Te Hiranga o te Mahi Whakarewa i roto i te Whakaputa Pūngao Whakahou
Ko te whakawhiti ki te pūngao hou ka kōrerohia i roto i ngā hangarau whakaputa - ngā panera rā e piki haere ana te whai hua, ngā tāpoi hau e teitei haere ana, ngā pākahiko e piki haere ana te kaha. Engari he pūtake kei te warewarehia: te mahi whakarewa, te pūtaiao me te hangarau o te tango, te whakamahine, te whakakotahi, te whakamahana wera, me te whanonga o ngā konganuku me ngā rauemi e pā ana. Kei muri i ia megawatt o te hiko matomato e whakaputaina ana he raupapa o ngā whakataunga whakarewa e whakatau ana mēnā he ātete ki te waikura tetahi wāhanga, he kaha ki te tu atu i ngā kawenga, he kaha ki te mahi i ngā pāmahana tino nui, ā, he ohanga mō te whakaputa papatipu. Arā, ko te angitu o te pūngao hou ehara i te mea ko "te hopu i te pūngao anake," engari ko "ngā rauemi ka roa, ka mahi pai" mō te wā roa.
Ko te whakarewa te pou tuarā o te hanganga pūngao hou
E hiahiatia ana he hanganga nui, he hanganga roa hoki mō te pūngao hou: ngā pāmu hau moana, ngā raina tuku hiko teitei, ngā pūnaha rokiroki pūngao, me ngā whare whakaputa hauwai. E whakawhirinaki ana ēnei katoa ki ngā konganuku—te maitai, te konumohe, te parahi, te nikara, te taitīnati, tae noa ki ngā huānga whenua onge—me tutuki i ngā paearu pakari: te kaha miihini, te ātete ki te ngenge, te ātete ki te waikura, te kawe hiko, me te ngāwari o te hanga.
He mahi nui tā te mahi whakarewa mai i ngā wāhanga tuatahi, arā, te whiriwhiri i te ara whakaputa: ahakoa he mea hanga te wāhanga mā te whakarewa, te hanga, te whakarewa, te mahi whakarewa paura, te hanga tāpiri rānei (tā 3D). Ka pā ia ara ki te hanganga moroiti o te whakarewa (te rahi o te kōhao, ngā wāhanga, te ua), ā, koinei te mea e whakatau ana i te mahi. Hei tauira, ko te whakapai ake i te ātete ngenge i roto i ngā toki tāpoi me ngā pūtu taumaha-teitei, ehara i te mea ko ngā āhuatanga hoahoa anake engari ko te hanganga moroiti me te whakahaere hapa ā-roto.
Te tūranga o te mahi whakarewa i roto i ngā tāhū hau: mai i te pourewa ki te whakaputa hiko
He tauira mārama ngā tāwhana hau mō te whakatau a te hangarau whakarewa i te pono. He whānuitia te whakamahinga o ngā pourewa me ngā turanga mō te maitai nā te mea he kaha, he iti hoki te utu. Engari he tino kaha te taiao whakahaere o ngā tāwhana—ina koa i tai—: te wai moana, ngā huringa mākū-maroke, me ngā kawenga hihiri. Koinei te wāhi e whai wāhi ai te hangarau whakarewa, tae atu ki te kōwhiringa o te hanganga maitai, te hoahoa koranu, ngā tikanga whakarewa, me ngā rautaki tiaki waikura pērā i te paninga, te whakapūmau, ngā pūnaha katote rānei.
Ko ngā wāhanga tino nui ko ngā pouaka miihini, ngā peera, me ngā pou, e pāngia ana e ngā kawenga maha i roto i te roanga o te wā e mahi ana. Ka puta te ngoikore o te ngenge mena he rerekē te kounga o te maitai, he kore rānei e tika te maimoatanga wera. Ko te mahi whakarewa he mea pēnei i te whakakāpū, te whakanitiriti, te maimoatanga mata rānei hei whakanui ake i te pakeke me te ātete ki te kakahu me te kore e whakaiti i te pakari o te rauemi. Hei tāpiri, me whakamahi aukume tuturu ngā miihini whakaputa hou i roto i ētahi hoahoa, e whakawhirinaki ana ki ngā huānga whenua onge (hei tauira, te neodymium). Ka puta ngā wero whakarewa i roto i te whakamahine, te hanga koranu aukume, me te whakawhanake i ngā huarahi kē atu hei whakaiti i te whakawhirinaki ki ngā rauemi nui.
