Ukuhambisa ubushushu ukusuka kulwelo olushushu ukuya kulwelo olubandayo ngodonga lwetyhubhu sisizathu sokuba uninzi lwethu lusebenzise iityhubhu ezicolekileyo.Kodwa unokubuza, yintoni inzuzo enkulu yokusebenzisa ityhubhu ephothiweyo?Kutheni ungasebenzisi ityhubhu eqhelekileyo ukwenza olu dluliselo?Kulungile unako kodwa ireyithi iya kucotha kakhulu.
Ngokungasebenzisi ityhubhu ephothiweyo ummandla wangaphandle awukho mkhulu kunommandla wangaphakathi.Ngenxa yoko, ulwelo olunowona mlinganiso usezantsi wokudlulisa ubushushu uya kuyalela iqondo lobushushu elipheleleyo.Xa i-coefficient yokudlulisa ubushushu yolwelo olungaphakathi kwityhubhu luphindwe kaninzi kunelo lwe-fluid ngaphandle kwetyhubhu isantya sokuhambisa ubushushu sisonke singaphuculwa kakhulu ngokwandisa indawo yangaphandle yombhobho.
Iityhubhu ezigqityiweyo zinyuka ngaphandle kwendawo ephezulu.Ngokuba netyhubhu ephothiweyo endaweni, yonyusa izinga lobushushu elipheleleyo.Oku ke kunciphisa inani lilonke leetyhubhu ezifunekayo kwisicelo esinikiweyo nto leyo ephinda icuthe ubungakanani besixhobo esipheleleyo kwaye ekuhambeni kwexesha inokwehlisa iindleko zeprojekthi.Kwiimeko ezininzi zokusetyenziswa, ityhubhu enye ephothiweyo ithatha indawo yeityhubhu ezintandathu okanye ngaphezulu ezingenanto ngaphantsi kwe-1/3 yeendleko kunye ne-1/4 umthamo.
Kwizicelo ezibandakanya ukuhanjiswa kobushushu ukusuka kulwelo olushushu ukuya kulwelo olubandayo ngodonga lombhobho, kusetyenziswa iityhubhu.Ngokuqhelekileyo, kwindawo yokutshintsha ubushushu bomoya, apho enye yamanzi ingumoya okanye enye igesi, i-coefficient yokudlulisa ubushushu kwicala lomoya iya kuba sezantsi kakhulu, ngoko ke indawo eyongezelelweyo yokuhambisa ubushushu okanye i-fin tube exchanger iluncedo kakhulu.Ukuhamba kwepateni iyonke yotshintshiselwano ityhubhu ephothiweyo ihlala inqumlana, nangona kunjalo, inokuba yi-parallel flow or counterflow.
Amaphiko asetyenziselwa ukunyusa umgangatho osebenzayo wetyhubhu yokutshintsha ubushushu.Ngaphaya koko, iityhubhu ezicikiziweyo zisetyenziswa xa i-coefficient yokudlulisa ubushushu ngaphandle kweetyhubhu iphantsi ngokuncomekayo kunaleyo ingaphakathi.Ngamanye amazwi, ubushushu obugqithiselwa ukusuka kulwelo ukuya kwirhasi, umphunga ukuya kwirhasi, efana nomphunga ukuya kwisitshintshi sobushushu somoya, kunye nolwelo lwethermic ukuya kwisitshintshi sobushushu somoya.
Izinga apho ubushushu obunjalo bunokuthi lwenzeke buxhomekeke kwizinto ezintathu – [1] umahluko wobushushu phakathi kwezi zinto zimbini;[2] i-coefficient yokudlulisa ubushushu phakathi kolwelo ngalunye kunye nodonga lombhobho;kunye [3] nommandla ongaphezulu apho ulwelo ngalunye luvezwe khona.
Ixesha lokuposa: Nov-18-2022