Cyc1e, steaminjection, 77-81Cyc1icfatigue, 416-17
D-CS (Distributed Contro1 Systems),634,653, 654
Dampedsystem, 182-6critica11y, 184-5critica11y dampedsystem, 184-5overdampedsystem, 184underdampedsystem, 185-6
Dampingfactor,184, 585
Dataretrieva1, 689taping, 568-9trending, 674-7
Def1ectionang1e, See Air turning ang1eDegrees offreedom, 179Degree ofreaction,294,325, 340 Deviation
ang1e, 303
ru1e, 303-8
Diagnostics,681, 687-9combustors, 682-4compressors, 683-4mechanica1prob1ems, 687-89turbines, 684-5
Diagnostic system(s)aerotherma1 dataco11ection, 661components andfunctions, 658-9datainputs, 659dataretrieva1, 689instrumentation, 659-60requirementsof, 647-8vibration instrumentation, 668-70
DiagramsCampbe11, 211-16impu1se, 343-4symmetrica1, 344zero exitswir1, 343
Diffusers, 243-6Diffusionfactor, 300Dimensiona1 ana1ysis, 125-30F1owCoefficient, 127
PressureCoefficient, 127
Reyno1ds.umber, 127
SpecificSpeed, 126
.obbeIndex, 383
Discrete Fourier transform
See Fourier transformationDisp1acementtransducers, 565-6D.E (Dry .owEmissions),394,
397,398,400, 402 D.. (Dry .ow .Ox), 394DOE (Department ofEnergy), 44Dragcoefficient, 281Dry-frictionwhir1, 207-8Dry gassea1s, 515-19Dry 1ow .Oxcombustor, 397-403DS (directiona1 so1idification),49, 424Ducti1ity andfracture, 415-16Dynamic pressuretransducers, 567-8
Economic Comparisons, 8EconomicCyc1es, 6-9Economics,fue1, 41-2, 456-8Economic, primemovers, 3-5Efficiencies, 122-5
adiabaticefficiency, 122-4
po1ytropicefficiency, 124-5
Efficiencyadiabatic, 122-4po1ytropic, 124-5
E1ectrictracing, 462 E1ectromechanica1 systems and
ana1ogies, 198-211forces acting on rotor bearingsystem, 200-1rotor bearing systeminstabi1ities, 201-4se1f-excitedinstabi1ities, 204-11
E1ementary airfoi1theory, 280-1attack, ang1eof, 280-2componentsof, 281
E1evatedtanks, 463E1gi 1eakageformu1ae, 498Enc1osures, 147Energyequation, 121-2Environmenta1effects, 43-4 EPA (Environmenta1 Protection
Agency),84, 393 EPRI (E1ectric Power ResearchInstitute), 646
Equationsaerotherma1, 117-22continuityequation, 117energyequation, 121-2momentumequation, 118-21 state 113-14
Equipment, maximization of efficiencyand effectiveness, 725-7 Eu1erturbineequation, 119-21,227,230,293,323, 348work distribution, 232Eu1erianmotion, 113
identities, 561Evaporative regenerativecyc1e, 81-4Expandermodu1e, 705
Facesea1s, 501-7
Fai1ure diagnostics, 681-7combustorana1ysis, 683-4compressorana1ysis, 682turbineana1ysis, 684-5turbineefficiency, 685-7
Fast Fourier transform See Fourier transformation
Fatiguecyc1ic, 416-17therma1, 417-18
FFT (fast Fouriertransform),559,670, 671F1exib1eshaft, 192-5F1owcoefficient, 127
F1uid-fi1m 1ubrication See Bearings
F1uids See AerothermodynamicsFixed rooftanks, 463-4Fixed sea1rings, 501F1exib1esupports, 193-5F1oating rooftanks, 464F1oating sea1rings, 501F1ow straighteners, 694-700
f1ow measurement, 699-700
pressure measurement, 695-7
temperature measurement, 698
F1utter, 582FOD (foreign objectdamage), 432Forcedvibrations, 186-9Foundations, 765Fou1ingindicators, 748-9Forgings and nondestructivetesting,
427-9Fourier transformation, 559
Coo1ey-Tukeymethod, 564Fracture, andducti1ity, 415-16Frame type heavy-duty gasturbines, 16-18Freesystem, undamped, 181-2Frequency,natura1, 189Frequencydomain, 559Fue1 economics, 456-8Fue1properties, 443-7Fue1 specifications, 440-3Fue1treatment, 447-52Fue1type, 40-2Fue1s, 436-65
ashcontent, 441
avai1abi1ity, 440
carbonresidue,441, 444
c1ean1iness, 440-1, 454-5
c1eaning of turbine components, 454-6
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