R134A
Hais txog R134A
R134A tseem hu ua HFC 134A, yog HFC refrigerant uas tau qhia los ua kev hloov pauv rau ozone-depleting hydrochlorofluorocarbons (HCFCs) thiab chlorofluorocarbons (CFCs). Cov yam ntxwv tsis zoo ntawm HFC 134A yog:
- Tshuaj formula: CF3CF=CH2
Molecular Luj: 114.04 g / mol
- Boiling point ntawm atmospheric siab: -29.8 degree
- Qhov chaw khov: -103.3 degree
- Qhov ceev ntawm 25 degree thiab atmospheric siab: 1.12 kg / m3
- Ozone depletion peev xwm (ODP): 0 (zero)
- Ntiaj teb no warming muaj peev xwm (GWP): 4
- Flammability: me ntsis flammable (ASHRAE kev nyab xeeb kev faib tawm A2L)
HFC 134A feem ntau yog siv los ua cov tub yees hauv tsheb cua txias, tab sis nws kuj tuaj yeem ua haujlwm hauv kev lag luam thiab thaj chaw cua txias thiab daim ntawv thov tub yees. Nws qhov qis GWP ua rau nws muaj kev nyab xeeb dua rau lwm tiam ntawm cov tub yees, tab sis nws cov nplaim taws yuav tsum tau ceev faj tshwj xeeb hauv kev tuav thiab khaws cia.
R134A refrigerant, tseem hu ua HFC 134A tub yees hauv Suav, yog lub cim thib plaub ntawm cov tub yees tshiab hauv ib puag ncig. Nrog rau kev txhim kho ntawm kev tiv thaiv ib puag ncig tam sim no, kev hloov HFC cov tub yees tau maj mam muab tso rau hauv cov txheej txheem. HFC refrigerant R134a yog dav siv nyob rau hauv lub xov tooj cua txias vim hais tias ntawm nws cov tub yees kev ua tau zoo thiab siab nkhaus. Txawm li cas los xij, HFC-134Ib lub tub yees yog ib lub tub yees thib peb nrog tus nqi GWP siab dua, thiab tau raug teev tseg raws li cov khoom siv theem tawm hauv EU.
HFC 134A yog HFC refrigerant uas feem ntau siv los hloov cov hydrofluorocarbon (HFC) cov tub yees hauv cov tshuab cua txias hauv tsheb. Nws muaj peev xwm ua kom lub ntiaj teb qis dua (GWP) dua li cov tub yees yav dhau los, uas ua rau nws muaj kev xaiv zoo rau ib puag ncig. Nws kuj tseem tsis yog-ozone depleting thiab suav tias yog kev nyab xeeb rau kev siv hauv tshuab cua txias. Txawm li cas los xij, muaj qee qhov kev txhawj xeeb txog nws qhov flammability, uas tau ua rau muaj kev tsis sib haum xeeb nyob ib puag ncig nws siv.
HFC 134A yog cov tub yees siv hauv cov tshuab cua txias. Nws yog qhov nyiam cov tub yees rau cov tsheb tshiab vim tias nws muaj peev xwm ua kom lub ntiaj teb qis (GWP) piv rau cov tub yees yav dhau los xws li R-134a. Qee qhov kev thov ntxiv ntawm HFC 134A suav nrog:
1. Kev lag luam cua txias tshuab: HFC 134A tau siv rau hauv qee qhov kev lag luam cua txias vim nws qhov GWP qis.
2. Cov kuab tshuaj ntxuav: HFC 134A kuj tseem tuaj yeem siv los ua cov kuab tshuaj ntxuav cov ntawv luam tawm Circuit Court boards, cov khoom siv hluav taws xob thiab cov tshuab precision vim nws tsis muaj tshuaj lom thiab tsis tshua muaj kev cuam tshuam ib puag ncig.
3. Cov neeg ua npuas ncauj tshuab: HFC 134A tuaj yeem siv los ua tus neeg ua haujlwm tshuab hauv kev tsim cov npuas npuas npuas vim nws cov GWP qis.
4. Cov tshuab hluav taws xob tua hluav taws: HFC 134A kuj tseem tuaj yeem siv los ua tus neeg tua hluav taws tua hluav taws hauv qee qhov kev siv vim nws tsis tshua muaj toxicity thiab tsis tshua muaj kev cuam tshuam ib puag ncig.
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