Aromatawai Mahi Pūnaha Whakamahana Ā-Whare
He whakamahinga pūngao whakahou te whakamahana waiariki e piki haere ana te aro ki tēnei mea nā tōna kaha ki te whakarato wera i runga i te pumau, te whai hua, me te āhua pai ki te taiao. Ka whakamahia e tēnei pūnaha te pūngao wera mai i roto i te whenua, mā te papu wera pūtake whenua, mā te whakamahi tika rānei i ngā puna waiariki. Heoi, kia tino puta ai ngā hua pai rawa atu i roto i te haumitanga me te whakahaere, me arotake tonu te mahi ka taea te ine. Ka matapakihia e tēnei tuhinga te aromatawai i te mahi a te pūnaha whakamahana waiariki, ngā tohu hei whakaaroaro, me ngā āhuatanga hangarau e whakatau ana i te angitu o te pūnaha.
1. He Tirohanga Whānui mō ngā Pūnaha Whakamahana Ā-Wharewhenua
I te nuinga o te wā, e rua ngā huarahi matua o ngā pūnaha whakamahana waiariki. Tuatahi, ka whakawhitihia te wera e ngā papu wera waiariki mai i te whenua ki tētahi whare (hei whakamahana) ki tētahi whare rānei (hei whakamatao). Kei roto i tēnei pūnaha he wae papu wera, he ara iahiko wai, me tētahi whakawhiti wera porowhita whenua, he paipa whakapae, he poutū (he puna keria), he pūnaha wai whenua rānei. Tuarua, ka whakamahia e te whakamahinga tika ngā waiariki mō te whakamahana wāhi, te wai wera o te whare, ngā whare kati kōtuhi, tae atu ki ngā tukanga ahumahi māmā, i ngā wāhi he papaku te kaha o te waiariki.
He mea tika te aromatawai i te mahi mō ngā momo pūnaha e rua, engari he rerekē pea te arotahi me ngā taputapu. I roto i ngā papu wera, ko te arotahi matua ko te whai huatanga hiko me te mahi wera. I roto i te whakamahinga tika, ka nui ake te aro o te aromatawai ki te kounga o te pūtake, te tere rere me te pumau o te pāmahana, me te pono o te whatunga paipa me ngā whakawhiti wera.
2. Te Kaupapa o te Aromatawai Mahi
He maha ngā whāinga matua o te aromatawai i te mahi a ngā pūnaha whakamahana waiariki:
1. Whakarite kia whai hua te pūngao e ai ki te hoahoa, ki te whāinga rānei, hei tauira, te whakaiti i te whakapaunga hiko i roto i ngā papu wera.
2. Aromatawai i te pono o te mahi, tae atu ki te auau o ngā raruraru, te pumau o te pāmahana putanga, me te kaha ki te whakatutuki i ngā kawenga tihi.
3. Tāutuhia wawetia te kino, te hekenga rānei o te mahi, hei tauira, te paru o te whakawhiti wera, te hekenga rānei o te mahi o te porowhita whenua.
4. Whakapai ake i ngā utu whakahaere me te tiaki, mā te whakarerekē i ngā pūwāhi kua whakaritea, ngā wātaka whakahaere, ngā rautaki whakahaere rānei.
5. Te whakaatu i ngā painga taiao, hei tauira, te whakaiti i ngā tukunga CO₂ ki te whakataurite ki ngā pūnaha e ahu mai ana i ngā pūmua tawhito.
Ki te kore he aromatawai auau, ka kore pea ngā pūnaha e mahi i raro iho i te kaha tino pai, ā, ka piki ake ngā utu me te poto ake o te roa o te ora o ngā wāhanga.
3. Ngā Tohu Mahi Matua
Ko ētahi o ngā tohu e whakamahia whānuitia ana hei aromatawai i ngā pūnaha whakamahana waiariki ko:
a) Tauwehenga Mahi (COP)
Ka ine te COP i te ōwehenga o te pūngao wera e whakaputaina ana ki te pūngao hiko e pau ana i te papu wera. Hei tauira, ko te COP o te 4 te tikanga ko ia 1 kWh o te hiko ka whakaputa i te 4 kWh o te wera. Ka rerekē te COP i waenga i ngā āhuatanga kawenga wāhanga me te kawenga katoa, ā, ka pāngia e te pāmahana oneone me te pāmahana o te tuku whakamahana.
