Te Hoahoa me te Whakawhanake i ngā Tāhūpaina mō ngā Whare Hiko Pūngao Ā-Wharewha
He pou matua ngā tipu hiko waiariki o te whakawhiti pūngao nā te mea ka taea e rātou te tuku hiko pumau (kawenga turanga) me te iti o ngā tukunga. Kei muri i te pono o ngā tipu hiko waiariki kei reira tētahi wāhanga matua e whakatau ana i te nui o te pūngao waiariki ka taea te huri hei hiko: ko te tāpine. Kāore i rite ki ngā tāpine mamaoa i roto i ngā tipu hiko waiariki tikanga, ka tūtaki ngā tāpine waiariki ki tētahi wai mahi ahurei: he maha ngā wā kei roto he ranunga o te mamaoa me te wai, kei roto ngā hau kāore e taea te whakapūpū, ā, kei roto ngā matū rewa ka taea te waikura, te horo, me te whakatakotoranga (tauine). Nō reira, ko te hoahoa me te whakawhanake i ngā tāpine waiariki me whai huarahi maha-mātauranga e whakauru ana i te thermodynamics, te fluid dynamics, ngā rauemi, te hanga, me ngā rautaki whakahaere.
Ngā Āhuatanga o ngā Rauemi Pūngao me ō rātou Pānga ki ngā Tāpoi
He rerekē te awhe pāmahana me ngā āhuatanga o te puna waiariki. Ko ngā puna waiariki pāmahana teitei (>200°C) ka puta he mamaoa maroke, he wai rānei e kaha ana ki te mamaoa i muri i te wehenga, ko ngā pāmahana waenga (150–200°C) ka puta he ranunga e rua-wāhanga (kohu-wai). Ko te noho mai o te wai wai, ngā pata, me ngā matūriki totoka ka nui ake te tūponotanga o te horo i ngā mata o te tāpine. Hei tāpiri, ka taea e ngā waiariki te whai i te H₂S, te CO₂, te pūhaumāota, te silica, me te boron, ka taea te whakapūmau i te waikura me te tauine o ngā wāhanga tāpine me ō rātou pūnaha tautoko.
Ka pāngia hoki te whiriwhiri i te whirihoranga o te tipu e ngā rerekētanga o te hanganga wai me ngā āhuatanga: te mamaoa maroke, te mamaoa tere (tere kotahi/tere takirua), te huringa rua rānei (ORC/Kalina). Me whai momo tāpine rerekē ia whirihoranga me ngā rautaki hoahoa motuhake mō te pēhanga urunga, te kounga o te mamaoa, te tere rere papatipu, me ngā whāinga whai hua.
Ngā Momo Tāpoi i roto i ngā Whare Hiko Pūngao Geothermal
1. Tāpine mamaoa mō te mamaoa maroke
Ka whakamahia ina puta he mamaoa maroke i te puna. Ko ōna painga ko te kaupapa māmā me te tino whai hua. Ko ngā wero matua ko te whakahaere i te waikura (hei tauira, nā te H₂S) me te whakahaere hau kāore e taea te whakapūpū.
2. Tāpine mamaoa mō te mamaoa tere
Ko te mea tino kitea i roto i ngā mara waiariki. Ka wehea ngā waiariki i roto i tētahi wehewehe; ka peia e te mamaoa tētahi tāpine. I roto i te mura rua, ka taea te whakamahi i te mamaoa mai i ngā pēhanga teitei me te iti hei whakanui ake i te putanga. Ka piki ake ngā wero hoahoa nā ngā rerekētanga o te kawenga, te kounga o te mamaoa kāore i te tino pai, me te kaha pea o te kawe pata mai i te wehewehe.
3. Tāpine i runga i te huringa rua (ORC/Kalina)
Mō ngā pāmahana waenga, mō te wā rānei kāore e taea te mimiti tika o te wai tote. Ka whakahaerehia te tāpine me ngā wai rauropi (hei tauira, te isobutane, te pentane) me ngā ranunga haukini-wai rānei. He rite tonu te hoahoa ki te tāpine huringa Rankine rauropi, engari me aro tonu ki te haumaru, te hiri, me te hototahitanga o ngā rauemi.
