sets ◽  
Life Predictions ◽  
Successful Phase ◽  
The U.S

The Redundant Independent Mechanical Start System (RIMSS) is a gas turbine powered, mechanically coupled start system for the Allison AG9140 Ship Service Gas Turbine Generator Sets (SSGTGs) of the U.S. Navy’s DDG-51 Class ships. The system will be original equipment on DDG-86 and follow. It will also be a candidate for backfit onto earlier DDG-51 Class ships. This paper describes RIMSS and details a very successful phase of the RIMSS program. All U.S. Navy testing was conducted on an Allison AG9140 located at the Carderock Division, Naval Surface Warfare Center-Ship Systems Engineering Station, DDG-51 Gas Turbine Ship Land Based Engineering Site (NSWCCD-SSES LBES), Figure 1. The test agenda included 516 SSGTG starts and 75 SSGTG motoring cycles. The primary goal was to validate engine life predictions for the Allison 250-C20B gas turbine engine in the RIMSS application. A secondary goal was to evaluate the overall RIMSS system during an extended period of operation.

High-Speed Generators for Power-Dense, Medium-Power, Gas Turbine Generator Sets

2007 ◽  
Vol 119 (2) ◽  
pp. 63-81 ◽  
Author(s):  
RAY M. CALFO ◽  
MATT B. SMITH ◽  
JOHN E. TESSARO
Keyword(s):  
Gas Turbine ◽  
High Speed ◽  
Dense Medium ◽  
Turbine Generator ◽  
Generator Sets

The Gas Turbine as a Source of Continuous Precise Power

1969 ◽  
Author(s):  
Robin Mackay
Keyword(s):  
Real Time ◽  
Gas Turbine ◽  
Power Quality ◽  
Sound Level ◽  
Third Generation ◽  
Time Sharing ◽  
Turbine Generator ◽  
Shock Loads ◽  
On Line ◽  
Generator Sets

Third generation computers require precise uninterrupted power. Without it, they can make errors or shut down. Where computers are used in real-time or time sharing applications, power quality is particularly important. Gas turbine-driven generators are now being used to provide continuous precise power. There is no connection to utility lines. One more generator set than is necessary to meet the load is always on line. Thus even in the event of a failure, the malfunctioning generator set can be isolated. The remaining set(s) can handle the full computer load without interruption. A series of tests were conducted to determine whether or not the turbine generator sets could maintain frequency during paralleling, simulated failures, shock loads, faults, and internal shorts. The results of the above tests along with sound level, maintenance and general installation information are included in this paper. Also covered are details of three specific installations currently on-line.

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.

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