scholarly journals WR-21 Intercooled Recuperated Gas Turbine System Overview and Update

1997 ◽  
Author(s):  
Carl L. Weiler ◽  
John Chiprich
Keyword(s):  
Gas Turbine ◽  
United States Navy ◽  
Development Program ◽  
The United States ◽  
Royal Navy ◽  
Operation System ◽  
System Description ◽  
Turbine Engine ◽  
Westinghouse Electric Corporation ◽  
Westinghouse Electric

In December 1991, the United States Navy awarded a contract to Northrop Grumman Marine Systems (then Westinghouse Electric Corporation) for the design and development of an intercooled, recuperated gas turbine engine system (ICR). The system is known by the designation WR-21. The development team includes Northrop Grumman as the prime contractor and system integrator, Rolls-Royce (RR) as the gas turbine developer, Allied Signal as developer of the recuperator cores, recuperator housing, and intercooler cores, and CAE Electronics Ltd. as the digital controller developer. After the development program began, the Royal Navy and the French Navy became interested in the ICR technology and have since become active program participants. The Navy team’s joint goal is to design, develop, and qualify a fuel efficient engine for future surface combatants. This paper provides an overview and update of the WR-21 requirements, principles of operation, system description/performance, and the development program.

Case Closed: The Completion of the United States Navy 501-K34 Gas Turbine Engine RADCON Program (2011 - 2019)

2021 ◽  
Author(s):  
Jeffrey S. Patterson ◽  
Kevin Fauvell ◽  
Dennis Russom ◽  
Willie A. Durosseau ◽  
Phyllis Petronello ◽  
...  
Keyword(s):  
United States ◽  
Gas Turbine ◽  
United States Navy ◽  
The United States ◽  
Gas Turbine Engine ◽  
United States Government ◽  
Turbine Engines ◽  
Gas Turbine Engines ◽  
Turbine Engine ◽  
The U.S

Abstract The United States Navy (USN) 501-K Series Radiological Controls (RADCON) Program was launched in late 2011, in response to the extensive damage caused by participation in Operation Tomodachi. The purpose of this operation was to provide humanitarian relief aid to Japan following a 9.0 magnitude earthquake that struck 231 miles northeast of Tokyo, on the afternoon of March 11, 2011. The earthquake caused a tsunami with 30 foot waves that damaged several nuclear reactors in the area. It was the fourth largest earthquake on record (since 1900) and the largest to hit Japan. On March 12, 2011, the United States Government launched Operation Tomodachi. In all, a total of 24,000 troops, 189 aircraft, 24 naval ships, supported this relief effort, at a cost in excess of $90.0 million. The U.S. Navy provided material support, personnel movement, search and rescue missions and damage surveys. During the operation, 11 gas turbine powered U.S. warships operated within the radioactive plume. As a result, numerous gas turbine engines ingested radiological contaminants and needed to be decontaminated, cleaned, repaired and returned to the Fleet. During the past eight years, the USN has been very proactive and vigilant with their RADCON efforts, and as of the end of calendar year 2019, have successfully completed the 501-K Series portion of the RADCON program. This paper will update an earlier ASME paper that was written on this subject (GT2015-42057) and will summarize the U.S. Navy’s 501-K Series RADCON effort. Included in this discussion will be a summary of the background of Operation Tomodachi, including a discussion of the affected hulls and related gas turbine equipment. In addition, a discussion of the radiological contamination caused by the disaster will be covered and the resultant effect to and the response by the Marine Gas Turbine Program. Furthermore, the authors will discuss what the USN did to remediate the RADCON situation, what means were employed to select a vendor and to set up a RADCON cleaning facility in the United States. And finally, the authors will discuss the dispensation of the 501-K Series RADCON assets that were not returned to service, which include the 501-K17 gas turbine engine, as well as the 250-KS4 gas turbine engine starter. The paper will conclude with a discussion of the results and lessons learned of the program and discuss how the USN was able to process all of their 501-K34 RADCON affected gas turbine engines and return them back to the Fleet in a timely manner.

