Chapter 10 Boiling and Condensation10-44 Saturated steam at atmospheric pressure thus at a saturation temperature of Tsat= 100°C condenses on a vertical plate which is maintained at 90°C by circulating cooling water through the other side. The rate of heat transfer to the plate and the rate of condensation of steam are to be determined.Assumptions1Steady operating conditions exist.2The plate is isothermal. 3 The condensate flow is wavy-laminar over the entire plate (this assumption will be verified). 4 The density of vapor is much smaller than the density of liquid, ρvl<<. PropertiesThe properties of water at the saturation temperature of 100°C are hfg= 2257×103J/kg and ρv= 0.60 kg/m3. The properties of liquid water at the film temperature of TTTfs=+=()/sat2(100 + 90)/2 = 95°C are (Table A-9), μνμlllllpllk==×⋅==×=⋅°°−−96150297 100309 1042120677336../..kg / mkg / m sm/sC J/kgCW/m C2AnalysisThe modified latent heat of vaporization is hhCfgfgpls*.()=+−×⋅°−°×0682257 1010
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This note was uploaded on 01/24/2012 for the course PHY 4803 taught by Professor Dr.danielarenas during the Fall '10 term at UNF.