Unburnt hydrocarbons (UHCs) yog cov hydrocarbons emission tom qab roj av hlawv hauv lub cav. Thaum cov roj tsis hlawv tawm ntawm lub combustor, cov emission yog tshwm sim los ntawm roj "kev zam" cov nplaim taws. … Qee lub sij hawm lo lus "cov khoom ntawm kev combustion tsis tiav," los yog PICs, yog siv los piav txog hom tsiaj.
Dab tsi yog qhov chaw tseem ceeb ntawm cov pa roj carbon monoxide?
Kev nkag siab tshiab yog tias piston-ntiv nplhaib thiab lub taub hau-gasket crevice ntim thiab, kom tsawg dua, nqus thiab desorption los ntawm lubricating-roj films thiab chamber depositsyog qhov loj Qhov chaw ntawm unburned-hydrocarbon emissions.
Cov tshuaj twg yog qhov tshwm sim ntawm cov roj uas tsis tau hlawv?
Qee cov pa phem uas tsim los ntawm kev hlawv cov roj no yog carbon monoxide, nitrogen dioxide, hais, thiab sulfur dioxide. Cov khoom tuaj yeem muaj cov tshuaj lom neeg uas txuas nrog rau lawv. Lwm cov kuab paug uas tuaj yeem tsim los ntawm qee cov khoom siv yog cov tsis muaj hluav taws kub hnyiab thiab aldehydes.
Yuav ua li cas rau cov roj uas tsis tau hlawv?
Tsis tiav combustion ntawm ib tug hydrocarbon roj tshwm sim thaum tsis muaj oxygen txaus rau tag nrho combustion, tshwm sim los ntawm huab cua tsis zoo. Tsawg zog yog tso tawm. Hloov cov pa roj carbon dioxide, koj tuaj yeem tau txais cov pa roj carbon monoxide lossis cov pa roj carbon monoxide, feem ntau hu ua soot, lossis sib xyaw ntawm ob qho tib si.
Yuav ua li cas txo qis hydrocarbons?
Qhov chaw ntawm lub txim hluav taws xobua ib feem tseem ceeb hauv kev nthuav tawm cov nplaim taws mus rau thaj chaw uas qhov kev kub ntxhov txo cov phab ntsa zoo quenching thiab yog li txo cov concentration ntawm cov pa roj carbon monoxide.