I tēnei wā, he maha ngā whenua kei te kaha haere tonu te rangahau hauwai hou, ā, kei te uaua te mahi hangarau ki te wikitoria. I te whānui haere tonu o te tauine o te hanga pūngao hauwai me te hanganga rokiroki me te kawe, he nui hoki te wāhi hei heke iho mō te utu o te pūngao hauwai. E whakaatu ana ngā rangahau e whakaarohia ana ka heke te utu whānui o te mekameka umanga pūngao hauwai mā te haurua i te tau 2030. E ai ki te pūrongo i tukuna ngātahitia e te International Hydrogen Energy Commission me McKinsey, neke atu i te 30 ngā whenua me ngā rohe kua tukuna te mahere mō te whanaketanga pūngao hauwai, ā, ka eke te haumitanga o te ao ki ngā kaupapa pūngao hauwai ki te 300 piriona tāra US i te tau 2030.
He puranga pūtau wahie hauwai he mea tito mai i ngā pūtau pūtau wahie maha kua whakarārangihia kia raupapa.Ka taupatupatuhia te pereti bipolar me te membrane electrode MEA ki tētahi taha, ā, ka whakauruhia ngā hiri ki waenganui i ia monomer. Whai muri i te pēhitanga e ngā pereti o mua me muri, ka whakamaua, ka herea ki ngā tīwiri hei hanga i tētahi puranga pūtau wahie hauwai.
Ka taupatupatuhia te pereti bipolar me te membrane electrode MEA ki tētahi taha, ā, ka whakauruhia ngā hiri ki waenganui i ia monomer. Whai muri i te pēhitanga e ngā pereti o mua me muri, ka herea, ka herea ki ngā tīwiri hei hanga i tētahi puranga pūtau wahie hauwai. I tēnei wā, ko te tono tūturu ko tepereti bipolar i hangaia ki te karāpeti horihori.He pai te kawe hiko me te ātete waikura o te pereti bipolar i hangaia mai i tēnei momo rauemi. Heoi, nā te mea he pai te aukati hau o te pereti bipolar, he maha ngā tukanga whakaputa e hiahiatia ana mō te tukanga hanga pēnei i te whakakī i te kapia, te whakawaro, te whakakāwhata me te tukatuka mara rere i muri mai, nō reira he uaua te tukanga hanga, ā, he tino nui te utu. Kua waiho hei take nui e aukati ana i te whakamahinga o te pūtau wahie.
Kiriuhi whakawhiti pūmuaKa taea e te pūtau wahie (PEMFC) te huri tika i te pūngao matū ki te pūngao hiko i roto i te tikanga isothermal me te hikohiko. Kāore e herea e te huringa Carnot, he tere whakawhiti pūngao teitei (40% ~ 60%), ā, he ma, kāore hoki e poke (ko te hua he wai te nuinga). E kiia ana ko ia te pūnaha tuku hiko tuatahi whai hua me te ma i te rautau 21. Hei wāhanga hono o ngā pūtau takitahi i roto i te puranga PEMFC, ko te mahi matua a te pereti bipolar ko te wehe i te hononga hau i waenga i ngā pūtau, te tohatoha wahie me te waikura, te tautoko i te irahiko membrane me te hono i ngā pūtau takitahi i roto i te raupapa hei hanga i te ara iahiko hiko.
Wā tuku: Hanuere-10-2022