LM2500 Reliability Improvements for United States Navy Applications

2000 ◽  
Author(s):  
Matthew Driscoll ◽  
Thomas Habib ◽  
William Arseneau
Keyword(s):  
United States ◽  
Gas Turbine ◽  
United States Navy ◽  
The United States ◽  
Turbine Engines ◽  
Gas Turbine Engines ◽  
Turbine Engine ◽  
Standard Configuration ◽  
Program Plan ◽  
Improve Reliability

The United States Navy uses the General Electric LM2500 gas turbine engine for main propulsion on its newest surface combatants including the OLIVER HAZARD PERRY (FFG 7) class frigates, SPRUANCE (DD 963) class destroyers, TICONDEROGA (CG 47) class cruisers, ARLIEGH BURKE (DDG 51) class destroyers and SUPPLY (AOE 6) class oilers. Currently, the Navy operates a fleet of over 400 LM2500 gas turbine engines. This paper discusses the ongoing efforts to characterize the availability of the engines aboard ship and pinpoint systems/components that have significant impact on engine reliability. In addition, the program plan to upgrade the LM2500’s standard configuration to improve reliability is delineated.

Integration of the WR-21 Intercooled Recuperated Gas Turbine Into the Royal Navy Type 45 Destroyer

2001 ◽  
Author(s):  
Steven J. McCarthy ◽  
Ian Scott
Keyword(s):  
Gas Turbine ◽  
Distribution System ◽  
Life Cycle Cost ◽  
Electric Propulsion ◽  
Electrical Power ◽  
The United States ◽  
Gas Turbine Engine ◽  
Prime Mover ◽  
Royal Navy ◽  
Turbine Engine

The WR-21 gas turbine engine will be employed by the Royal Navy and potentially by the United States and French Navies in their future Integrated Full Electric Powered Surface Combatants. The WR-21 is an advanced cycle gas turbine that will not only meet the high power generator prime mover requirements of these ships but also offer an efficient cruise generator engine in one power dense package. The engine gives ship designers the freedom to procure, install and maintain one engine to power the vessel over its entire operating profile in place of the traditional two engine ‘cruise’ and ‘boost’ fit. Warship operators will also have a new freedom to configure the warship propulsion plant to return unprecedented Platform Life Cycle Cost reductions in peacetime while retaining operational capability in time of conflict. The Royal Navy is the first user of the WR-21 Intercooled and Recuperated (ICR) gas turbine engine in its Type 45 Area Defense destroyer. The vessel is a 6000 tonne monohull, fitted with an integrated electric propulsion plant comprising two WR-21 Gas Turbine Alternators (GTAs), the prime mover side of which are capable of delivering 25 MW (ISO) and the Alternator side of which is rated at 21.6 MWe (0.9 pf lagging), 4.16KVA. These GTAs in combination with a pair of diesel generators rated at around 2 MWe (0.9 pf lagging) will provide electrical power to two 20 MWe (0.9 pf lagging) 4.16 KVA electric propulsion motors and to the ship’s non propulsion consumer electrical distribution system. Any combination of generator set can provide any consumer with electrical power. This flexibility of propulsion plant configuration will demand a step change in operating culture if its ultimate benefits are to be truly harnessed. Every part of warship propulsion and gas turbine engine operating philosophy must be examined to check its relevance in the modern machinery outfit. The engines themselves must be scrutinized to ensure that they can fulfill the requirements of true ship generation machinery and are not regarded as ‘propulsion generators’. In a Warship that has only four sources of electrical power the principles of survivability and prime mover independence are fundamental.

Advanced Degradation Rates for High Power LM2500 Applications

2006 ◽  
Author(s):  
Matthew J. Driscoll ◽  
Thomas Habib
Keyword(s):  
Gas Turbine ◽  
High Power ◽  
United States Navy ◽  
The United States ◽  
Turbine Engines ◽  
Gas Turbine Engines ◽  
Design Phase ◽  
Turbine Engine ◽  
Operational Profile ◽  
Degradation Rates

Since the early 1970’s, the United States Navy has utilized the General Electric LM2500 gas turbine engine for propulsion aboard its surface combatants including its newest DDG 51 Class Destroyer. These ships have generally operated at a part power operational profile under a COGAG arrangement which has offered system redundancy while exceeding life projections for the gas turbine engines. For its newest ships still in the design phase (LHD 8/LCS/LSC(X)) the Navy intends to continue to utilize gas turbine engines but in different applications including electric drive, high power boost applications in tandem with both diesel engines and electric motor arrangements. Although this paper focuses on the LM2500, its conclusions are meant to apply to a broader scope of future propulsion applications. Specific conclusions are provided describing potential operating profile considerations.

