Falling film boiling and pool boiling on plain circular tubes: Influence of surface roughness, surface material and saturation temperature on heat transfer and dryout

•Falling film and pool boiling heat transfer increase as surface roughness increases.•Falling film and pool boiling heat transfer increase as material effusivity increases.•Falling film enhancement factor increases as surface roughness increases.•Material effusivity has no discernible influence on f...

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