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The main objective of this study is to calculate and determine design parameters for a novel wire cloth micro heat exchanger. Wire cloth micro heat exchangers offer a range of promising applications in the chemical industry, plastics technology, the recycling industry and energy technology. We derived correlations to calculate the heat transfer rate, pressure drop and temperature distributions through the woven structure in order to design wire cloth heat exchangers for different applications. Computational Fluid Dynamics (CFD) simulations have been carried out to determine correlations for the dimensionless Euler and Nusselt numbers. Based on these correlations, we have developed a simplified model in which the correlations can be used to calculate temperature distributions and heat exchanger performance. This allows a wire cloth micro heat exchanger to be virtually designed for different applications.

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Thc design of gns-Iicntcd furnnccs is intcrcsting in vicm of thc cvcr-increasing dcninnd for plnnt cnpnblc of rcgulation within w r y finc tcmpcrnturc Iiniits, to dcnl with ninny heat-trcatnicnt opcrations carried 011 in tlic cnginccring tmdcs. Iuiprovcnicii ts during rccciit y c y s haw rcsultcd in grcntly incrcased cfiicicucics, c~inbll~ig work to bc ciirried out nutonintknlly. Tlic modcrn trcnd, cspcciaIly in plant for t.lic lic:it-trc~tnic~it of coniponcnts of tIic nutoniobik ii1id othcr trades, xrliich arc now produccd iri Inrge qurintitics, is to iiicrcnsc still furtlicr their autoniiLticity, witli tlic rcsult tlirit n 1iiod~r11 hat-trcntnicnt furnace for iiinss-~~roductio~i work iilny oftcn be considcrcd to bc nothing less t.hnu n I~iirtlcning iuncliiiic, \vIiich will :iutoiii:tticnlly carry goods t.lirough t,hc Iicnting and cooling cl~nuibcrs nnil dischrpc tlicni into suitnbly nrrnngctl I~oslics, ivlierc qucncliing takes placc ; iiftcr this, if iicccssnry, an nutoinntic tcnipcring trcat,iiicnt cnu IN givcii, wlicii the part iculiir component will tlicii be finislicd nud ready for use.Oiily wlicii coniponcnts nrc produccd in w r y lurpc qwintitics ciw R furiiacc bc opcratctl iii As I iiitcnil to dcnl with furnnccs ol~cratiiip oil gns itsit fuel, I will refer gcncrally to t l~c viirious compoiiclits which, in coinbinatiou, constitute n coiiipletc furnncc, C~LCII of wliicli plnys n dcfinitc p r t in tlic \\.orli of tlic coniplctc furnitcc, niid tlicrcforc lins to IJC dcsigiictl with tluc coiisitlcrntion of t,lic otlicr conipo~~cnts.llic main orgnns of gns-licntcd fiminccs :ire ns f O l l O \~S :-Y'he worliiy c l r~t b e r or I~citrth, i n which t,Iic miitcrin.1 to bc hcatcd is pliiceil, iiiny consist of n niafllc, OVCII, or slab of rcfrnctoi*y mntcrinl licirtcii by tlic conibust ion of tlic fucl to thc dcsircd teiiipcrnttirc, this licclt bcing trausfcrrcd to tlic lond by conduction, rndiiition, or convcction, according to tlic pnrticuli~r hccrt.ing opriitioii.In gas-fired fiiri~nccs tlic conibustioii 01 tho fuci is usunlly coniplctcd in thc working clinmbcr, or in tljc mulllo typo in n cornbefition cliiinil~cr siirroiinding it, 197 the nrlditioii of sccondnry nir.The ~1r0~7rtcer.-\\'l~cii working on pruiliiccr giis, tlic produccr is that part of tho furnacc in ~& l i tlic colilbustiblc gnscs itrc produccd I J~ tlic incomplctc CoIiibIIstion of tlic fucl, thc inco~nplctcncss of this coliilustion bcing brought about Ly limiting tlic imolllit of prilnnry air ~iipplicd to the produccr. Gnscs froin t~ produccr mny coiisist citlicr of carbon nionosidc :ilonc or a niisturc of tlic inonosidc with tho dioxide, mct.linue, hyclrogcn and wntcr, togctlicr with tlic nit.rogcn wliich is tnkcn in with thc osygcn froin tlic ntmosplicrc nnd acts mcrcly :is n, dilncnt.N'licrc tlic furnncc is ilirccf-fircd, tlic wnstc gnscs proiluccd by tllc combustion of thc gas in, or surrounding, tlic working chonibcr pass to tlic wnstc-gcis fluc a t tlic tcmpcrnturc of tlic coinbustion chnmbcr. Tlic cshnusting of tlic wastc giises is usunl...

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