Design an evaporator system, Mechanical Engineering

Assignment Help:

Q. Design an Evaporator System?

The Evaporator System is designed to produce high quality distillate. The feed water to the evaporator system is dosed with antiscalant and received in the evaporator feed header. The feed water is then sent through the plate and frame heat exchangers for preheating. The incoming feed water receives heat from the distillate leaving the evaporators. The preheated feed water is pumped to the evaporator.

Vapour generated in the evaporator flows to high-efficiency external mist eliminator, then to the vapour compressor and then is sent to the evaporator shell for heat transfer and condensation. The vapour that condenses is high purity distillate water, which flows to Distillate Tank and is pumped out of the evaporator system.

The brine from the evaporator sump is pumped with a recirculation pump to the top head of the evaporator column where it is distributed onto the tube walls. The brine flows down the inside of the tube and evaporates as it received energy from the steam condensing on the outside wall. The highly concentrated brine that is not evaporated is blown down from the evaporator system to the brine waste disposal system.

Vapour compression uses mechanical energy input to achieve evaporation and condensation. The water vapour is compressed, increasing its saturation pressure so that when it condenses, it does so at a higher temperature. The compressed vapour flows to the heating side of the evaporator. As it condenses, it transfers the latent heat of vaporization back to the liquid film on the tube side.


Related Discussions:- Design an evaporator system

Calculate tensions in chain and chord - mechanics, Calculate tensions in ch...

Calculate tensions in chain and chord - Mechanics: A lamp of mass 1Kg is hung from the ceiling by a chain and is pulled aside by horizontal chord until the chain makes an ang

What is pre-fabricated buildings, Q. What is Pre-fabricated buildings? ...

Q. What is Pre-fabricated buildings? Buildings: Pre-fabricated buildings shall be as per specification GS-904-0520 and, when provided, conceptual drawings prepared by Engine

Longitudinal stress in the plate section through the rivets, A steam boiler...

A steam boiler, 3 m in diameter, is made of 25 mm thick mild steel plates. The efficiency of longitudinal riveted joint is 88% and that of circumferential riveted joint is 70%. Cal

Evaluate elongation of wire, Evaluate Elongation of wire: An aerial c...

Evaluate Elongation of wire: An aerial copper wire ( E =1 x 10 5 N/m m 2 ) 40 m long is having cross sectional area of 80 mm 2 and weighs 0.6 N per meter run. I

Explain moulding sand for non-ferrous casting, Q. Explain Moulding Sand for...

Q. Explain Moulding Sand for Non-ferrous Casting? The melting point of non- ferrous metal is much lower than that of ferrous metals. Therefore, the moulding sands for non-ferr

Type of strain, Type of strain: There are basically four type of strai...

Type of strain: There are basically four type of strain 1. Tensile strain 2. Compressive strain 3. Volumetric strain 4. Shear strain

Combined rules- priority rules-conventional priority rules, Combined Rules ...

Combined Rules           MOD (modified operation due date)                                 PN j = max (t + o j , t dj ) (SPT-Tr) (Truncated SPT)

Determine strain using wheatstone bridge, a) Can you explain Discuss LVDI i...

a) Can you explain Discuss LVDI in detail. b) Derive the expression for calculating strain using wheatstone bridge. c) Distinguish between analog and digital transducers.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd