For which one of the following situations would Kendall’s tau be appropriate? a) The Mohs scale rates the hardness of minerals. If one mineral can scratch another, it is judged….
Calculate the surface area of each effect if each effect has the same area, and the steam rate.
Evaporation of a Sugar Solution in a Multiple-Effect Evaporator. A triple-effect evaporator with forward feed is evaporating a sugar solution with negligible boiling-point rise (less than 1.0 K, which will be neglected) and containing 5 wt % solids to 25% solids. Saturated steam at 205 kPa abs is being used. The pressure in the vapor space of the third effect is 13.65 kPa. The feed rate is 22 680 kg/h and the temperature 299.9 K. The liquid heat capacity is cp = 4.19 – 2.35x, where cp is in kJ/kg · K and x in wt fraction (K1). The heat-transfer coefficients are U1 = 3123, U2 = 1987, and U3 = 1136 W/m2 · K. Calculate the surface area of each effect if each effect has the same area, and the steam rate.