Ngā panera rā me te mahi whakarewa: ehara i te mea ko te silicon anake
Ina kōrerohia ngā photovoltaics, he maha ngā tāngata e aro ana ki te silicon. Heoi, he mea nui tonu te mahi whakarewa i roto i ētahi paparanga me ngā wāhanga. He whānuitia te whakamahinga o te konumohe mō ngā anga mōrahi nā tōna mama me tōna ātete ki te waikura. He mahi nui tā te parahi ki te kawe hiko, ko te hiriwa ia e whakamahia tonutia ana i roto i ētahi hangarau pūtau rā hei rauemi whakapā (ahakoa kei te mahi te umanga ki te whakaiti i tōna whakamahinga nā te utu). Ko tētahi panonitanga ki te hanganga whakapiri whakarewa, te tikanga sintering, te paninga mata rānei he take whakarewa e pā ana ki te ātete, te whai huatanga, me te roa o te ora o te mōrahi.
Hei tāpiritanga, me whai hanganga tautoko me ngā arai mō ngā pūnaha rā nui e tūpono ana ki ngā āhuatanga o te rangi mō ngā tekau tau. Mā te hangarau whakarewa ka taea te whiriwhiri i te maitai hanganga tika, te tiaki waikura tika, me ngā tikanga hanga e whakaiti ana i ngā utu me te kore e whakararu i te haumaru.
Ngā pākahiko me te rokiroki pūngao: te whakarewa i te ngako o te matū hiko
Ko te penapena pūngao te mea nui ki te whakawhiti pūngao whakahou nā te āhua pōturi o te hiko o te rā me te hau. I roto i ngā pākahiko lithium-ion, ko te mahi whakarewa e uru ana ki te whakamahinga o ngā rauemi katote e ahu mai ana i te nikara, te konupora, me te manganese, ngā kaikohi iahiko parahi me te konumohe, me ngā anga me ngā hononga. He mea nui te whakahaere i te parakore me te hanganga tioata o ngā rauemi hohe mō te kaha, te pumau wera, me te roa o te huringa.
Hei tāpiri atu ki tēnā, ko te mahi whakarewa te mea nui ki ngā take pumau mā te hangarua pākahiko. Ka whakamahia ngā tukanga pyrometallurgy (whakarewa) me te hydrometallurgy (whakarewa matū) hei whakaora i ngā konganuku utu nui pēnei i te nikara, te konupora, me te parahi. Ka taea e ngā mahi auaha whakarewa te whakanui ake i ngā tere whakaora, te whakaiti i te pūngao tukanga, me te whakaiti i ngā para kino. I te piki haere o te maha o ngā pākahiko e tae ana ki te mutunga o te ora, ka nui haere te hiranga o ngā āheinga whakarewa ki te hanga mekameka tuku porowhita.
Hauwai matomato: ngā rauemi hauwai ātete-waikura, pakarukaru hoki
Ko te hauwai matomato—i hangaia mai i te hikohiko o te wai mā te whakamahi i te hiko hou—e kitea ana he otinga mō ngā rāngai uaua ki te hiko pēnei i te ahumahi taumaha me te kawe waka tawhiti. Heoi, he nui ngā wero rauemi o te hauwai, ko tētahi o ēnei ko te pakarukaru o te hauwai (te pakarukaru nā te urunga o te hauwai). Me hanga ngā paipa, ngā tāke, ngā takirere, me ngā wāhanga hikohiko ki ngā rauemi e kaha ana ki te tu atu ki ngā taiao whai hauwai, ki ngā pēhanga teitei, me ngā āhuatanga waikura.
Mā te hangarau whakarewa ka āwhina i te whiriwhiri i te koranu tika (hei tauira, ngā maitai motuhake, ngā maitai kore waikura, ngā koranu nikara rānei), ka whakahaere i ngā maimoatanga wera, ka whakawhanake i ngā paninga me ngā hoahoa hanganga moroiti e whakaiti ana i te horapa o te hauwai. I te taha o te electrolyzer, ko te whiriwhiri i ngā rauemi whakakorikori me te hikohiko—tae atu ki ngā konganuku utu nui i roto i ētahi hangarau—e hono tata ana hoki ki te pūtaiao rauemi me te hangarau whakarewa hei whakataurite i te mahi me te utu.
Ngā whatunga hiko me te tuku: te kawe hiko, te kaha, me te manawanui
Me whai whatunga hiko whānui ake, pakari ake hoki mō te pūngao hou hei tuku hiko mai i ngā wāhi whakaputa (he maha ngā wā ka tawhiti atu i ngā pokapū kawenga). Koinei te wāhi e whai wāhi nui ai te parahi me te konumohe hei kawe hiko. Ko te hangarau whakarewa te mea e whakatau ana i te taurite i waenga i te kawe hiko me te kaha kume, inā koa i roto i ngā taura o runga e tu atu ana ki ngā kawenga miihini, ngā huringa pāmahana, me te waikura taiao.
