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TECHNICAL PAPERS: Gas Turbines: Cycle Innovations

Transient Analysis of and Control System for Advanced Cycles Based on Micro Gas Turbine Technology

[+] Author and Article Information
Alberto Traverso, Federico Calzolari, Aristide Massardo

TPG-DiMSET, Università di Genova, Genova, Italy

J. Eng. Gas Turbines Power 127(2), 340-347 (Apr 15, 2005) (8 pages) doi:10.1115/1.1839918 History: Received October 01, 2002; Revised March 01, 2003; Online April 15, 2005
Copyright © 2005 by ASME
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References

Rodgers, C., “Microturbine Cycle Options,” ASME paper No. 2001-GT-0552.
Rowen,  W. I., 1992, “Simplified Mathematical Representation of Single Shaft Gas Turbines in Mechanical Drive Service,” Turbomachinery Inter.,33, pp. 26–32.
Cerelli, E., “Theoretical Modelling and Experimental Measurements of Microturbine Cycles for Distributed Trigeneration,” 2002, Master thesis, TPG-DiMSET, Università di Genova, Italy.
Traverso, A., Magistri, L., Scarpellini, R., and Massardo, A. F., “Demonstration Plant and Expected Performance of An Externally Fired Micro Gas Turbine for Distributed Power Generation,” ASME Paper No. 2003-GT-38268.
Agazzani,  A., and Massardo,  A., 1995, “Advanced Solar Dynamic Space Power Systems, Part I: Efficiency and Surface Optimization,” ASME Trans. J. Solar Energy Eng.,117, pp. 265–273.
Agazzani,  A., and Massardo,  A., 1995, “Advanced Solar Dynamic Space Power Systems; Part II: Detailed Design and Specific Parameters Optimization,” ASME Trans. J. Solar Energy Eng.,117, pp. 273–281.
Massardo,  A. F., Tagliafico,  L. A., Fossa,  M., and Agazzani,  A., 1997, “Solar Space Power System Optimization With Ultralight Radiator,” J. Propul. Power, 13, pp. 560–564.
Parente, J., Traverso, A., and Massardo, A. F., “Micro Humid Air Cycle. Part A: Thermodynamic and Technical Aspects,” ASME Paper 2003-GT-38326.
Magistri, L., Bozzo, R., Costamagna, P., and Massardo, A. F., “Simplified Versus Detailed SOFC Reactor Models and Influence on the Simulation of the Design Point Performance of Hybrid Systems,” ASME Paper 2002-GT-30653.
Schobeiri,  M. T., Attia,  M., and Lippe,  C., 1994, “GETRAN: A Generic, Modularly Structured Computer Code for Simulation of Dynamic Behavior of Aero- and Power Generation Gas Turbine Engines,” J. Eng. Gas Turbines Power, 116, pp. 483–494.
Crosa, G., Fantini, L., Ferrari, G., Pizzimenti, L., and Trucco, A., “Steady State and Dynamic Behavior of an Indirect Fired Gas Turbine Plant,” ASME paper 98-GT-167.
Pilidis, P., and Maccallum, N. R. L., “A General Program for the Prediction of the Transient Performance of Gas Turbines,” 1985, ASME Paper 85-GT-265.
Calzolari, F., “Transient Behavior and Control System for Advanced Cycles Based on Micro Gas Turbine Technology,” 2002, Master thesis, TPG-DiMSET, Università di Genova, Italy.
“Externally Fired Micro Gas Turbine for Distributed Power Generation,” 2002, ANSALDO Ricerche, Research Contract No. 9/2000, Final Report.
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Figures

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Scheme of the fuel valve
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Simple and recuperated cycle response to a load step decrease of 25%: rotational speed and fractional opening of fuel valve versus time
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EFmGT pilot plant: main regulation valves
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CBC: off-design performance with different parameter variations
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EFmGT: shaft response to different load step increases (starting from 50 kW)
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EFmGT: response to a load step decrease (Case II, Table 2)
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EFmGT: bypass valve FO response to a load step increase (Case I, Table 2): two different gains (K) of the fuel valve PI have been considered
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EFmGT: Rec II response to a load step increase (Case I, Table 2). Exhaust and recuperator metallic matrix temperatures are recorded against time.
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EFmGT: bypass valve FO response to a load step decrease (Case II, Table 2)
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EFmGT: Rec II response to a load step decrease (Case II, Table 2). Exhaust and recuperator metallic matrix temperatures are recorded against time.
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EFmGT: bypass valve and shaft response to a load ramp (+0.01 kW/s) from 40 kW to 43 kW (PI gain K=0.005, unstable)
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EFmGT: bypass valve and shaft response to a load ramp (+0.01 kW/s), from 40 kW (PI gain K=0.005, unstable)
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CBC: sample variation of sink temperature during the orbit (Tsk)
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CBC: percentage variation of the main parameters during the orbit
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CBC: mass exchange between the cycle and the mass accumulator during the orbit
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CBC: instantaneous heat flow rate (kW) and integral heat (kJ) supplied by the receiver during the orbit
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CBC: percentage variation of the main parameters during the orbit (accident: delayed motion of the control valves)

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