waste-heat-recovery-systems
 
 

compact engines.

Teaser compact engines
Teaser_ORC_truck_with_gian_2019_IE_EN.pdf (614.97KB)
Teaser compact engines
Teaser_ORC_truck_with_gian_2019_IE_EN.pdf (614.97KB)


Steam cycle processes (CRC/ORC) are already the
state of the art for stationary waste heat utilisations.
In mobile application, there are various approaches
which have not made the leap into series application
yet. A technology transfer of tested stationary plant
technology combined with previous knowledge of
mobile technology forms the solution for fast market
maturity and high CO2 saving for mobile applications.
Robust and durable piston engines stand out for
their high efficiency, high flexibility in the application
area as well as very good integrability into existing
infrastructures.

Variable-speed, lubrication-free piston engines can be integrated directly into the drive train or also electrically as a super-hybrid version. Precise, clear engine timings with high cross sections and expansion ratios up to 40:1 at max. fluid temperatures of 200 - 300°C can be created thanks to camshaft-free gas exchange control. With wet releasing ORC medium ethanol, a thermal efficiency of over 20% can be achieved at up to 40 bar at a single stage without a recuperator, and turbines, scroll and screw machines are therefore markedly superior. Thanks to the free orientation, the engines can also be placed horizontally in the frame. Since no separation is required between the ORC and the lubricating medium, seal systems are saved and compact dimensions and low weight are achieved.


ethanol steam piston engines:

As an interdisciplinary team, we rely on 17 years’ experience in the field of research and development of WHR systems, of which 10 years’ exclusive development for VW’s Group research in the passenger car field. As pioneers with ethanol (since 2004) as an ORC medium and with over 25,000 operating hours of experience in ORC industrial plants, we have exclusive practical knowledge. The key components have been developed, tested and operated by us. The most important one, the steam engine, has also been implemented in the versions with a crank or wobble plate drive and are used today in the mobile as well as stationary area. We have particular know-how in material selection, tribology of lubrication-free systems, of gas exchange control and of plant and control technology.


use:

Fast and widespread use in trucks significantly reduces energy consumption up to 10% and therefore contributes substantially to the adherence to the prescribed CO 2 fleet consumption in the next few years. This technology further provides crucial consumption reduction also for electric hybridisation or for the use of biogenic fuels. Along with the market advantage, sanctions for not adhering to the fleet consumption can be avoided. The user will already benefit from the permanent reduction of operating costs in the first few years.