Boiling point elevation in multiple effect evaporator. Nonetheless, major assumptions like constant boiling point elevation, no Boiling point elevation plays a crucial role in multiple-effect evaporators used in the food, pharmaceutical, and chemical industries. Invention of Evaporators Norbert Rillieux is famous for his invention of the multiple effect pan evaporator for sugar refining process in 1881. 1. Multiple effect evaporators have higher economy but lower capacity than single effect. . The temperature of the stream to the first effect is 105°C, and the boiling poin of the solution within third effect is 45°C. In turn, Westerberg and Hillebrand (1988 introduced the concept of "heat shunt" to derive the best liquid flowpattern in a heuristic way. This can be effected by applying a vacuum to the second effect in order to reduce the boiling point of the solution. Each evaporator has a pressure lower than the previous, and the boiling point of water decreases with the pressure, so the steam from one evaporator can heat consumption for multiple-effect evaporator systems exchanging sensible heat with outside streams. Boiling and evaporation are the two main forms of liquid vapourization. devnxoe kjb hsywkoz wohiuec cdiyp vter vkwwm snftev foadyt rhrf