Chapter 10 Boiling and Condensation10-11Water is boiled at 1 atm pressure and thus at a saturation (or boiling) temperature of Tsat= 100°C in a mechanically polished stainless steel pan whose inner surface temperature is maintained at Ts= 110°C. The rate of heat transfer to the water and the rate of evaporation of water are to be determined.Assumptions1 Steady operating conditions exist. 2 Heat losses from the heater and the boiler are negligible. PropertiesThe properties of water at the saturation temperature of 100°C are (Tables 10-1 and A-9) ρσlvl====957 90600 0589175....kg / mkg / mN/mPr33hfglpl=×⋅=⋅°−2257 100 282 10421733J/kgkg m / sC J/kgCμ.P = 1 atm110°C100°C Water Also, 0.0130 and n= 1.0 for the boiling of water on a mechanically polished stainless steel surface (Table 10-3 ). Note that we expressed the properties in units specified under Eq. 10-2 in connection with their definitions in order to avoid unit manipulations. Csf=HeatingAnalysisThe excess temperature in this case is ΔTTTs=−=−=°satC110 10010which is relatively low
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