Calculate the average heat transfer coefficient for film-type condensation of water at pressures of 10 kPa and 101 kPa for(a) A vertical surface 1.5 m high(b) The outside surface of a 1.5-cm-OD vertical tube 1.5 m long(c) The outside surface of a 1.6-cm-OD horizontal tube 1.5 m long and(d) A 10-tube vertical bank of 1.6-cm-OD horizontal tubes 1.5 m long. In all cases, assume that the vapor velocity is negligible and that the surface temperatures are constant at 11?C below saturation temperature.GIVENFilm condensation of waterASSUMPTIONSSteady stateVapor velocity is negligibleSurface temperatures (Ts) are constant at 11?C below saturation temperatureFilm thickness is much smaller than the pipe diameterLaminar condensateflow

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D= 1.6 cm D= 1.6 cm A = 1.5 cm + L-1.5 m 10 (a) (b) (d) (c)