Engine

Our 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