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Multi Effect Evaporators - LinkedIn SlideShare

Multi Effect Evaporators - LinkedIn SlideShare

Nov 28, 2017 · Multi Effect Evaporator Multiple Effect Evaporation remains one of the popular methods used for the concentration of aqueous solutions. The chief factor influencing the economy of an evaporator system is the number of effects. By increasing the number of effects we can increase the economy of an evaporator system. The first effect of a multiple .

Evaporation [on2377rm7pl0]

Evaporation [on2377rm7pl0]

CHEMICAL ENGINEERING SERIES 29 EVAPORATION PROBLEM # 08: A 10% wt NaOH at 80 °F is to be concentrated in a single effect evaporator to 40% wt. Steam is supplied at 20 psig and the vacuum pressure of the barometric condenser is 26 in Hg. 100 gpm of water is fed to the condenser and the water leaving the condenser (including the condensate) is .

Dedert Corporation :: Energy Economy

Dedert Corporation :: Energy Economy

Dedert design philosophy treats every evaporator system as a totally new project, custom engineered to serve a unique set of circumstances. Systems have been designed to recycle water, separate and reduce waste, reclaim by-products, enhance process or product quality, increase throughput and improve productivity, while reducing cost.

CHAPTER 21: EVAPORATION – PRINCIPLES, TYPES OF .

CHAPTER 21: EVAPORATION – PRINCIPLES, TYPES OF .

evaporator. Hence, the steam economy, which is kg vapor evaporated/kg steam used, is increased. This also approximately holds for a number of effects over three. However, this increased steam economy of a multipleeffect evaporator is gainedat the expense of the - original first cost of these evaporators. Fig 2.

The economy of a multiple effect evaporator depends on .

The economy of a multiple effect evaporator depends on .

The economy of a multiple-effect evaporator depends on heat-balance onsiderations and not on the rate of heat transfer. The capacity of a double- effect evaporator concentrating a solution with a boiling-point elevation is generally less than half the capacity of two single effects, each operating with the same overall temperature drop.

The economy of a multiple effect evaporator depends on .

The economy of a multiple effect evaporator depends on .

The economy of a multiple-effect evaporator depends on heat-balance onsiderations and not on the rate of heat transfer. The capacity of a double- effect evaporator concentrating a solution with a boiling-point elevation is generally less than half the capacity of two single effects, each operating with the same overall temperature drop.

RMP Lecture Notes

RMP Lecture Notes

The evaporator is heated by saturated steam condensing at 120°C. It has been determined that for every 1000 kg of water evaporated, a 1 μm thick uniform layer of sediment is formed on the heat exchange area. The thermal The evaporation capacity of the evaporator, when conductivity of the sediment is 0.2 W m 1 K 1 . clean, is 4 kg s 1.

steam economy of multiple effect evaporator

steam economy of multiple effect evaporator

Nov 28, 2017· Multi Effect Evaporator Multiple Effect Evaporation remains one of the popular methods used for the concentration of aqueous solutions. The chief factor influencing the economy of an evaporator system is the number of effects. By increasing the number of effects we can increase the economy of an evaporator system.

Introduction to Black Liquor Evaporators Training Video .

Introduction to Black Liquor Evaporators Training Video .

The Black Liquor Evaporators - Introduction course begins with an overview of the kraft chemical pulping process and the role evaporators play in the chemical recovery process. It then details the flows of steam, vapor, and black liquor in a typical multiple effect evaporator setup, and concludes with a discussion on "steam economy."

Evaporation Technology, Principles, Applications .

Evaporation Technology, Principles, Applications .

It is shown how evaporation can be used for effluent treatment instead of rectification which most often is more expensive. Thermal desalination of seawater, as one of the important applications of evaporator technology, is presented with its many aspects as weU as the layout of equipment and accessories of evaporator plants.

Multiple Effect Evaporators

Multiple Effect Evaporators

The RDG evaporator design, based on patented technologies, is ideal for multiple-effect systems, as each effect can be optimized for both vapor and fluid functional conditions to achieve optimum evaporation. This ability, together with our complete system design, allows us to lead the market for efficiency and reliability.

Evaporation - Lenntech

Evaporation - Lenntech

For single effect evaporator, the steam economy is ca. 0.8 (<1), which translates to 0.8 tons of steam needed to evaporate 1 ton of water. So as to decrease the evaporator steam economy, the multiple-effect design uses the exhaust vapors from the product to heat the downstream evaporation effect and reduce the steam consumption.

Introduction to Black Liquor Evaporators Training Video .

Introduction to Black Liquor Evaporators Training Video .

The Black Liquor Evaporators - Introduction course begins with an overview of the kraft chemical pulping process and the role evaporators play in the chemical recovery process. It then details the flows of steam, vapor, and black liquor in a typical multiple effect evaporator setup, and concludes with a discussion on "steam economy."

Zero Liquid Discharge (ZLD) - Apex Ecotech Pvt. Ltd.

Zero Liquid Discharge (ZLD) - Apex Ecotech Pvt. Ltd.

1. HYBRID FALLING FILM & FORCED CIRCULATION EVAPORATORS (MULTI EFFECT EVAPORATOR - MEE) a) Cost effective solution towards low salinity rejects having a feed salinity between 5 to 10%. b) Best steam economy. c) Low power costs due to first stages of falling film evaporation. d) Flexibility in selection of material of construction.

Introduction to Black Liquor Evaporators Training Video .

Introduction to Black Liquor Evaporators Training Video .

