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MICROTURBINE
Presented by-
ASIF QUAMAR
1RE12ME032 1
• Introduction
• Microturbine overview
• Components of Microturbines
• Working Principle
• Types of Microturbines
• Compar...
MicroTurbines are new type of combustion
turbine used for stationary energy generation.
The concept is evolved from auto...
Microturbine producing power, as well as heat
4
• Commercially Available Yes (Limited)
• Size Range 25-500 kW
• Fuel Natural gas, hydrogen,
propane,
diesel
• Efficiency 2...
• Turbo Compressor
• Combustor
• Generator
• Recuperator (Internal Heat Exchanger)
• Turbine
• Power Electronics (Rectifie...
7
How a Microturbine works
8
Turbine rotates the
generator at high RPM which
produces electricity of high
frequency
9
• Unrecuperated Microturbine (Simple cycle)
• Recuperated Microturbine
10
Recuperated Microturbine
11
Unrecuperated
• Compressed air is mixed with
fuel and burned under
constant pressure conditions.
• Efficiency 15%.
Recuper...
• Small number of moving parts
• Compact size
• Lightweight
• Good efficiencies in cogeneration
• Low emission
• Can utili...
14
Micro turbine Cost
Capital Cost $700-$1,100/kW
O&M Cost $0.005-0.016/kW
Maintenance Interval 5,000-8,000 hrs.
Peak shaving and base load power (grid parallel)
Combined heat and power (co-generation)
Distributed power generation
...
Heat loss due to the high surface to volume
ratio
Cooling problems
manufacturing the components (turbine
blades)
Gener...
 Micro turbine can use low grade of fuel very effectively
like waste gases, sour gases etc.
 Thus micro turbine gives ch...
• Bowman power systems
• Capstone Turbine Cooperation
• Elliott energy systems
• Turbec AB
• Ingersoll-Rand Company
18
19
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  1. 1. MICROTURBINE Presented by- ASIF QUAMAR 1RE12ME032 1
  2. 2. • Introduction • Microturbine overview • Components of Microturbines • Working Principle • Types of Microturbines • Comparisions • Advantages • Application • Challenges • Conclusion 2
  3. 3. MicroTurbines are new type of combustion turbine used for stationary energy generation. The concept is evolved from automotive and truck turbochargers, auxiliary power units (APU) for airplanes. Approximately the size of a refrigerator with outputs of 25 kW to 500 kW. They provide not only electricity , but also the thermal energy to provide for all heating and cooling needs 3
  4. 4. Microturbine producing power, as well as heat 4
  5. 5. • Commercially Available Yes (Limited) • Size Range 25-500 kW • Fuel Natural gas, hydrogen, propane, diesel • Efficiency 20-30% (Recuperated) • Environmental Low (<9-50 ppm) NOx • Other Features Cogeneration (50-80°C water) • Commercial Status Small volume production, commercial prototypes now. 5
  6. 6. • Turbo Compressor • Combustor • Generator • Recuperator (Internal Heat Exchanger) • Turbine • Power Electronics (Rectifier & Inverter) 6
  7. 7. 7
  8. 8. How a Microturbine works 8 Turbine rotates the generator at high RPM which produces electricity of high frequency
  9. 9. 9
  10. 10. • Unrecuperated Microturbine (Simple cycle) • Recuperated Microturbine 10
  11. 11. Recuperated Microturbine 11
  12. 12. Unrecuperated • Compressed air is mixed with fuel and burned under constant pressure conditions. • Efficiency 15%. Recuperated • A sheet metal heat exchanger (recuperator) recovers temperature of the air stream supplied to the combustor. • Efficiency 20~30%. 12
  13. 13. • Small number of moving parts • Compact size • Lightweight • Good efficiencies in cogeneration • Low emission • Can utilize waste fuels • Long maintenance interval • No vibration • Less noise than reciprocating engines 13
  14. 14. 14 Micro turbine Cost Capital Cost $700-$1,100/kW O&M Cost $0.005-0.016/kW Maintenance Interval 5,000-8,000 hrs.
  15. 15. Peak shaving and base load power (grid parallel) Combined heat and power (co-generation) Distributed power generation Stand-alone power Backup/standby power Primary power with grid as backup  Micro grid  Resource recovery Transportation applications
  16. 16. Heat loss due to the high surface to volume ratio Cooling problems manufacturing the components (turbine blades) Generation of thermal stresses Design of air bearings 16
  17. 17.  Micro turbine can use low grade of fuel very effectively like waste gases, sour gases etc.  Thus micro turbine gives chance of low fuel cost and less emission.  The dimensions of micro turbine comparatively small by which it can be installed at field where power is consumed.  Micro turbine is also effective in CHP operation.  In India the micro turbine is quite useful.  The power shortage effect can be solved using micro turbine, using fuels like biogas, etc. 17
  18. 18. • Bowman power systems • Capstone Turbine Cooperation • Elliott energy systems • Turbec AB • Ingersoll-Rand Company 18
  19. 19. 19

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