b) Tauwehenga Mahi o te Wā (SPF)
He putanga "wā" pono ake te SPF o te COP nā te mea ka tatau i te mahi i roto i tētahi wā mahi motuhake (hei tauira, he tau). Ka whakaarohia e te SPF ngā huringa tīmatanga-mutu, ngā rerekētanga o te rangi, me ngā rautaki whakahaere. Mō ngā aromatawai pūnaha o te ao tūturu, he mea nui ake te SPF i te COP ohorere.
c) Te Whai Hua o te Whakawhiti Wera me te ΔT
I roto i ngā pūnaha whakamahi tika, i ngā pūnaha rānei he whakawhiti wera, he tohu nui te rerekētanga pāmahana tomo-puta (ΔT) me te whai huatanga o te whakawhiti wera. Ka tohu pea te hekenga o te ΔT i te poke, te tauine, te hekenga rānei o te tere rere.
d) Te Whakamahinga Pūngao o te Papu Whakawhiti
Haunga te pūngao i roto i te papu wera, he nui te kaha e pau ana i te papu tohanga. Me uru atu ki ngā aromatawai te mana o te papu, te tere rerekē (mēnā he VFD te whakamahinga), me te whakatairite ki te rere tuturu.
e) Te Pūmautanga o te Pāmahana me te Whakamarie
Mō ngā whare, ehara i te mea ko te whai hua anake te mea nui o te mahi, engari ko te kaha hoki o te pūnaha ki te pupuri i te pāmahana o te rūma i roto i ngā paerewa whakamarie. Ka tohu pea ngā piki me ngā heke nui i ngā mana whakahaere hē, i te koretake o te kaha, i ngā raruraru tohatoha wera rānei.
f) Te Wātea me te Pono
Ko te wāteatanga e tohu ana i te ōrau o te wā ka taea e te pūnaha te whakahaere ina hiahiatia. E pā ana te pono ki te maha o ngā motuhanga me ngā wā whakatikatika (MTBF/MTTR). He nui te wāteatanga o te pūnaha waiariki pai nā te mea he pumau te pūtake wera.
4. Ngā Tikanga Kohikohi Raraunga me ngā Taputapu
Me tika ngā raraunga hei aromatawai i te mahi. Ko ngā taputapu e whakamahia whānuitia ana ko:
– Mita rere hei ine i te rere o te wai i roto i te koropiko whenua, i te raina waiariki rānei.
– Ngā pūoko pāmahana (RTD/thermocouple) i ngā pūwāhi tomo me te pūwāhi putanga o te whakawhiti wera, te papu wera, me te tuku-hoki o te pūnaha whakamahana.
– Mita mana hei ine i te whakapaunga hiko o ngā pūwhakakoi hiko, ngā papu me ngā mana whakahaere.
– He pūoko pēhanga hei kite i ngā hekenga pēhanga e tohu ana i ngā aukati, i ngā turuturu rānei.
– Pūhiko raraunga/SCADA hei hopu raraunga tonu, hei whakahaere hoki i te tātaritanga ia.
Ko te mea tino pai, ka whakamahia ngā raraunga i tētahi taumira tino teitei (hei tauira, mō ia meneti, mō ia 5 meneti rānei) kia mārama ai te huringa whakahaere me te whanonga whakahaere.
5. Tātari Mahi Wera me te Pūngao
Ko te taahiraa tātari ka tīmata mā te tatau i te putanga wera mā te whakamahi i te whārite taketake:
> Q = ṁ × Cp × ΔT
Ko Q te tere wera (kW), ko ṁ te tere rere o te papatipu, ko Cp te kaha wera motuhake o te wai, ā, ko ΔT te rerekētanga pāmahana. Kia whiwhi i te Q, whakaritea ki te whakapaunga hiko hei whiwhi i te COP tuturu i raro i ngā āhuatanga rerekē. Mō te SPF, whakauruhia te pūngao wera katoa me te pūngao hiko katoa i roto i tētahi wā kua whakaritea.
Kei roto i ngā tātaritanga anō:
– Te whakataurite i te mahi ki te hoahoa (paerewa whakatūnga).
– Tāutuhia ngā wā o te ngoikore o te mahi (hei tauira, ina heke te pāmahana o te oneone, i te wā rānei e tino taumaha ana).
– Aromatawai whakahaere: he maha rawa ngā wā ka tīmata, ka mutu rānei te pūnaha, ā, ka whakaiti i te whai huatanga?