Ka whakawhirinaki hoki ngā whakawhiti hiko, ngā whakaputa hiko, me ngā motuka ki ngā rauemi aukume me ngā rauemi kawe hiko kounga teitei. Ka āwhina te mahi whakarewa ki te whakapai ake i te whai huatanga mā te whakaiti i ngā mate matua mā te whakawhanake i ngā maitai hiko me ngā kakano tioata kua arotauhia.
Te whakaiti i te tapuwae waro mā te mahi whakarewa matomato
He mea whakamīharo, ko te hanga whakarewa tuku iho—ina koa ko te maitai me te konumohe—he nui te takoha ki ngā tukunga o te ao. Nō reira, he wāhi nui anō hoki tā te mahi whakarewa ki te "whakama" i te umanga rauemi. He mea nui ngā auahatanga pēnei i te maitai waro-iti, te whakamahinga o te hauwai hei whakaiti, te whakanui ake i te pai o te oumu, me te hiko o te tukanga whakarewa. Waihoki, mō te konumohe, ko te whakanui ake i te pai o te hikohiko me te whakamahi i te hiko whakahou ka taea te whakaiti nui i te kaha o te waro mō ia tana o te hua.
Ka akiakihia hoki e te mahi whakarewa hou te hoahoa mō te hangarua: te whiriwhiri i ngā koranu he māmā ake te wehewehe, te whakaiti i ngā poke, me te whakanui ake i te whakamahinga o ngā para me te kore e whakararu i te kounga. Nā te mea he nui ngā rauemi e hiahiatia ana mō ngā hanganga pūngao whakahou, ko ia pikinga o te whai huatanga me te porowhita i roto i te rāngai whakarewa he pānga ā-tinana.
Te mekameka tuku me te manawanui o ngā rauemi nui
He maha ngā hangarau pūngao whakahou e hiahia ana ki ngā rauemi he ngoikore te tukunga—nā te mea kei roto i ngā rohe motuhake, he uaua te tukanga whakamahine, he nui rānei te pānga ki te taiao. Ka āwhina te mahi whakarewa i te aro ki ēnei take mā roto i ngā ara e rua: te whakakapinga (te whakawhanake i ngā koranu rerekē, i ngā rauemi rānei) me te tukatuka whai hua ake (te whakanui ake i ngā hua, te whakaiti i ngā whakaritenga parakore rawa, te whakapai ake rānei i te whakamahine).
Hei tauira, kei te haere tonu ngā rangahau hei whakaiti i te whakamahinga o ngā konganuku utu nui, onge rānei i roto i ngā aukume, ngā whakakorikori, me ngā pākahiko, me te kore e whakaiti i te mahi. I taua wā, ko ngā whakapainga i roto i te hangarau wehewehe me te whakamahine kei te whakahaere i te whakamahinga o ngā konganuku iti te kounga me ngā pūtake tuarua (para hiko, para ahumahi), ā, ka whakaiti i te whakawhirinaki ki ngā maina hou.
Te Katinga
Ko te pūngao whakahou e tautuhia ana ehara i te mea ko ngā auahatanga o te whakaputa hiko anake, engari ko te kaha hoki o ngā rauemi ki te mahi haumaru, whai hua, me te pumau. Kei te tata katoa ngā wāhanga o te mahi whakarewa: mai i ngā koranu maitai o te pourewa tāpine, ngā aukume whakaputa hiko, ngā anga o te papa rā, ngā rauemi pākahiko me te hangarua, tae atu ki ngā paipa me ngā tāke hauwai. Mā tēnei ka whakatau te mahi, te utu, te pono, me te pānga ki te taiao o ngā hangarau matomato.
I te pikinga ake o ngā whāinga tango waro o te ao, ka piki haere tonu te hiahia mō ngā konganuku me ngā koranu motuhake. Nō reira, ko te haumi ki ngā rangahau whakarewa—tae atu ki te whakarewa hangarua me te whakarewa waro-iti—ehara i te mea he tautoko noa iho, engari he mea matua hei whakarite i te whakawhiti tere, utu tika, me te pumau ki te pūngao whakahou. Mena ko te pūngao whakahou te heke mai, ko te whakarewa tētahi o ngā turanga tino nui e tautoko ana i a ia.
