Yintoni uluhlu? Uhlalutyo olubanzi lwenkcazo yoluhlu kunye nokubaluleka kwayo
Kwishishini lemichiza, umlinganiselo ochanekileyo kunye nolawulo yenye yezinto eziphambili ekuqinisekiseni inkqubo yokuvelisa egudileyo. Yintoni uluhlu? Lo mbuzo ubalulekile ekukhetheni nasekusetyenzisweni kwezixhobo zekhemikhali kunye nezixhobo. Kule nqaku, siya kuchaza ngokubanzi inkcazo yoluhlu, indlela esetyenziswa ngayo kwishishini lemichiza, kwaye kutheni ukuqonda kunye nokukhetha uluhlu olufanelekileyo lubalulekile kwimveliso.
Inkcazo esisiseko yoluhlu
Yintoni uluhlu? Ukubeka ngokulula, uluhlu luluhlu lwamaxabiso olunokulinganisa ngokuchanekileyo isixhobo sokulinganisa. Kushishino lweekhemikhali, uluhlu ludla ngokubhekisa kuluhlu phakathi kobuncinci kunye namaxabiso aphezulu anokuthi izixhobo ezifana nezinzwa zoxinzelelo, iithemometha, iimitha zokuhamba, njl.njl. Ngokomzekelo, inzwa yoxinzelelo ingaba noluhlu lwe-0-100 bar, oku kuthetha ukuba iyakwazi ukulinganisa uxinzelelo phakathi kwe-0 kunye ne-100 bar.
Ubudlelwane phakathi koluhlu kunye nokuchaneka kwesixhobo
Uluhlu lokuqonda alukho nje malunga nokuqonda uluhlu lokulinganisa lwesixhobo, lukwangokuchaneka komlinganiselo. Ngokuqhelekileyo, ukuchaneka kwesixhobo sokulinganisa kuhambelana noluhlu lwaso. Ukuba uluhlu lukhulu kakhulu, ukuchaneka kokuchaneka komlinganiselo kunokuncitshiswa; ngelixa ukuba uluhlu luncinci kakhulu, lunokugqithisa amandla okulinganisa isixhobo, okubangela ukufundwa okungachanekanga. Ngoko ke, xa ukhetha isixhobo, uluhlu olufanelekileyo lunokuqinisekisa ukuba iziphumo zokulinganisa zombini ngaphakathi koluhlu olusebenzayo kwaye luchaneke kakhulu.
Ukusetyenziswa koluhlu kwimveliso yeekhemikhali
Kwimveliso yeekhemikhali, umbuzo wokuba yintoni uluhlu olubaluleke kakhulu. Iinkqubo ezahlukeneyo zeekhemikhali zifuna iintlobo ezahlukeneyo zezixhobo zokulinganisa, kwaye ukhetho loluhlu luchaphazela ngokuthe ngqo ukhuseleko kunye nokusebenza kakuhle kwenkqubo yokuvelisa. Ngokomzekelo, xa ubeka iliso utshintsho kwiqondo lokushisa kwi-reactor, ukuba uluhlu lwe-thermometer alwanelanga ukugubungela uluhlu olunokwenzeka lokutshintsha kweqondo lokushisa, oku kunokukhokelela kwiimpazamo okanye umonakalo wezixhobo, ezichaphazela ukuzinza kwayo yonke inkqubo yokuvelisa. Ukuqonda kunye nokukhetha uluhlu oluchanekileyo ngoko ke kubalulekile ekuphuculeni kunye nokusebenza ngokukhuselekileyo kweenkqubo zokuvelisa imichiza.
Indlela yokukhetha uluhlu olufanelekileyo
Ukukhetha uluhlu oluchanekileyo kufuna indibaniselwano yezinto kwinkqubo yokuvelisa, kubandakanywa uluhlu olulindelekileyo lokulinganisa, uluhlu olunokwenzeka lokuguquguquka kunye nokuchaneka komlinganiselo ofunekayo. Kukwafuneka kuqwalaselwe ukukwazi kwesixhobo ukuziqhelanisa neemeko ezithile zokusingqongileyo (umz., ubushushu obuphezulu, uxinzelelo oluphezulu, iimeko ezingqonge umhlwa, njl. njl.). Ukuba kukho ukutenxa ekukhethweni koluhlu, kunokukhokelela kwidatha yokulinganisa engachanekanga kwaye ichaphazele izigqibo zokuvelisa. Ke ngoko, ukuqonda intsingiselo yoluhlu ngokuchanekileyo kunye nokwenza ukhetho olufanelekileyo ngundoqo ekuqinisekiseni inkqubo yokuvelisa egudileyo.
Isishwankathelo sokubaluleka koluhlu
Umbuzo wokuba yintoni uluhlu aluhambelani kuphela noluhlu lokulinganisa isixhobo, kodwa kunye nokuchaneka komlinganiselo kunye nokhuseleko lokuvelisa. Kwishishini lemichiza, ukuqonda okuchanekileyo kunye nokukhethwa koluhlu kubalulekile, kungekhona nje ukuphucula ukusebenza kwemveliso, kodwa nokuqinisekisa ukhuseleko kunye nokuzinza kwemveliso. Ke ngoko, ulwazi loluhlu sesinye sezakhono eziyimfuneko kwiingcali zemichiza.