Basically steam is kinetic energy .. sun can be useful for make steam on pressure using concentratr dish or fresnel lens.
For make steam you can use also biomass or wood pellet and you can transform heat in steam directly without make syngas..
Anyone with imagination can create new system using hydrogen bond energy after studying and understanding how it works
Probably you can use also HHO or BROWN GAS for produce water trust directly.
As written previously you can find some examples of HBE devices on:
Hydro-electric machine - Lord Armstrong /Faraday
Giffard Steam Injector
Stanley Meyer
Peter Graneau
PDX drive - Pursuit Dynamics