The Black Liquor Evaporators - Introduction course begins with an overview of the kraft chemical pulping process and the role evaporators play in the chemical recovery process. It then details the flows of steam, vapor, and black liquor in a typical multiple effect evaporator setup, and concludes with a discussion on "steam economy."

Evaporation in food industry - Efficiency Finder

Evaporation in food industry - Efficiency Finder

Back to EFFICIENCY FINDER. Back to EFFICENCY FINDER OF FOOD INDUSTRY. 1. OBJECTIVE. Evaporation is the partial removal of water from liquid food by boiling. For instance, liquid products can be concentrated from 5% dry solids to 72%, or even higher, depending on .

Evaporation - A Wastewater Treatment Alternative | WWD

Evaporation - A Wastewater Treatment Alternative | WWD

Dec 28, 2000 · Evaporator economy can be increased by increasing the number of effects. A multiple effect system (Fig 2) uses the vapor from the first effect as the steam source for each subsequent effect. As the temperature decreases in each succeeding stage, evaporation continues because the pressure and boiling point also are reduced.

Evaporators | Dairy Processing Handbook

Evaporators | Dairy Processing Handbook

A two-effect falling-film evaporator with thermocompressor requires about 0.32 kg of steam to evaporate 1 kg of water, and a five-effect evaporator requires 0.09 kg of steam. Without the thermocompressor, the specific steam consumption would be approx. 0.55 and 0.2 kg per kg of water evaporation respectively.

Multiple Effect & Process Evaporation Equipment - Vapor .

Multiple Effect & Process Evaporation Equipment - Vapor .

TVR can be used on a single effect evaporator to increase the steam economy or in conjunction with a multiple effect design to further enhance the system's steam economy. TVR uses high-pressure steam in conjunction with process vapor to drive the evaporation process.

economy of multiple effect evaporator solved problems

economy of multiple effect evaporator solved problems

The economy of an evaporator is defined as the ratio of the evaporation rate out of the evaporator to the steam rate into the steam chest or calandria. 1 For multiple effect evaporation, an individual economy can be calculated based on the steam and vapor flow rates for each effect or an overall economy can be computed, which is the ratio of .

Evaporation - Lenntech

Evaporation - Lenntech

For single effect evaporator, the steam economy is ca. 0.8 (<1), which translates to 0.8 tons of steam needed to evaporate 1 ton of water. So as to decrease the evaporator steam economy, the multiple-effect design uses the exhaust vapors from the product to heat the downstream evaporation effect and reduce the steam consumption.

Vacuum evaporation

Vacuum evaporation

Vacuum Evaporation. A very efficient method of vacuum evaporation is that obtained . In these greater economy of fuel for heating is secured. The apparatus consists usually of three or four simple vacuum pans, so joined together that the steam from the boiling liquid in the first pan is made to pass through the coils and jacket of the second .

Unit Operations in Food Processing - R. L. Earle

Unit Operations in Food Processing - R. L. Earle

The pressure in the evaporator is 80 kPa absolute, and in the steam jacket 100 kPa absolute. Take the tube diameter as 5 cm. Estimate the rate of evaporation in the first evaporator. Assume the juice enters at 18°C and the overall heat transfer coefficient is 440 J m-2 s-1. °C-1. [ 72.5 kgh-1]

Evaporation - Nc State University

Evaporation - Nc State University

Evaporation Outline •Difference between evaporation and boiling •Purposes of evaporation •Boiling point and factors that affect it •Determination of boiling point of a solution •Types of evaporators •Capacity and economy of evaporator •Energy conservation techniques –Multiple effects –Vapor recompression (Thermal or mechanical)

What is evaporation and what are the types of evaporation .

What is evaporation and what are the types of evaporation .

Mar 18, 2017 · 4) Economy: Economy of evaporator may be defined as the amount of steam used and is expressed in pounds of vapors produced per pound of steam supplied to the evaporator train. 5) Capacity: Capacity of evaporator is measured in terms of its evaporating capability. It is the pounds of vapor produced per unit time. Steam requirement = Capacity .

steam economy of multiple effect evaporator

steam economy of multiple effect evaporator

Nov 28, 2017· Multi Effect Evaporator Multiple Effect Evaporation remains one of the popular methods used for the concentration of aqueous solutions. The chief factor influencing the economy of an evaporator system is the number of effects. By increasing the number of effects we can increase the economy of an evaporator system.

3-1 Evaporation Principles & Black Liquor Properties

3-1 Evaporation Principles & Black Liquor Properties

Simple Six-Effect Evaporator Set Steam Weak black liquor Product liquor Condenser Steam Economy ~ 5 1 234 5 6 Slide 12 Heat Transfer in Evaporators • Evaporation rate = Q = U*A*ΔT • U is the overall heat transfer coefficient • A is the total heat transfer surface area • Overall ΔT is the temp difference – Steam temperature in first .

Performance of Evaporator

Performance of Evaporator

Mar 18, 2017 · Economy of the evaporator is another important parameter which decides the performance of evaporator. It may be defined as the amount of steam used and is expressed in terms of pounds of vapor produced per pound of steam supplied to the evaporator train. Following are some of the methods to increase the economy of evaporator;

What is evaporation and what are the types of evaporation .

What is evaporation and what are the types of evaporation .

Mar 18, 2017 · 4) Economy: Economy of evaporator may be defined as the amount of steam used and is expressed in pounds of vapors produced per pound of steam supplied to the evaporator train. 5) Capacity: Capacity of evaporator is measured in terms of its evaporating capability. It is the pounds of vapor produced per unit time. Steam requirement = Capacity .

Performance of Evaporator - MyClassBook

Performance of Evaporator - MyClassBook

Evaporation (ZLD)