Gas Turbine Solutions for Greenhouse Gas Emissions Reductions

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• Gas Turbine Solutions for Greenhouse Gas
  Emissions Reductions
• David Schnaars
• Manager, Environmental Strategies

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Solar Turbines Incorporated

• Based in San Diego, California, U.S.A.
• In Business since 1927
• More than 12,000 Gas Turbines Operatingin 93
  Countries
• More than 1.2 Billion Fleet Operating Hours
• Worlds Largest Manufacturer of IndustrialGas
  Turbines (1 to 15 MW Range)
• Subsidiary of Caterpillar Inc. since 1981

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Gas Turbine-Generator Product Line
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Newest Gas Turbine-Generators
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Mercury 50 Performance

• Power 4600 kWe
• Efficiency 38.5
• Heat Rate 9349 kJ/kW-hr
• Exhaust Temperature 374 ºC
• NOx Emissions 5 ppmv with Ultra Lean Premix
  (ULP) Combustion

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Recuperated Cycle
Turbine designed for recuperated cycle

• Improved thermal efficiency
• Lower emissions
• Lower system product costs

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Efficiency Comparison
40
38
36
Thermal Efficiency ()
34
32
Turbine C
Turbine E
Turbine B
Turbine D
Turbine F
30
Turbine A
28
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
8500
Power (kW)
SOURCE DGTWW 2004
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Emissions Comparison
Low Emissions Signature
Mercury 50 _at_ 5 ppm NOx Centaur Simple Cycle Gas
Turbine _at_ 25 ppm NOx Gas Fired Reciprocating
Engine _at_ 0.5 g/bhp-hr
0 0.25 0.5 0 .75 1.0 kg/MW-hr
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Mercury 50 Genset Package

• Compact
• Fast Installation

• Self-Contained
• Low Noise Profile

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Landfill Applications

• High efficiency Low CO2 Emissions

• High efficiency Generated Power Can Displace
  Conventional Generation at Higher CO2 Levels

• Compact
• Fast Installation
• Self-Contained
• Low Noise Profile

• Criteria pollutant Levels Comparable to Flare
  Stacks

• Lower Maintenance Costs

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Taurus 65 Performance
TAURUS 65 Performance

• Power 6300 kW
• Thermal Efficiency 32.9
• Heat Rate 10,947 kJ/kW-hr
• Exhaust Temp 549 0C
• NOx Emissions lt15 ppmv with SoLoNOx Combustion

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Taurus 65 Savings Over Grid
6.1 MW from Combined Cycle Power Plant with Steam
from Conventional Boiler Compared to Taurus 65
CHP Plant
25
9000
8500
23
8000
21
7500
19
7000
CO2 (Tons)
17
6500
6000
15
5500
Fuel flow (GJ/Hr)
13
5000
11
4500
9
4000
4.1
6.3
9.5
12.6
Steam Production (kg/s)
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Taurus 65 for Combined Heat Power (CHP)
Available exhaust heat 42.2 GJ/h
At full power (6300 kW)

• Unfired Steam Flow 4.1 kg/s (82.0 eff.)

• Steam flow fired to 871 oC 7.6 kg/s (86.6 eff.)

• Steam Flow Fired to 1538 oC 16.2 kg/s (90.9
  eff.)

Conclusion The Taurus 65 is an Excellent Engine
for CHP Applications
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Gas Turbine Solutions for Greenhouse Gas
Emissions Reductions
Solar has two gas turbine products particularly
well-suited to GHG reduction
Whether for destruction of and power generation
from landfill gas methane
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