This is a small low cost miniature power plant designed for educational purpose.

A hand feed pump supplies water from a feed tank to a small gas fired boiler. Steam is throttled to a single cylinder, double acting reciprocating engine. A small DC generator is connected to the engine by a belt and electrical load is applied. Exhaust from the steam engine is condensed in a water cooled condenser. Condensate is collected and measured for steam rate.

Instruments are provided for monitoring and controlling the plant operation and performance as well as for safety.

Instruction manual is also included.

  • Fuel consumption
  • Efficiencies for boiler, engine and overall plant.
  • Condenser heat transfer coefficient.
  • Heat balance and energy utilization.
  • Ranking cycle efficiency.
 - Type Fire tube vertical boiler
 - Equivalent evaporation Approx. 7 kg/h steam
 - Maximum working pressure 5 kg/cm2 (0.49 MPa)
Boiler accessories Steam separator, manual feed pump, safety valve, level gauge and low level alarm
Fuel Liquefied Petroleum Gas (LPG)
Feed water tank Stainless steel with level gauge
Feed pump Hand operated
Steam engine
 - Type Single cylinder, double acting
 - Plant output at maximum working pressure
  • Mechanical, approximately 7 W
  • Electrical, approximately 2 W
Power output measurement Mechanical brake dynamometer
Electrical power system DC generator with resistive load
Condenser Shell and tube type
Measuring instruments:
 - Pressure gauge Boiler steam outlet
 - Flow meters 2 ea.
 - Spring balance and weights for dynamometer torque
 - Graduated cylinder and stop watch for condensate measurement
 - Voltage and current digital display.
Accessory Boiler cleaning kits
Power supply 220 V, 1 Ph, 50Hz. Other power supply is available on request.
Part No. Part Name
TH 100-021 Digital flue gas analyzer for O2 and CO contents
TH 101-031 Pressure digital display
TH 120-003A Torque digital display instead of spring balance and weight
TH 120-005EBA Mini Electric Boiler instead of LPG boiler and LPG system. By using electric boiler.
TH 120-010A Electric feed pump
TH 120-014

Condenser cooling unit

The unit is to cool condenser cooling water and make this equipment to be self-contained instead of using outside water supply. It is completed with transfer pump.

TH 120-032 Fuel weight totalizer for fuel flow rate measurement
TH 120-035 Cooling water flow sensor
TH 120-037 Condensate weight totalizer for steam rate measurement
TH 120-050

Computer Interface

Sensors with computer interface unit for key data acquisition instead of analog data measuring instruments.

Other optional equipment please contact manufacturer (


Net (unassembled) Shipping Dimensions WxLxH 76 x 90 x 155 cm.
Net Weight Approx. 90 kg.