Counter Flow Heat Exchangers & Working Principles
A heat exchanger is a device that allows heat to be transferred from one mediumtoanotherquicklyandefficiently. It isusedtoheat orcoolacertain medium by utilizing another in the area. The technique is based on the fundamental science of heat transport from a hot to a cold medium. While anyonecanchangethetemperatureofamaterialbymakingphysical contact withitorcombiningitwithanotherliquid.Aheatexchangerallowsheattobe transferredwithoutmakingphysicalcontact.
It is made up of separate elements with a strong thermal conductivity that operates as heat transmission elements. They divide the two fluids while allowing heat to be transferred efficiently. The real heat transfer occurs in reaction to the relative flow of liquid in these separated parts, regardless of the size and shape of the exchanger. For effective heat transfer between the medium,aheat exchangermight haveacontemporaneous,counter,orcrossflowarrangement.
Heatexchangerswiththeoppositefluidflowdirectionareclassedascounterflow heat exchangers.Shell andtube,plate,double-pipe,one-phase,ormultiphase counter flow heat exchangers are all options. Alaqua is processing equipment such as evaporator, distillation, crystallizer, spray dryer, solvent recovery, and heat exchanger equipment supplier worldwide based in the USA.
Different Types of Heat Exchangers
Heatexchangersaretypicallyclassifiedintotwocategoriesbasedontheflow arrangement: counter-flow and parallel flow heat exchangers, which are referredtoascrossflowandinline,respectively.
Inline
Hot and cold fluids run in parallel in this type of exchanger. They're called counter-current counterflow heat exchangers if they move in the other direction,andarecalledparallelorco-currentheatexchangersiftheymovein thesamedirection.
Due to the temperature differential between the fluids being uniform throughout fluidroutesandtheexchanger,counter-flowheat exchangersare moreefficientthanparallelexchangers.
Crossflow
The fluid in the cold and hot parts of a crossflow heat exchanger flows perpendiculartoeachother.Thistypeofheatexchangerismoreefficientthan counterflowheatexchangers,andtheentireheatexchangercanbecontained
within a box. The logarithmic mean temperature difference (LMTD) of this kindislargerthanthatoftheinlinetype.
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