Ngā Mātāpono Hoahoa Āhuarangi me ngā Wāhanga Tīpuna
Ka tīmata te hoahoa o ngā tāpine hiko mā te whiriwhiri i tētahi kaupapa: te whakatere, te tauhohenga, te whakakotahi rānei. He maha ngā wā ka whakamahia e ngā tāpine hiko waiariki he whirihoranga maha-wāhanga hei tango mārire i te pūngao mai i te mamaoa pēhanga teitei ki te pēhanga o te pūngao whakapūmau. Ko ngā tawhā matua e whakaarohia ana ko:
– Te ōwehenga pēhanga me te hekenga enthalpy: ka whakatau i te maha o ngā wāhanga me te rahi o ngā mata.
– Tere motuhake: ka ārahi i te kōwhiringa o te momo tāpine (tuaka me te radial) me te āhua o te atamira.
– Te kounga o te mamaoa me te haurua makuku: ka nui ake te makuku o te mamaoa i te wāhanga whakamutunga, ka nui ake te mōrearea o te horo me te hekenga o te whai huatanga nā ngā ngaronga.
Ko te whanaketanga o ēnei rā e whakawhirinaki nui ana ki ngā whakatauira CFD (Computational Fluid Dynamics) hei arotau i ngā kōtaha o te mata, ngā koki tomo/puta, me te whakaiti i ngā ngaronga nā te wehenga rere me te aueue. Hei tāpiri, mā te tātari 3D ka taea e ngā kaihoahoa te whakaiti i ngā ngaronga rere tuarua i ngā pito o te mata me ngā rohe pokapū, he mea nui i roto i ngā tāwhana nui.
Ngā Wero Motuhake: Te Horoi, te Waikura, me te Tauine
E toru ngā "hoariri" matua e pā ana ki ngā tāhū waiariki:
1. Te horonga nā ngā pata me ngā matūriki
I ngā pēhanga iti, ka whakapūpū te mamaoa hei pata wai. Ka taea e ngā pata tere-rahi te whakangaro i te taha mua o ngā mata. Ko te hoahoa whakaitiiti ko te whakamahi i ngā awaawa waikeri, te whakahaere pāmahana o te whakapūpū, me te whiriwhiri i ngā rauemi me ngā paninga ātete-horo.
2. Te waikura matū
Ka taea e te H₂S, te CO₂, me te pūhaumāota te whakararu i te waikura o te rua me te pakaru o te waikura ahotea. Nō reira, he mea nui te whiriwhiri rauemi (hei tauira, ētahi maitai koranu, maitai kore waikura, rauemi rānei he parenga mata). Me whai whakaaro hoki te hoahoa ki ngā wāhi ngoikore pērā i te pūtake o te mata kōpae, ngā pūtu, me te hiri.
3. Te whakapūtanga/te whakapūtanga
Ka taea e te silica me ētahi atu kohuke te whakatakotoranga ki runga i ngā pūwero, ngā mata, ngā ara rere rānei, ka whakarerekē i te āhua me te whakaiti i te whai huatanga. Ko ngā rautaki whakahaere ko te whakatikatika i te wai tote, te whakahaere matū, te hoahoa wehewehe tika, me ngā tikanga horoi ā-wā.
Ngā Rauemi, te Hanga, me te Hangarau Paninga
Ko te kōwhiringa rauemi o ngā tāhū waiariki whenua ehara i te mea ko te kaha ā-ringa anake engari ko te ātete matū hoki. Mō ngā rotor me ngā mata, he mea nui te whakakotahitanga o te pakari, te ātete ngenge, me te ātete waikura. I roto i te mahi, ka taea e ngā kaihanga te whakatinana i:
– He kowiri tira, he koranu rānei, he mea āta tiaki mō ngā wāhanga e pā tika ana ki te mamaoa.
– He paninga ārai-horo/waikura i te wāhanga whakamutunga o te mata.
– Te whakapakeketanga o te mata i ngā wāhi e pāngia ana e te maturuturunga wai.
Mai i te tirohanga hangahanga, ko te tika o te āhua o te mata e whakatau ana i te whai huatanga. Ko te miihini CNC 5-tuaka, te tirotiro CMM, me te taurite rotor tere-teitei te paerewa. I ētahi whanaketanga, kei te tūhuratia te hanga taapiri mō ngā wāhanga uaua, ahakoa me whakamana tonu tōna tono ki ngā wāhanga hurihuri nui.
