... 13 04 2011 07 12 2011 07 12 2011 bars bending blades cantilevers eigenvalues and eigenfunctions finite element analysis rotors shafts turbines turbogenerators variable structure systems vibrations Due to the increasing sizes of low-pressure-stage long blades...

... 16 07 2010 02 05 2011 02 05 2011 turbines turbogenerators With the ever growing need for portable and distributed power sources, small-scale devices ranging from a few watts to several hundred watts are currently being studied by various research groups. Most applications...

... recovery magnetic bearings permanent magnet generators power electronics rotors turbogenerators waste heat active magnetic bearings waste heat recovery waste heat generator The expander/generator (referred to below as the IPM or IPM125) is the key component of a 125 kW (net) waste...

... of the development program. 13 04 2010 01 06 2010 22 11 2010 22 11 2010 air pollution control carbon compounds cogeneration distributed power generation turbogenerators During the last few decades, several attempts have been made to develop microturbines with efficiency levels...

...Francesco Trasino; Michele Bozzolo; Loredana Magistri; Aristide F. Massardo This paper is focused on the performance of the 1 MW plant designed and developed by Rolls-Royce Fuel Cell Systems Limited. The system consists of a two stage turbogenerator coupled with pressure vessels containing the fuel...

...Marino Sanchez-Parra; Cristina Verde; Dionisio A. Suarez This paper presents a fault tolerant control switching scheme with embedded fault detection and isolation system for the gas turbine of a combined cycle power plant. Mechanical faults of the turbogenerator are considered as case study...

... of accuracy, the model has to be updated to fit experimental results, and standard modeling methods have to be improved. In this paper, the updating of the torsional model of a steam turbogenerator is presented. In order to fit the eigenfrequencies calculated using the standard model and the natural...

...John Harinck; Teemu Turunen-Saaresti; Piero Colonna; Stefano Rebay; Jos van Buijtenen There is a growing interest in organic Rankine cycle (ORC) turbogenerators because they are suitable as sustainable energy converters. ORC turbogenerators can efficiently utilize external heat sources at low...

... of the turbine section. 14 12 2007 11 11 2008 09 04 2009 blades discs (structures) failure (mechanical) failure analysis fatigue cracks finite element analysis gas turbine power stations mechanical testing nozzles stress analysis surface cracks turbogenerators vibrations...

...Da-Ren Yu; Wei Wang; Zhi-Qiang Zhang; Qing-Hua Hu; Xiao-Min Zhao This paper presents a novel method of multiscale association for analyzing a turbogenerator accident having strange behaviors and serious consequence. Wave index (WI) and credibility of sensor fault are proposed based on multiscale...

...Lothar Eckert; Joachim Schmied A hydrogen-cooled turbogenerator operating at 3600 rpm showed the phenomenon of spiral vibration with a forward rotating unbalance vector. The relative shaft vibration measured at the non-driven end-bearing was close to the trip level. Spiral vibration is observed...

... military vehicles gas turbines turbogenerators ignition starting torque clutches testing installation Since the mid-1970s, the U.S. Navy has used five versions of Ship Service Gas Turbine Generators (SSGTG) onboard each of its destroyers and cruisers to provide for all shipboard electrical...

... petroleum internal combustion engines compressors turbines turbogenerators machine testing cooling thermodynamics Whether they operate on the two-stroke or four-stroke thermodynamic cycle, whether they are naturally aspirated or turbocharged and intercooled, whether they are fueled...

...Peter Y. P. Chen, Visiting Research Fellow; Ningsheng Feng, Lecturer; Eric J. Hahn, Visiting Professor; Wenlong Hu, Research Student Present day turbogenerator installations are statically indeterminate rotor-bearing-foundation systems utilizing nonlinear hydrodynamic bearings. For optimal...

... and Exhibition, Atlanta, GA, June 16–19, 2003, Paper No. 2003-GT-38870. Manuscript received by IGTI, October 2002, final revision, March 2003. Associate Editor: H. R. Simmons. 16 June 2003 01 October 2002 01 March 2003 15 04 2005 magnetic bearings turbogenerators power...

.... Arakere. 09 October 2002 20 November 2003 09 02 2005 acoustic resonance turbogenerators eigenvalues and eigenfunctions rotors High cost pressures and cost savings in our economy have created demands to maximize the efficiency of high performance turbomachinery. However...

... September 23, 2003. Editor: L. S. Langston. 10 July 2003 23 September 2003 09 02 2005 gas turbine power stations turbogenerators irreversible thermodynamics power system analysis computing prediction theory cooling compressors aerodynamics The single most important...

... within the cycle have to be optimised regarding heat transfer, pressure loss, material cooling, in the many connections that have been invented and are in use today. optimisation design engineering gas turbines combustion air pollution control turbogenerators large-scale systems power...

... turbogenerators optimisation pipelines filtration gas industry combustion Saudi Arabia’s main source of electrical power is provided by combustion gas turbine generators (CGTGs). Most of the CGTGs operating in the Eastern and Central Regions of Saudi Arabia are currently fueled by natural gas...

... December 2003. Associate Editor: M. Mignolet. 01 October 2002 01 December 2003 11 08 2004 Pareto optimisation genetic algorithms turbogenerators rotors machine bearings The objective functions involved in the detailed rotor system design are expected to have complex...