6. Ngā Take e Pā Ana ki te Mahi a te Pūnaha
Ko ētahi o ngā āhuatanga matua e whakatau ana i te pikinga me te hekenga o te mahi ko:
a) Ngā Āhuatanga o te Oneone me te Porowhita Whenua
He nui te pānga o te kawe wera o te oneone, te nui o te makuku, me te hanganga o ngā paipa ki te kaha whakawhiti wera. I roto i ngā pūnaha poutū, ko te kounga o te keri me te hohonu o te keri ka whakatau i te ātete wera. I roto i te wā, ka pāngia te oneone e te "nekehanga wera" mena kāore te hoahoa i te taurite i waenga i te whakamahana me te whakamatao.
b) Te Kounga Wai me te Tauine
I te whakamahinga tika, ka taea e te nui o te kohuke te whakapūkara i ngā paipa me ngā whakawhiti wera. Ka whakaitihia te pai o te whakawhiti wera e te whakapūkara, ā, ka whakanuia hoki te hiahia mō te mana papu.
c) Hoahoa Tohatoha Wera
Ko ngā pūnaha whakamahana papa hihi e hiahia ana kia iti ake te pāmahana e tukuna ana, kia pai ai mō ngā papu wera, kia piki ake ai hoki te COP. I tetahi atu taha, ka taea e ngā whakamahana pāmahana teitei te whakaiti i te whai huatanga mena me whakaputa e te pūnaha he wai wera i te pāmahana teitei ake.
d) Rautaki Whakahaere me te Tautuhinga
Mā te whakahaere pai—pērā i te whakarerekētanga o te kaha, te whakatikatika i te huarere, me te whakatikatika i te pihi whakamahana—ka nui ake te whakanui ake i te SPF.
e) Te Tiaki me te Āhua o ngā Wāhanga
Mā ngā tātari paru, ngā turuturu o te wai whakamatao, ngā papu tawhito, ngā pūoko rānei kāore i te whakatikatikaina, ka puta te āhua "parau" o te pūnaha, ahakoa ko te raru kei tētahi wāhanga motuhake.
7. Ngā Taunakitanga mō te Whakapai ake i runga i ngā Hua Aromatawai
Whai muri i te aromatawai, me whakatakoto ngā mahi whai muri. Ko ētahi o ngā taunakitanga e kitea pinepine ana ko:
1. Arotauhia te pāmahana o te pūnaha kia iti rawa, me te whakatutuki tonu i ngā whakaritenga whakamarie.
2. Te whakahaere papu pai ake mā te VFD me te taurite rere hei whakaiti i te whakapaunga hiko.
3. Te horoi/te horoi i te whakawhiti wera i roto i te pūnaha whakamahi tika hei whakakore i te paru, te matotoru rānei.
4. Whakapai ake i te whakamarumaru o ngā paipa i roto i te whatunga tohatoha hei whakaiti i te ngaronga wera.
5. Te whakahou i te pūnaha (whakahou i te pūnaha) mēnā he nui rawa te rerekētanga o te mahi ki te hoahoa, tae atu ki te whakatikatika i te pūoko me te manatoko i te whirihoranga whakahaere.
6. Te aroturuki i runga i ngā au hei kite wawe i ngā hekenga o te mahi, hei tauira, he hekenga āta haere o te COP.
8. Whakamutunga
He tukanga nui te aromatawai i te mahi a te pūnaha whakamahana waiariki hei whakarite i tōna whai huatanga mō te wā roa, tōna pono, me tōna mahi ōhanga. Me ine i ngā tawhā pēnei i te COP, SPF, ΔT, te whakapaunga mana papu, me ngā tohu pono me ngā taputapu tika, ā, me tātarihia i ia wā. He pānga nui ngā āhuatanga hangarau pēnei i te āhua o te oneone, te kounga o te wai, te hoahoa tohatoha wera, ngā rautaki whakahaere, me ngā mahi tiaki. Mā te aromatawai tika me te whai i te whai ake kua whakaritea, ka taea e ngā pūnaha whakamahana waiariki te whakaora i te kaha nui me te tautoko i te whakawhiti ki te kaha ma.
Ki te hiahia koe, ka taea e au te whakarerekē i tēnei tuhinga ki tētahi horopaki motuhake (hei tauira, mō ngā whare noho, ngā whare tari, ngā whare kati kōtuhi ahuwhenua, ngā whakaurunga whakamahi tika rānei i ngā rohe waiariki) me te tāpiri i ngā tauira o ngā tataunga COP/SPF i runga i ngā raraunga ine.