Whakaurunga Pūnaha: Pūwhakamātautau, NCG, me te Mana Whakahaere
Ehara ngā tāpine i te wāhanga takitahi. He nui te pānga o te pēhanga hau e puta mai ana i te pūwhakapūngao ki te whai huatanga o te tāpine. I roto i ngā tipu hiko waiariki, ka taea e ngā hau kore-pūpūngao (NCG) pēnei i te CO₂ te whakanui ake i te pēhanga pūwhakapūngao mena kāore i te rawaka te pūnaha tango hau—he pānga tika e whakaiti ana i te mana o te tāpine. Nō reira, me whakauru te hoahoa tāpine ki:
– Pūnaha whakapūmau (whakapūmau pa atu, whakapūmau mata rānei)
– Pūnaha tango korehau me te hau (pūwero mamaoa, papu korehau mowhiti wai, te whakakotahitanga rānei)
– Mana whakahaere matua me te kawana mō te pumau auau me te whakahaere kawenga
– Te parenga mai i te wai e pupuhi ana kia kore ai te wai e uru ki roto i te tāpine i ngā wā whakawhiti
Ko ngā whanaketanga hou e aro nui ana ki ngā taputapu matihiko hei aroturuki i te wiri, te pāmahana o te peera, te pēhanga, me te whai huatanga. Mā ngā raraunga o mua, ka taea e ngā kaiwhakahaere te whakatinana i te tiaki matapae hei whakaiti i te wā kore mahi.
Hoahoa Pono: Te Wiri, Ngā Peera, me te Hiri
Ka mahi ngā tāpine i ngā tere hurihuri teitei, ā, ka pāngia e ngā kawenga wera me ngā kawenga miihini hurihuri. Me tātari hurihuri kia kore ai e puta he haruru kino i roto i te awhe mahi. Me kaha ngā peera (ngā peera hautaka me ngā peera pana) ki te whakahaere i ngā kawenga tuaka nā ngā rerekētanga pēhanga me te pupuri tonu i te pumau o te rotor.
He mea nui anō hoki te hiri nā te mea ka whakaitihia te pai o te mahi a ngā turuturu mamaoa, ā, ka uru mai ngā poke. He whānuitia te whakamahinga o ngā hiri rūpahu, engari me whakarerekē te hoahoa kia ātete ai ki te putunga me te pakaru.
Te Aronga Whakawhanake i te Pūwero Taiao
Kei te ahu whakamua ngā mahi auaha o ngā tāpine waiariki i roto i ētahi huarahi matua. Tuatahi, ko ngā whakapainga whai hua mā te arotautanga ā-rangi 3D, ngā whakapainga mutunga-wāhanga, me te whakaiti i te ngaronga o roto. Tuarua, ko ngā whakapainga pakari mā roto i ngā rauemi hou, ngā paninga kaha ake, me ngā hoahoa e ātete ana ki te mamaoa mākū. Tuatoru, ko te mamati o ngā mahi mā roto i ngā pūoko wā-tūturu, ngā tātaritanga mahi, me ngā pūnaha whakahaere e urutau ana ki ngā āhuatanga rerekē o te puna.
Hei tāpiri atu ki tēnā, ko te ia o te whakamahi i ngā pūtake pāmahana-waenga kei te akiaki i te whanaketanga o ngā tāpine ORC kiato ake, kia whai hua ake hoki. I tētahi atu taha, ko ngā ariā waiariki ranu—hei tauira, te whakaurunga ki ngā pūnaha rokiroki wera para ahumahi, ki ngā pūnaha rokiroki wera rānei—kei te whakatuwhera i te hiahia mō ngā tāpine e ngāwari ana ki ngā rerekētanga kawenga.
Te Katinga
He tukanga uaua te hoahoa me te whakawhanake i ngā tāpine mō ngā tipu hiko waiariki, e whakataurite ana i te whai huatanga o te pūngao, te ātete ki ngā taiao waikura me te waikura, me te pono o te mahi mō te wā roa. Ko te angitu o tētahi tāpine waiariki ehara i te mea ko te āhua o te mata, ko te maha rānei o ngā wāhanga anake e whakatauhia ana, engari ko te whakaurunga o te pūnaha wehewehe, te whakapūmau, te whakahaere NCG, te rautaki rauemi, me te whakahaere mahi. Me ngā whanaketanga o te CFD, te hangarau rauemi, me te aroturuki matihiko, kei te whanake tonu ngā tāpine waiariki kia pai ake, kia roa, kia ohanga hoki—e tautoko ana i te tūranga o te waiariki hei puna hiko pono, ma a muri ake nei.
