Investigation of Multiple Effect Evaporator Design

Evaporator is one of the most energy intensive sections of a number of process industries such as pulp and paper, sugar, desalination, pharmaceuticals, dairy and food processing, etc. Single effect evaporator can be wasteful of energy if the vapor’s heat is not used. This heat can be recovered and re-used by employing multiple-effect evaporators. In this study, investigation of selection of type of evaporator using some parameters is presented for multiple effect evaporator system. Energy and economical equations are given with a case study for multiple effect evaporator system. As result of calculations, it has been found that about 3.51 of overall economy is obtained according to single evaporator.