  We study the role of surface topology, surface chemistry, and wall superheat
temperature on the onset of boiling, bubble nucleation and growth, and the
possible formation of an insulating vapour film by means of large-scale MD
simulations. In the numerical experiments, we control the system pressure by
imposing a constant force on a moving piston. The simulations reveal that the
presence of a nanostructure triggers the bubble formation, determines the
nucleation site and facilitates the energy transfer from the hot substrate to
the water. The surface chemistry, on the other hand, governs the shape of the
formed bubble. A hydrophilic surface chemistry accelerates the bubble
nucleation, however, decelerates the bubble expansion, thus postponing the
formation of the film of vapour. Therefore, a hydrophilic surface provides
better energy transfer from the hot wall to the water. By analysing the system
energy, we show that irrespective of wall topology and chemistry, there is a
wall temperature for which the amount of transferred energy is maximum.