CFD in the Design of Marine Gas Turbine Inlet Air Systems

1995 ◽  
Author(s):  
Kenneth J. Fewel ◽  
Frank J. Kierzkowski
Keyword(s):  
Gas Turbine ◽  
United States Navy ◽  
Single Phase ◽  
State Of The Art ◽  
The United States ◽  
Royal Navy ◽  
Analysis And Evaluation ◽  
Performance Requirements ◽  
Typical Performance ◽  
Computational Fluid Dynamics Cfd

This paper discusses the design of marine gas turbine intake systems and how computational fluid dynamics (CFD) is being used to aid in the design of these systems. Three major types of intake separators and two state-of-the-art intake separators are discussed. A brief summary is included on salt-in-air loadings and requirements as specified by the United States Navy and the British Royal Navy so that typical performance requirements can be understood. The paper covers CFD basics, including grid creation and analysis and evaluation of single-phase flows. The implications for design are then discussed. Finally, marine intake systems using CFD are illustrated with graphics of analyses. The results and conclusions of these projects are presented.

The Navy 500-Hour Test (NFHT) of the Intercooled Recuperated Gas Turbine Engine System (ICR)

2001 ◽  
Author(s):  
Carl P. Grala ◽  
Edward M. House
Keyword(s):  
Gas Turbine ◽  
United States Navy ◽  
Operating Time ◽  
The United States ◽  
Gas Turbine Engine ◽  
Prime Mover ◽  
Turbine Engine ◽  
Major Development ◽  
Qualification Testing ◽  
Engine System

The Intercooled Recuperated Gas Turbine Engine System (ICR) is being developed by the United States Navy (USN) for shipboard application as a prime mover. The major development goal of the program is reduced fuel consumption relative to the LM2500, the current fielded gas turbine prime mover. This paper describes a 500-hour endurance test of the ICR system. The test was conducted at Naval Surface Warfare Center Carderock Division (NSWCCD), Philadelphia, in accordance with USN requirements which mimicked the qualification requirements for the system. Data to assess the capability of the ICR to pass the qualification test was collected. Overall, the ICR has demonstrated a readiness to commence qualification testing. The ICR completed the test with a total accumulated operating time of 457 hours and total endurance time of 322 hours. Achievement of the planned 500 endurance hours was precluded by persistent facility waterbrake problems.

United States Navy 501-K34 Gas Turbine Engine RADCON Effort

2015 ◽  
Author(s):  
Jeffrey S. Patterson ◽  
Kevin D. Fauvell ◽  
Jay McMahon ◽  
Javier O. Moralez
Keyword(s):  
United States ◽  
Gas Turbine ◽  
United States Navy ◽  
The United States ◽  
United States Government ◽  
Turbine Engines ◽  
Gas Turbine Engines ◽  
Humanitarian Relief ◽  
Turbine Engine ◽  
The U.S

On the afternoon of March 11, 2011 at 2:46pm, a 9.0 magnitude earthquake took place 231 miles northeast of Tokyo, Japan, at a depth of 15.2 miles. The earthquake caused a tsunami with 30 foot waves that damaged several nuclear reactors in the area. It was the fourth largest earthquake on record (since 1900) and the largest to hit Japan. On March 12, 2011, the United States Government launched Operation Tomodachi to provide humanitarian relief aid to Japan. In all, a total of 24,000 troops, 189 aircraft, 24 naval ships, supported this relief effort, at a cost of $90.0 million. The U.S. Navy provided material support, personnel movement, search and rescue missions and damage surveys. During the operation, 11 gas turbine U.S. warships operated within the radioactive plume. As a result, numerous gas turbine engines ingested radiological contaminants and are now operating under Radiological Controls (RADCON). This paper will describe the events that lead to Operation Tomodachi, as well as the resultant efforts on the U.S. Navy’s Japanese based gas turbine fleet. In addition, this paper will outline the U.S. Navy’s effort to decontaminate, overhaul and return these RADCON assets back into the fleet.

Future Vehicular Recuperator Technology Projections

1994 ◽  
Author(s):  
Robert A. Wilson ◽  
Daniel B. Kupratis ◽  
Satyanarayana Kodali
Keyword(s):  
Gas Turbine ◽  
Fuel Economy ◽  
Department Of Defense ◽  
Gas Turbines ◽  
High Performance ◽  
Development Program ◽  
Turn Of The Century ◽  
Turbine Engine ◽  
Technology Roadmap ◽  
Vehicle Propulsion

The Department of Defense and NASA have funded a major gas turbine development program, Integrated High Performance Turbine Engine Technology (IHPTET), to double the power density and fuel economy of gas turbines by the turn of the century. Seven major US gas turbine developers participated in this program. While the focus of IHPTET activity has been aircraft propulsion, the same underlying technology can be applied to water craft and terrestrial vehicle propulsion applications, such as the future main battle tank. For these applications, the gas turbines must be equipped with recuperators. Currently, there is no technology roadmap or set of goals to guide industry and government in the development of a next generation recuperator for such applications.

