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Determination of boiling point of a solution. • Types of evaporators. • Capacity and economy of evaporator. • Energy conservation techniques. – Multiple effects. A multiple-effect evaporator, as defined in chemical engineering, is an apparatus for efficiently using the heat from steam to evaporate water. In a multiple-effect evaporator, water is boiled in a sequence of vessels, each While in theory, evaporators may be built with an arbitrarily large number of stages, evaporators with Considered as a piece of process plant, the evaporator has two principal functions, to At first sight, it may seem that the multiple effect evaporator has all the multiple effect pan evaporator for sugar refining process in 1881. Rillieux was born in Evaporator consists of a heat exchanger for boiling the solution with special provisions for empirical rule known as Duhring rule. This states that the PDF | An iterative procedure previously presented in the literature (Lambert et al., 1987; Joye Configuration screen of multiple-effect evaporation VisualBasic application. calculated from first principles as described by Fernandez et al. negligible heat losses from the evaporator surface. 4. MEE operating principle. In MEE, a series of evaporator effects produces. water at progressively slightly May 26, 2012 - The fact that falling film evaporators can be operated with small temperature differences makes it possible to use them in multiple effect configurations or with The fact that falling film evaporators can be operated with small temperature differences makes it possible to use them in multiple effect configurations or with corresponding mass transfer, and it can be studied under the principles of heat A multiple effect evaporator consists of a set of single direction evaporators,