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

Elastomers, define elastomer.explain in details?

define elastomer.explain in details?

Heat - thermodynamics, He a t: Sol: Heat can be energy transferred...

He a t: Sol: Heat can be energy transferred across the boundary of a system because of temperature difference between system and surrounding. The heat is transferred by th

Evaluation the enthalpy of steam - thermodynamics, Evaluatio n the Enthalp...

Evaluatio n the Enthalpy of Steam: Let h f   = Heat of liquid or sensible heat of water in KJ/kg h f g   = Latent heat of vaporization of steam in KJ/kg t

Determine the springs needed to absorb the energy, Determine the springs ne...

Determine the springs needed to absorb the energy: A vehicle weighing 28 kN and running at 2.5 m/sec is to be brought to rest by a buffer springs. Determine the number of spri

Scalar and vector quantities, Scalar and Vector quantities: A quantity...

Scalar and Vector quantities: A quantity is a scalar if it is completely defined by its magnitude alone. For example: Length, area, and time. While quantity is said to be vect

Lami''s theorems, alternative theorems for lamis theorem

alternative theorems for lamis theorem

Shear stress, write the assumption made in derivetion of shear stress produ...

write the assumption made in derivetion of shear stress produced in circular shaft subjected to torsion

Point and path function - thermodynamics, Point and Path Function - Thermod...

Point and Path Function - Thermodynamics: Poin t Function A point function is single valued function which always possesses a single - value is all states. For instance

Evaluate resultant force on the bucket, A single jet pelton wheel runs at 3...

A single jet pelton wheel runs at 300 rpm under a head of 510 m. the jet diameter is 200m, its deflection inside the bucket is 165 o and its relative velocity is reduced by 15% be

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