The United States Navy “Standard Day” for Marine Gas Turbines

2017 ◽  
Author(s):  
John Hartranft ◽  
Bruce Thompson ◽  
Dan Groghan
Keyword(s):  
United States ◽  
Gas Turbine ◽  
United States Navy ◽  
Gas Turbines ◽  
The United States ◽  
Industrial Applications ◽  
Jet Engines ◽  
Jet Engine ◽  
Advantages And Disadvantages ◽  
Power Capability

Following the successful development of aircraft jet engines during World War II (WWII), the United States Navy began exploring the advantages of gas turbine engines for ship and boat propulsion. Early development soon focused on aircraft derivative (aero derivative) gas turbines for use in the United States Navy (USN) Fleet rather than engines developed specifically for marine and industrial applications due to poor results from a few of the early marine and industrial developments. Some of the new commercial jet engine powered aircraft that had emerged at the time were the Boeing 707 and the Douglas DC-8. It was from these early aircraft engine successes (both commercial and military) that engine cores such as the JT4-FT4 and others became available for USN ship and boat programs. The task of adapting the jet engine to the marine environment turned out to be a substantial task because USN ships were operated in a completely different environment than that of aircraft which caused different forms of turbine corrosion than that seen in aircraft jet engines. Furthermore, shipboard engines were expected to perform tens of thousands of hours before overhaul compared with a few thousand hours mean time between overhaul usually experienced in aircraft applications. To address the concerns of shipboard applications, standards were created for marine gas turbine shipboard qualification and installation. One of those standards was the development of a USN Standard Day for gas turbines. This paper addresses the topic of a Navy Standard Day as it relates to the introduction of marine gas turbines into the United States Navy Fleet and why it differs from other rating approaches. Lastly, this paper will address examples of issues encountered with early requirements and whether current requirements for the Navy Standard Day should be changed. Concerning other rating approaches, the paper will also address the issue of using an International Organization for Standardization, that is, an International Standard Day. It is important to address an ISO STD DAY because many original equipment manufacturers and commercial operators prefer to rate their aero derivative gas turbines based on an ISO STD DAY with no losses. The argument is that the ISO approach fully utilizes the power capability of the engine. This paper will discuss the advantages and disadvantages of the ISO STD DAY approach and how the USN STD DAY approach has benefitted the USN. For the future, with the advance of engine controllers and electronics, utilizing some of the features of an ISO STD DAY approach may be possible while maintaining the advantages of the USN STD DAY.

scholarly journals 2MW Class High Efficiency Gas Turbine IM270 for Co-Generation Plants

1996 ◽  
Author(s):  
Hideo Kobayashi ◽  
Shogo Tsugumi ◽  
Yoshio Yonezawa ◽  
Riuzou Imamura
Keyword(s):  
Gas Turbine ◽  
High Efficiency ◽  
Mechanical Design ◽  
Development Program ◽  
Gas Turbine Engine ◽  
Maintenance Cost ◽  
Turbine Engine ◽  
Generation Plant ◽  
Emission Regulation ◽  
Heavy Duty Gas Turbine

IHI is developing a new heavy duty gas turbine engine for 2MW class co-generation plants, which is called IM270. This engine is a simple cycle and single-spool gas turbine engine. Target thermal efficiency is the higher level in the same class engines. A dry low NOx combustion system has been developed to clear the strictest emission regulation in Japan. All parts of the IM270 are designed with long life for low maintenance cost. It is planned that the IM270 will be applied to a dual fluid system, emergency generation plant, machine drive engine and so on, as shown in Fig.1. The development program of IM270 for the co-generation plant is progress. The first prototype engine test has been started. It has been confirmed that the mechanical design and the dry low NOx system are practical. The component tuning test is being executed. On the other hand, the component test is concurrently in progress. The first production engine is being manufactured to execute the endurance test using a co-generation plant at the IHI Kure factory. This paper provides the conceptual design and status of the IM270 basic engine development program.

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