Elliott Microturbines

Elliott Energy Systems, Inc. is a premier manufacturer of Microturbines for use in distributed generation, combined heat and power (CHP), and offshore applications. Our 100 kW Microturbine has a robust and efficient design, the product of over ten years of research, development and testing. High availability and low maintenance costs make Microturbines the right choice for medium to high capacity co-generation projects.

 

Specifications
TA100
Electric Power Output
100 kW
Natural Gas Fuel Input @ 78 psi
1,235,000 BTUs/hr
Electric Efficiency
29.0%
Heat Rate
12,355 BTUs/kWh
Exhaust Energy
587,000 BTUs
Exhaust Temperature
180F/560F w/HRU Bypass
NOTE: Data in table is approximate; see manf info for details

Emissions

NOx 24 ppm @15% O2
CO 25 ppm @15% O2

Operation Cycle

The TA100 starts with two 12-volt batteries (in series) that provide the 24 volts used by the system. A 24 volt DC signal is supplied to a rectifier circuit which converts the voltage to AC ~ 500 volts. The AC signal is used to excite the stator and cause the permanent magnet alternator, located inside the stator, to rotate. The alternator rotor is mounted on a common engine rotor shaft therefore, when the alternator rotates so does the engine rotor. The engine rotor increases in speed up to 20,000 RPM (electrical acceleration). The gas turbine draws air into the, single stage compressor section. The air is compressed and directed through a diffuser into the combustion section where fuel is added and ignited. The exhaust is directed through a nozzle and directed to the turbine. As more fuel is added the turbine rotor spins faster (mechanical acceleration). The fuel flow is stabilized when the engine reaches operating speed. The alternator rotor spins inside the stator. The stator generates an AC output signal. The signal is ~600 volts with a frequency of 2,267 Hz. The signal is converted from AC to DC then back to AC, 400 /480 volts 50/60 Hz (Selectable). As electrical load is applied more fuel is added to the combustor to maintain a constant speed

  1. Engine inlet air to Compressor
  2. Air is compressed by Impeller.
  3. Compressed air is sent to Recuperator.
  4. Duct directs compressed air into Recuperator
  5. Recuperator heats the compressed air using exhaust energy.
  6. Compressed and now heated air is directed towards Combustion Chamber
  7. Heated Air is mixed in the Combustion Chamber with natural gas and ignited.
  8. Exhaust from combustion process is directed through turbine wheel causing alternator to rotate, which provides an output of 105 kW.
  9. Exhaust is passed to the Recuperator to heat the Compressor delivery air.
  10. Exhaust exits the Recuperator.

PDF Literature

TA100 CHP (2005 EESI #51, Rev1)

 

More Information

Elliott Energy Systems, Inc
2901 S.E. Monroe Street
Stuart, Florida 34997
Tel: 772-219-9449
Fax: 772-219-9448

Go to the Elliott web site at www.elliottmicroturbines.com

 

 

Source: Elliott Microturbines John D. Holbrook Senior Marketing Coordinator Elliott Energy Systems, Inc.1/2006