Qhov zoo dua qhov kub hloov pauv ntawm cov phaj finned hlab, qhov siab dua lawv cov coefficient ntawm cov cua sov yuav twv yuav raug hu
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Qhov zoo dua qhov kub hloov pauv ntawm cov phaj finned hlab, qhov siab dua lawv cov coefficient ntawm cov cua sov yuav twv yuav raug hu
Nrog rau kev vam meej tas mus li thiab kev loj hlob ntawm tib neeg, qhov kev thov rau cov phaj finned raj yog nce. Txhim kho nws cov kev hloov pauv cua sov yog ib yam uas yuav tsum tau kawm. Kev txhim kho lub tshav kub hloov coefficient ntawm cov cuab yeej tam sim no yog txoj hauv kev zoo tshaj plaws los txhim kho nws cov kev hloov hluav taws xob. Tag nrho cov thermal kuj thaum lub sij hawm hloov cov txheej txheem kub txiav txim qhov loj ntawm nws cov coefficient ntawm tshav kub hloov. Qhov zoo dua qhov hloov hluav taws xob ntawm lub phaj finned tube, qhov siab dua nws cov hluav taws xob hloov pauv coefficient, thiab qis dua nws tag nrho cov thermal kuj. Txhawm rau txhim kho nws cov coefficient ntawm cov cua sov, ntau lub tuam txhab siv cov ntsiab lus ntxiv thiab siv cov kev ntsuas kom muaj zog los txhim kho nws cov cua sov hloov pauv, feem ntau suav nrog cov kab rov tav corrugated, scaling tubes, threaded tubes, ob-sided kauv finned tubes, thiab ntxiv baffles.
Ntawm lawv, cov txheej txheem ntawm kev ntxiv turbulence additives rau lub tshav kub exchangers nyob rau hauv lub phaj finned hlab yog feem ntau siv nyob rau hauv kev lag luam. Nws tuaj yeem txhim kho nws cov kev hloov hluav taws xob zoo, txo cov khoom hnyav, txuag cov khoom siv, thiab txo nws qhov chaw hloov chaw kub heev. Txawm li cas los xij, nws tsuas yog qee qhov kev txwv, vim tias qhov kev nthuav dav ntawm qhov chaw hloov pauv cua sov thiab ua kom cov cua sov hloov pauv qhov sib txawv yuav raug txwv los ntawm cov cuab yeej siv, nyiaj txiag, qhov chaw, thiab kev ua tau zoo. Tam sim no, lub hom phiaj tseem ceeb ntawm nws cov cuab yeej hloov hluav taws xob zoo dua yog yuav ua li cas txhawm rau txhim kho cov nyhuv hloov hluav taws xob ntawm lub phaj los ntawm kev tswj nws cov coefficient ntawm cov cua sov. Vim tias tag nrho cov thermal tsis kam yog qhov sib npaug ntawm ntau qhov sib txawv ntawm cov thermal resistances thaum siv, los hloov cov cua sov coefficient, nws yog ib qho tsim nyog yuav tsum tau soj ntsuam txhua qhov hluav taws xob tsis zoo hauv cov txheej txheem hloov hluav taws xob. Tus yuam sij rau kev txhim kho cov kev hloov hluav taws xob ntawm cov phaj finned tubes yog los tswj ntau yam thermal resistances thaum lub sij hawm hloov cov txheej txheem.
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