Status of the Army Closed-Brayton-Cycle Gas Turbine Program

1967 ◽  
Author(s):  
John A. Bailey ◽  
Franklin D. Jordan ◽  
Carey A. Kinney
Keyword(s):  
Gas Turbine ◽  
System Development ◽  
Power Conversion ◽  
Preliminary Evaluation ◽  
Brayton Cycle ◽  
Experimental Facility ◽  
Test Results ◽  
The Status ◽  
Component Development ◽  
History Of

A very brief history of the Army closed-Brayton-cycle gas turbine program is presented as background for discussion of the status and recent test results at the Advanced Power Conversion Experimental Facility at Fort Belvoir. The APCEF program is intended to emphasize component development in contrast to system development at the Advanced Power Conversion Skid Experiment (APCSE) at San Ramon, Calif. The APCEF is described along with the components being tested, experimental test results are discussed and analyzed, and a preliminary evaluation is presented.

scholarly journals Fault Analysis of a Gas Turbine HTGR

1976 ◽  
Author(s):  
R. Chmielewski ◽  
K. Vepa ◽  
L. Cheng ◽  
J. Bowyer
Keyword(s):  
Gas Turbine ◽  
Failure Modes ◽  
Pressure Ratio ◽  
Power Conversion ◽  
Reactor Core ◽  
Pressure Change ◽  
Fault Analysis ◽  
Preliminary Evaluation ◽  
Design Considerations ◽  
Disk Failures

The Gas Turbine High Temperature Gas-Cooled Reactor combines a helium-cooled reactor core of established design with a closed-cycle helium turbine power-conversion system. This paper discusses the design considerations which mitigate the consequences of failure of the rotating machinery located within the reactor vessel. The methods of analysis and summary of results are presented for the failure modes of most concern. The spectrum of potential incidents which have been evaluated include turbine blade, rim, and disk failures. The requirements and design methods for rotor containment are discussed. The turbomachine maintains a pressure ratio of about two between the high and low pressure portions of the loop; postulated failures can, therefore, lead to rapid rates of pressure change. The preliminary evaluation of this internal pressure equilibration is presented.

Performance Testing of the Compact APCSE Closed Brayton-Cycle System

1967 ◽  
Author(s):  
J. M. Janis ◽  
G. S. Braun ◽  
R. D. Ryan
Keyword(s):  
Power Conversion ◽  
Performance Testing ◽  
Primary System ◽  
Brayton Cycle ◽  
Test Results ◽  
Primary Loop ◽  
Cycle System ◽  
Conversion System ◽  
System Components ◽  
Performance Effects

A description of the Advanced Power-Conversion Skid Experiment (APCSE), a 300-kw operating closed Brayton-cycle power-conversion system, is presented. The methods used to predict the performance of the primary-system components and the comparison of these predictions with test results are discussed. Cycle power limitations resulting from deficient performance of some of the primary-loop components, as well as secondary performance effects due to the physical proximity of components, are also discussed.

Perancangan Multicontrol Pada Lampu Berbasis Internet Of Think (IOT)

2018 ◽  
Vol 8 (2) ◽  
pp. 129
Author(s):  
Herpendi Herpendi ◽  
Veri Julianto ◽  
Khairul Anwar Hafizd
Keyword(s):  
Management System ◽  
System Development ◽  
Fast Response ◽  
Test Results ◽  
Household Appliances ◽  
Development Method ◽  
Home Owner ◽  
The Status ◽  
Technological Developments ◽  
Light Management

Technological developments in the communication and information  area can changes the lifestyle of the human become the digital lifestyle. Digitalization on the aspects of life can provide convenience for humans. Like the household appliances that can be controlled by a smartphone. In 2015 Nugraha build a light management system with android smartphone via bluetooth media. In addition, the lights are also can be controlled automatically by time and light (LDR). The disadvantages of this system are the lights that can not be used remotely and can not give notice to the home owner about the status “on or off” of the light.  This research aims  to design a multicontrol system to control the light with several media follows : bluetooth, voice, light (LDR), timer, website and SMS as notification of light status. System development method in this research using Waterfall method. The test results using bluetooth, light(LDR), voice, and timer provide a fast response with average less than 2 seconds.

