3.1 Oilfree reciprocating steam engine
When realising a modern steam engine the sealing issue is of paramount importance The RAN concept includes piston rings without gap which is expected to give both low blow-by and low frictions losses.

3.2 Compact heat exchangers for steam generator and condenser
The compact heat exchanger approach makes it possibly to realise very compact steam generators far away from the power density of common steam boiler in large power plants. The high power to material weight ratio indicates low capital cost. For air cooled applications as automotive applications it is of paramount importance that the condenser is design in a proper way in order to realise an effective SSSP.