Unique ORC vapour expansion engine

The centrepiece of a DeVeTec waste heat power plant is the piston-driven vapour expansion engine (piston expander), which was developed by DeVeTec ourselves, and is manufactured in house.

Piston-driven expansion engines achieve an exceptionally high pressure difference, resulting in a much steeper enthalpy gradient and consequently much more electricity is generated compared to related technologies. Another considerable advantage of the piston-driven expansion engines lies in its impressive partial load capability.

Depending on the amount of waste heat available, the V8 engine works within a range between 0 and 130 kW, theV12 engine between 0 and 200 kW, or the V16 engine between 0 and 270 kW with almost constant efficiency. If other lower temperature heat sources are to be exploited, then the same engine can be operated with other organic fluids without requiring any modifications.

 

Technical details

Engine

     

Unit of measure

     

V8

     

V12

     

V16

Cubic capacity

Litre

18.9

28.3

37.8

Thermal capacity (input)

kW

932 (± 8%)

1398 (± 8%)

1804 (± 8%)

Vibration monitor

NVG

NVG

NVG

Engine oil capacity

Litre

55

60

65

Operating medium

Ethanol

Ethanol

Ethanol

Dimensions

Engine

     

Unit of measure

     

V8

     

V12

     

V16

Length

mm

1137

1475

1887

Width

mm

1310

1310

1310

Height

mm

1415

1415

1415

Weight of frame

kg

195

220

265

Weight of engine

kg

1990

2980

3970

 

The centrepiece of a DeVeTec waste heat power plant is the piston-driven vapour expansion engine (piston expander), which was developed by DeVeTec ourselves, and is manufactured in house.

Piston-driven expansion engines achieve an exceptionally high pressure difference, resulting in a much steeper enthalpy gradient and consequently much more electricity is generated compared to related technologies. Another considerable advantage of the piston-driven expansion engines lies in its impressive partial load capability.

Depending on the amount of waste heat available, the V8 engine works within a range between 0 and 130 kW, theV12 engine between 0 and 200 kW, or the V16 engine between 0 and 270 kW with almost constant efficiency. If other lower temperature heat sources are to be exploited, then the same engine can be operated with other organic fluids without requiring any modifications.

 

Technical details

Engine

     

Unit of measure

     

V8

     

V12

     

V16

Cubic capacity

Litre

18.9

28.3

37.8

Thermal capacity (input)

kW

932 (± 8%)

1398 (± 8%)

1804 (± 8%)

Vibration monitor

NVG

NVG

NVG

Engine oil capacity

Litre

55

60

65

Operating medium

Ethanol

Ethanol

Ethanol

Dimensions

Engine

     

Unit of measure

     

V8

     

V12

     

V16

Length

mm

1137

1475

1887

Width

mm

1310

1310

1310

Height

mm

1415

1415

1415

Weight of frame

kg

195

220

265

Weight of engine

kg

1990

2980

3970