Difluoromethane
Tirohanga Whānui o te Hua
Ingoa Matū: Difluoromethane
Tau CAS: 75-10-5
Tātai Ngota: CH₂F₂
Taumaha ngota: 52.02 karamu/mol
Ingoa Noa: R-32 (hei hauhautanga)
Ko te Difluoromethane (R-32) he hydrofluorocarbon (HFC) kore tae, kāore e paitini, ā, he mura ngāwari, he tino pai te mahi wera. Hei hauhautanga taiao o te whakatipuranga e whai ake nei, kua waiho hei huarahi matua ki ngā hauhautanga GWP teitei tuku iho (Global Warming Potential), e mōhiotia whānuitia ana mō tōna taurite o te whai huatanga, te haumaru, me te atawhai taiao.
Ngā Āhuatanga Matua
| Taonga | Whakatakotoranga | Painga |
| Te Pūnga Kohua (i te 1 atm) | -51.6°C (-60.9°F) | Ka āhei te whakawhiti wera whai hua i roto i ngā tono pāmahana iti |
| GWP (Pūmanawa Whakamahana Ao, 100 - tau) | 675 | He iti iho i te R - 410A (GWP = 2088) me te R - 22 (GWP = 1810), e whakaiti ana i te tapuwae waro |
| ODP (Pūmanawa Whakaiti Ozone) | 0 | Kāore he kino ki te paparanga ozone, e tutuki ana i ngā ture taiao o te ao (hei tauira, Montreal Protocol) |
| Te pāmahana tino nui | 78.1°C (172.6°F) | He pai mō ngā pūnaha hauhautanga me te papu wera e mahi ana i roto i ngā taiao pāmahana waenga ki te pāmahana teitei |
| Te mura | He mura ngāwari (whakarōpūtanga A2L i runga i te ASHRAE 34) | Haumaru mō te nuinga o ngā tono kāinga me ngā tono arumoni me te hoahoa tika |
| Te Arahi Wera | Teitei (pai ake i te R - 410A) | Ka whakarei ake i te pai o te whakamatao/whakamahana, ka whakaiti i te whakapaunga pūngao o ngā taputapu |
Ngā tono noa
E whakamahia whānuitia ana te R-32 i roto i ngā momo ahumahi me ngā kaihoko nā te mea he pai ake tana mahi me ōna painga ki te taiao:
Te Whakamahanatanga Āhuarangi mō ngā Whare Noho me ngā Pakihi: Hei whakamatao matua mō ngā waeine hauhautanga momo-wehewehe, ngā hauhautanga matapihi, me ngā pūnaha VRV (Rōrahi Whakamahanatanga Hurihuri). Ka whakakapi i te R-410A i roto i ngā taputapu hou, ka whakaiti i te whakamahinga pūngao mā te 10-15%.
Ngā Papu Wera: He pai mō ngā papu wera pūtake hau (ASHP) me ngā papu wera pūtake wai (WSHP), e whakarato ana i te mahi whakamahana pumau ahakoa i ngā pāmahana taiao iti (-10°C ki te 5°C).
Ngā Pūnaha Whakamatao: Whakamahia i roto i ngā pouaka whakamātao iti ki te rahi waenga, ngā pouaka whakaatu, me ngā wae rokiroki makariri, kia pai ai te whakamatao me te iti o te pānga ki te taiao.
Ngā Ākena Pupuhi Huka: I roto i ētahi tukanga ahumahi, ka mahi a R-32 hei ākena pupuhi mō ngā pahuka polyurethane pakari, hei whakapai ake i ngā āhuatanga whakamahana pahuka.
Te Hanganga Waro: He rauemi mata mō te hanga matū whai fluorine, tae atu ki ngā rongoā me ngā polymer motuhake.
Haumaru me te Whakatutukitanga
Ngā Aratohu Haumaru
Te whakahaere: Āta karohia te pa atu ki te kiri/kanohi; whakamahia he karapu tiaki, he mōhiti kanohi, me ngā taputapu manawa ki ngā wāhi kāore i te pai te hau.
Rokiroki: Rokirokihia ki tētahi wāhi hauhautanga, maroke, ā, he pai te hauhautanga, kia matara atu i ngā mura ahi, i ngā pāmahana teitei, me ngā matū whakahāora. Whakamahia he ipu hiri, ātete ki te waikura (hei tauira, he rango maitai, he rango konumohe rānei).
Te Kawe: Kia rite ki ngā ture a te UN mō te kawe i ngā hauhautanga (nama UN: 3252); kia tika te mau o ngā rango me te tapanga.
Te Whakatutukitanga o ngā Ture
E tutuki ana i ngā paerewa ASHRAE 34 (whakarōpūtanga haumaru A2L).
E tutuki ana i te Ture Hau-F a te EU (Ture (EU) 2014/512), e whakawhāiti ana i ngā tukunga hau-F me te whakatairanga i ngā huarahi kē atu he iti te GWP.
Kua whakaaetia e ngā kaihanga taputapu nui (hei tauira, Daikin, Mitsubishi Electric, Gree) hei whakamahi i roto i ā rātou tauira AC me te papu wera hou.
Ngā Kaupapa Matua o te Pepa Raraunga Hangarau (TDS)
| Tawhā | Uara | Tikanga Whakamātautau |
| Parakore (min) | 99.9% | GC (Whakamātautau Hau) |
| Te Ihirangi Makuku (mōrahi) | 10 ppm | Te Whakatakotoranga a Karl Fischer |
| Ihirangi Waikawa (mōrahi) | 0.1 ppm | Te ine ira |
| Toenga Kore-Pūrere (mōrahi) | 10 mg/kg | Ine taumaha |
| Pēhanga Kohu (i te 25°C) | 1.72 MPa | Ine Pēhanga |
He aha i whiriwhiri ai i tā mātou Difluoromethane (R-32)?
Teitei o te Parakore: Mā te 99.9% o te parakore e pumau ai te mahi a ngā taputapu me te roa o te ora ratonga.
Hoa-Taiao: Ko te GWP iti (675) e tautoko ana i ngā whāinga kore-waro o te ao, ā, e tutuki ana i ngā ture taiao pakari.
Whai Hua te Utu: Mā te pai ake o te whakamahinga wera ka whakaitihia ngā utu pūngao mō ngā kaiwhakamahi mutunga, ā, mā te kaha tuku nui ka whakaitihia ngā utu hoko.
Tautoko Ao: Ka whakaratohia e mātou he kōrero hangarau, he whakangungu haumaru, me te tuku i te wā tika ki ngā kiritaki puta noa i te ao, me ngā tiwhikete tae atu ki te ISO 9001 me te REACH.
Whakapā mai
Mō ngā utu, ngā tauira, ngā tuhinga TDS/COA katoa rānei, whakapā atu ki tā mātou tīma hokohoko:
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