May 7, 2012 ， Vapor bleeding brings an improvement in the steam economy of a process by 26% but at the added cost $1,50,291 of the five heat exchangers.

May 10, 2012 ， The objective of this report is to develop a model for a five-effect evaporator system. Vapor bleeding is incorporated in the model as a means to reduce the ...

Oct 27, 2014 ， This document describes the development of a model for a five-effect evaporator system used for concentrating sugar solution.

May 10, 2012 ， The objective of this report is to develop a model for a five-effect evaporator system. Vapor bleeding is incorporated in the model as a means to reduce the ...

The thesis involves developing a model and algorithm to design a multiple effect evaporator system to concentrate black liquor.

Oct 22, 2024 ， This paper presents the model of heating and evaporation of sugar juice in juice heater and evaporator.

May 12, 2016 ， The model is used to investigate how variations of surfaces in juice heater and evaporator affect the performance of the system. Index Terms— ...

In the present work a number of configurations and difficulties of MEE system such as condensate flashing, vapor bleeding, steam splitting, preheating of ...

The thesis involves developing a model and algorithm to design a multiple effect evaporator system to concentrate black liquor. The goal is to evaluate the ...

Vapor bleeding may be used in processing industries using multiple-effect evaporatorsto reduces steam consumption and increases steam economyThe effect of vapor ...

People also ask

What are the calculation methods for multiple effect evaporators?

The calculations are done using material balances, heat balances, and the capacity equations q = UAAT for each effect. A convenient way to solve these equations is by trial and error. The basic steps to follow are given as follows for a triple – effect evaporators.

What is the principle of multiple effect evaporator?

In a multiple effect evaporator, water is boiled in a sequence of vessels, each of which is at a lower pressure than the last. As the boiling point of the water decreases with pressure, the vapor produced in one vessel can be used to heat the next vessel. Only the first vessel requires a source of external heat.

How does the multiple effect evaporator under vacuum work?

Functioning of multiple effect evaporators
As the temperature decreases from one effect to the next, the vacuum is increased so that the boiling point is lower and evaporation is maintained. Thus, there is a working pressure and temperature gradient in which both parameters decrease from one effect to the next.

How do you calculate steam economy in multiple effect evaporator?

The steam economy for a MEE is (kg of steam used/kg of water evaporated from all effects). We can enhance steam economy by increasing number of effects. However, we should evaluate the steam economy v/s fixed cost for the MEE.