Yav dhau los, 5,000-phaus ammonia xau tau tshwm sim ntawm lub tsev khaws khoom noj nqaij nruab deg hauv cheeb tsam Boston, uas tau tua ib tus neeg ua haujlwm thiab yuam kom tub ceev xwm Boston tau tshaj tawm tsab ntawv nyob rau hauv qhov chaw. Qhov kev pab cuam teeb meem yuav yog tus neeg ua txhaum. Yog li ntawd, thaum koj nyeem cov hauv qab no qhov zoo thiab qhov tsis zoo ntawm ammonia raws li cov tub yees, khaws cov ntsiab lus tseem ceeb hauv siab: Nruam, kev ntsuam xyuas thiab kev saib xyuas ua ntej yog qhov tseem ceeb rau txhua qhov kev daws teeb meem ammonia-lax tshuaj xyuas cov txheej txheem yuav ua rau cov neeg ua haujlwm thiab cov neeg nyob hauv qhov txaus ntshai. .
Muab qhov kev pheej hmoo no, vim li cas ammonia thiaj li nrov dua? Raws li muaj tsawg dua thiab tsawg dua CFCs thiab HCFCs uas tuaj yeem siv los ua cov tub yees, tib neeg tab tom nrhiav ammonia ua lwm txoj hauv kev zoo dua. Raws li ASHRAE thiab International Ammonia Refrigeration Research Institute (IIAR), ammonia yog ib qho txiaj ntsig zoo, muaj txiaj ntsig zoo rau CFC thiab HCFC, thiab nws tseem muaj kev nyab xeeb rau ib puag ncig.
Ammonia (cov tshuaj formula NH3) yog cov pa roj uas muaj ob yam roj-nitrogen thiab hydrogen. Txawm hais tias nws pom nyob rau hauv cov xwm txheej lossis tsim los ntawm tib neeg, ammonia tsis muaj xim tab sis muaj cov ntxhiab tsw ntxhiab tsw. Ammonia, uas feem ntau yog siv los ua lag luam hauv cov khoom siv khov thiab txias txias, kuj hu ua" anhydrous ammonia" vim nws muaj yuav luag tsis muaj dej (purity ntawm 99.98%). Hauv qhov sib piv, cov ammonia hauv tsev tsuas muaj li ntawm 10% ntawm qhov hnyav ntawm ammonia tov nrog dej.
Raws li lub tub yees, ammonia muaj plaub qhov zoo dua CFCs thiab HCFCs:
Tus nqi tsim kho ntawm ammonia tub yees yog 10-20% qis dua li ntawm lub tub yees siv CFC vim nws tuaj yeem siv cov kav dej nqaim.
Ammonia yog cov tub yees uas muaj 3-10% ntau dua li CFC, yog li ammonia-based systems xav tau hluav taws xob tsawg, yog li txo cov nqi khiav lag luam.
Ammonia muaj kev nyab xeeb rau ib puag ncig, nrog rau ozone depletion peev xwm (ODP) qib ntawm 0 thiab lub ntiaj teb sov sov muaj peev xwm (GWP) qib ntawm 0.
Ammonia yog pheej yig dua li CFC lossis HCFC
Kev siv ammonia ua lub tub yees muaj ob qhov tsis zoo:
Nws tsis sib xws nrog tooj liab, yog li nws tsis tuaj yeem siv rau hauv txhua qhov system nrog cov kav dej tooj liab.
High concentrations ntawm ammonia yog tshuaj lom. Txawm li cas los xij, muaj ob yam uas tuaj yeem txo qhov kev pheej hmoo no: qhov tshwj xeeb tsis hnov tsw ntawm ammonia tuaj yeem kuaj pom ntawm qhov siab qis dua qhov uas pom tau tias txaus ntshai, thiab ammonia yog sib dua li huab cua, yog li yog tias nws xau, nws yuav nce thiab tawg hauv qhov chaw.