Marine Gas Turbine Package for the Korean Navy PKX Program

2008 ◽  
Author(s):  
Naytoe Aye ◽  
Glenn McAndrews ◽  
Bob Mendenhall
Keyword(s):  
Gas Turbine ◽  
High Speed ◽  
System Development ◽  
Test Cell ◽  
Production Test ◽  
Prime Mover ◽  
Sea Trial ◽  
Design Evolution ◽  
Marine Propulsion ◽  
Component Development

GE together with MTSI, Woodward, and Bibby Transmissions, has developed and delivered a compact gas turbine package for the Korean Navy. The prime mover is GE’s LM500 engine rated at 5500 shp. Remarkably, the period of execution was only 16 months including the development and construction of the production test cell. The paper will examine all phases of the propulsion system development from ship integration to sea trial results (scheduled for Spring 2008). Of particular interest is the design evolution of the high speed coupling shaft (HSCS). Of all of the component development activities, the HSCS was the most challenging. Progress in this particular area will benefit future marine propulsion programs requiring shock qualification.

Status of Pressurized SOFC/Gas Turbine Power System Development at Siemens Westinghouse

2002 ◽  
Author(s):  
Stephen E. Veyo ◽  
Shailesh D. Vora ◽  
Kavin P. Litzinger ◽  
Wayne L. Lundberg
Keyword(s):  
Fuel Cell ◽  
Power Systems ◽  
Power System ◽  
Gas Turbine ◽  
High Efficiency ◽  
System Development ◽  
Hot Water ◽  
Positive System ◽  
The Status ◽  
And Performance

Pressurized solid oxide fuel cell (PSOFC)/micro gas turbine generator (MTG) hybrid power systems have the potential to generate electric power at high efficiency [circa 60% (net AC/LHV)] at multi-hundred kWe and multi-MWe capacities. Thus, good fuel economy and low CO2 emissions are positive system attributes, as are low NOx and SOx emissions due to the propensity of the SOFC for low NOx generation, the need for no firing of the gas turbine combustor during normal hybrid system power operations, and the use of desulfurized fuel. Exhaust temperatures are sufficiently high to enable the recovery of heat for steam/hot-water production, and system energy efficiencies of at least 80% are feasible. Work is ongoing at Siemens Westinghouse on three PSOFC/MTG power systems. Two, with 220 kWe and 300 kWe capacities, are proof-of-concept demonstration units. The 220 kWe PSOFC/MTG power system is in test at the National Fuel Cell Research Center, University of California-Irvine, and the 300 kWe system, which is currently being designed, will be demonstrated in two tests to be performed in Europe. The status of work on the 220 kWe and 300 kWe power systems is reviewed. The third system is to have capacity of at least 500 kWe. This system, which will be demonstrated also, is viewed as a prototype commercial product. The 500 kWe-class PSOFC/MTG concept is described and performance estimates are presented.

Application of Gas Bearings to Closed-System Brayton-Cycle Turbomachinery—Recent Accomplishments and Potential Problem Areas

1966 ◽  
Vol 88 (4) ◽  
pp. 367-376 ◽  
Author(s):  
P. W. Curwen ◽  
H. F. Jones ◽  
H. Schwarz
Keyword(s):  
Gas Turbine ◽  
Inlet Temperature ◽  
Brayton Cycle ◽  
Test Results ◽  
Development Programs ◽  
Closed Loop System ◽  
Turbine Inlet Temperature ◽  
Gas Bearings ◽  
Shaft Power ◽  
Gas Bearing

Several development programs to demonstrate application of gas-lubricated bearings to gas turbine machinery are presently under way. This paper presents design and initial test data for a 24,000 rpm, 1300 F (turbine inlet temperature) gas-bearing Brayton-cycle turbocompressor operating in a closed-loop system. The bearing system design for a two-shaft power plant, consisting of a 50,000 rpm, 1490 F turbocompressor and a 12,000 rpm turboalternator, is also described. Test results to date demonstrate that gas lubrication, per se, of gas turbine machinery is definitely feasible. However, considerable data are still needed to prove the practical utility of gas bearings. A brief discussion of the needed investigations is presented.

