Introduction: The Solar Turbines Mercury 50 Gas-Turbine power generator is a reg

Question

Introduction: The Solar Turbines Mercury 50 Gas-Turbine power generator is a regenerative gas-turbine engine used for small-scale electric power generation. The manufacturer’s brochure for this engine can be found at: http://mysolar.cat.com/cda/files/126873/7/dsm50pg.pdf. In this problem we will use manufacturer specifications to model the system.

Problem #1-Gather system data: Read the manufacturer’s brochure, then locate and record the following system parameters: a) nominal inlet air flow rate (lbm/sec) temperature (°F) and pressure (psia), b) compression ratio (this is actually ‘pressure ratio’, rp), c) nominal electric power output (kW-electric or kWe), d) exhaust temperature (°F), e) after locating system data, convert inlet flow rate, temperature, pressure to kg/s, K, kPa. Also convert exhaust temperature to K.

Solar Turbines A Caterpillar Company 5 Recuperated Gas Turbine Generator Set wer General Specifications MercuryTM 50 Recuperated Gas Turbine NEMA Class F Insulation with F Rise .Turbine Copressor Cleaning 5 - Variable Inlet Guide Vanes and -4160, 6900, 12.470, 13,800V(60 - Portable Cleaning Tank . Turbotronic 4 On-skid Gas Turbine ans - Combination Gas Turbine and - 316L Stainless Steel Piping - Standard Display with Discrete Event Single Torch Ignitor System Proximity Probe Vibration Transducers NEC, CSA Class 1, Group D, Div 2 - English Display Text and Labels - Vibration and Temperature Monitoring French or Simplified Chinese Display Text and Labels Auxiliary and Remote Display - 1 Thrust/Radial: Viscous Damped Split Inner Race Ball Bearing -Water/Oil Lube Oil Cooler Ethernet, Data Highway Plus or - Lube Oil Tank Heater - Simplex Lube Oil Filter - Duplex Lube Oil Filters* - Multi-Unit Applications: Load Shed Control, Import/Export or kW/KVAR 1500 or 1800 rpm (50 or 60 Hz) Vibration Monitoring: Acceleration Air Inlet and Exhaust Systems - InSight Systm Equipment Health 5 Operation and Maintenance Manuals . Factory Testing of Turbine and Package Class F Temperature Rise . Class B Temperature Rise

Explanation / Answer

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Problem1) Data takean from the imges provided above.

a) Inlet air flow rate: 39.2 lbm/sec; Temperature: 59 F; Pressure: 14.7 psia (Sea level)

b) Compression ratio: 9.9:1

c) Nominal electric power output: 4600 kWe

d) Exhaust Temperature: 690 F

e) Inlet air flow rate: 17.9kg/s; Temperature: 288 K; Pressure: 101.325 kPa (Sea level)

Exhaust Temperature: 638 K

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