Gas Turbine “Solarization”-Modifications for Solar/Fuel Hybrid Operation

2004 ◽  
Vol 126 (3) ◽  
pp. 872-878 ◽  
Author(s):  
Uri Fisher ◽  
Chemi Sugarmen ◽  
Arik Ring ◽  
Joseph Sinai
Keyword(s):  
Gas Turbine ◽  
Experimental Test ◽  
Cost Reduction ◽  
Gas Turbines ◽  
High Efficiency ◽  
Brayton Cycle ◽  
Test Results ◽  
Solar Fuel ◽  
Hardware Cost ◽  
Power Block

Achieving solar produced electricity at a reasonable price with large utility-size units is a worldwide goal. This can be achieved by high efficiency systems and hardware cost reduction. The ORMAT Brayton cycle solar hybrid gas turbine is a step in this direction. ORMAT took part in several solar projects in which it contributed to the “solarization” of the complete power block. This paper describes the main tasks involved in solarization, and includes experimental test results where helicopter turboshaft gas turbines were used. The paper reviews several solar projects and mainly the SOLGATE project during the years 2001–2003. During 2002–2003 the turbine was operated in Spain, combined with three volumetric receivers. The initial goal of achieving 800°C at the receiver outlet was achieved and is reported on below. The successful tests have encouraged the continuation of work using gas turbines of 10 MW and above, which has already commenced.

The Ruston Tornado: A 6 MW Gas Turbine for Industrial Application

1981 ◽  
Author(s):  
G. R. Wood
Keyword(s):  
Power Generation ◽  
Gas Turbine ◽  
Industrial Application ◽  
Test Results ◽  
Development Programs ◽  
Field Service ◽  
Gas Compression ◽  
Component Development ◽  
Open Cycle ◽  
Power Generation Systems

The paper describes the program to design and develop an efficient 6-MW simple open cycle gas turbine for service in gas compression, mechanical drive applications and power generation systems. The design philosophy of the package, a detailed description of the gas turbine, the component development programs together with their test results are presented. Plans for the introduction of the turbine package into field service in 1981 are outlined.

Preliminary Experimental Study of Precooler in Supercritical CO2 Brayton Cycle

2015 ◽  
Author(s):  
Seungjoon Baik ◽  
Seong Gu Kim ◽  
Seong Jun Bae ◽  
Yoonhan Ahn ◽  
Jekyoung Lee ◽  
...  
Keyword(s):  
Heat Exchanger ◽  
Thermal Efficiency ◽  
High Efficiency ◽  
Power Conversion ◽  
Inlet Temperature ◽  
Brayton Cycle ◽  
Test Results ◽  
Power Cycle ◽  
Compressor Inlet ◽  
House Design

The supercritical carbon dioxide (S-CO2) Brayton power conversion cycle has been receiving worldwide attention because of high thermal efficiency due to relatively low compression work near the critical point (30.98°C, 7.38MPa) of CO2. The S-CO2 Brayton cycle can achieve high efficiency with simple cycle configuration at moderate turbine inlet temperature (450∼650°C) and relatively high density of S-CO2 makes possible to design compact power conversion cycle. In order to achieve compact cycle layout, a highly compact heat exchanger such as printed circuit heat exchanger (PCHE) is widely used. Since, the cycle thermal efficiency is a strong function of the compressor inlet temperature in the S-CO2 power cycle, the research team at KAIST is focusing on the thermal hydraulic performance of the PCHE as a precooler. The investigation was performed by first developing a PCHE in-house design code named KAIST-HXD. This was followed by constructing the designed PCHE and testing it in the KAIST experimental facility, S-CO2PE. The test results of the PCHE were compared to the test results of a shell and tube type heat exchanger as well.

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