Bright SPARC: ka taea e ngā kaipūtaiao o MIT te whakatinana i te mana hanumi?

Ka whakamahia e mātou ēnei hei hoatu i te wheako pai rawa atu ki a koe. Ki te whakamahi tonu koe i tā mātou paetukutuku, ka whakaaro mātou e pai ana koe ki te whiwhi i ngā pihikete katoa i runga i tēnei paetukutuku.

Kei te haumi te kamupene hinu Itari a Eni i te $50 miriona ki Commonwealth Fusion Systems, he kamupene matua nō MIT e mahi tahi ana me te whare wānanga ki te whakawhanake i ngā aukume superconducting hei whakaputa i te pūngao waro-kore i roto i tētahi whakamātautau mana hanumi e kiia nei ko SPARC. Ka whiwhi a Julian Turner i ngā kōrero a te Tumu Whakarae, a Robert Mumgaard.

I roto i ngā whare tapu o te Whare Wānanga Hangarau o Massachusetts (MIT) kei te haere tonu tētahi hurihanga pūngao. Whai muri i ngā tekau tau o te ahunga whakamua, e whakapono ana ngā kaipūtaiao kua rite te mana hanumi ki te kī i tōna rā, ā, tera pea ka taea te whakatutuki i te kapu tapu o te pūngao mutunga kore, kore mura, kore-waro.

E tautoko ana a Eni, te kamupene hiko nui o Itari, i tēnei tumanako, mā te haumi i te €50m ($62m) ki tētahi kaupapa mahi tahi me te Plasma Fusion and Science Center (PSFC) a MIT me te kamupene tūmataiti Commonwealth Fusion Systems (CFS), e whai ana kia tere ake te tuku i te hiko hanumi ki te whatunga hiko i roto i te 15 tau noa iho.

Ko te whakahaere i te hanumi, te tukanga e whakakaha ana i te rā me ngā whetū, kua whakaroahia e te raruraru tawhito: ahakoa he nui te pūngao e tukuna ana e te mahi, ka taea anake te mahi i ngā pāmahana tino nui o ngā miriona nekehanga Celsius, he wera ake i te pokapū o te rā, ā, he wera rawa hoki mō tētahi rauemi totoka.

Nā te wero o te herenga o ngā wahie hanumi i roto i ēnei āhuatanga tino kino, tae noa mai ki tēnei wā, kua iti haere te kaha o ngā whakamātautau mana hanumi, ā, he iti iho te kaha e whakaputaina ana i te mea e hiahiatia ana hei pupuri i ngā tauhohenga hanumi, nō reira kāore e taea te whakaputa hiko mō te whatunga hiko.

"Kua tino rangahauhia te rangahau hanumi i ngā tekau tau kua pahure ake nei, ā, kua hua ake ngā whanaketanga o te māramatanga pūtaiao me ngā hangarau mō te mana hanumi," te kī a te Tumu Whakarae o CFS, a Robert Mumgaard.

"Kei te hokohoko a CFS i te hanumi mā te whakamahi i te huarahi mara-teitei, e whakawhanake ana mātou i ngā aukume mara-teitei hou hei hanga i ngā taputapu hanumi iti ake mā te whakamahi i te huarahi ahupūngao rite tonu ki ngā kaupapa kāwanatanga nui ake. Hei whakatutuki i tēnei, ka mahi tahi a CFS me MIT i roto i tētahi kaupapa mahi tahi, ka tīmata ki te whakawhanake i ngā aukume hou."

Ka whakamahia e te taputapu SPARC ngā papa aukume kaha hei pupuri i te plasma wera – he hupa hau o ngā matūriki iti-atomic – kia kore ai e pā atu ki tētahi wāhanga o te rūma korehau āhua tōnati.

"Ko te wero matua ko te waihanga i tētahi plasma i ngā āhuatanga e puta ai te hanumitanga kia nui ake ai te mana e whakaputaina ana i tana e pau ana," te whakamārama a Mumgaard. "E whakawhirinaki nui ana tēnei ki tētahi wāhanga iti o te ahupūngao e mōhiotia ana ko te ahupūngao plasma."

Kua hangaia tēnei whakamātautau kiato hei whakaputa i te 100MW o te wera i roto i ngā pātī tekau-hekona, he rite te nui o te hiko e whakamahia ana e tētahi tāone iti. Engari, i te mea he whakamātautau a SPARC, kāore e uru atu ngā pūnaha hei huri i te hiko hanumi hei hiko.

E matapaetia ana e ngā kaipūtaiao o MIT ka nui ake i te rua te kaha o te wera o te plasma, ā, ka tutuki i tēnei te taumata hangarau whakamutunga: te kaha pai mai i te hanumi.

"Ka puta te hanumitanga i roto i te plasma e puritia ana, e whakamahanatia ana mā te whakamahi i ngā papa aukume," te kī a Mumgaard. "He rite tēnei ki tētahi pounamu aukume. He tino hononga te kaha o te papa aukume ki te kaha o te pounamu aukume ki te whakamahana i te plasma kia taea ai e ia te eke ki ngā āhuatanga hanumitanga."

"Nō reira, ki te taea e tātou te hanga i ngā aukume kaha, ka taea e tātou te hanga i ngā plasma ka taea te wera ake, te kikī ake hoki mā te whakamahi i te iti o te mana hei pupuri. Ā, mā ngā plasma pai ake, ka taea e tātou te whakaiti ake i ngā taputapu, ā, he ngāwari ake te hanga me te whakawhanake."

"Mā ngā superconductors pāmahana-tiketike, he taputapu hou tā mātou hei hanga i ngā papa aukume kaha-tiketike, ā, nō reira, he pai ake, he iti ake hoki ngā pounamu aukume. E whakapono ana mātou mā tēnei ka tere ake tā mātou mahi hanumi."

Kei te kōrero a Mumgaard mō tētahi whakatupuranga hou o ngā aukume hiko nui-pūngao e kaha ana ki te whakaputa i tētahi papa aukume e rua te kaha ake i tērā e whakamahia ana i roto i tētahi whakamātautau hanumi o nāianei, e āhei ai te pikinga ake i te mana neke atu i te tekau ngā wā mō ia rahi.

He mea hanga mai i te rīpene maitai kua pania ki tētahi matū e kiia nei ko te yttrium-barium-copper oxide (YBCO), mā ngā aukume superconducting hou ka taea e te SPARC te whakaputa i te putanga mana hanumi tata ki te haurima o te ITER engari i roto i tētahi taputapu he 1/65 noa iho te rōrahi.

Mā te whakaiti i te rahi, te utu, te wātaka me te uauatanga o te whakahaere e hiahiatia ana hei hanga i ngā taputapu hiko hanumi kupenga, ka taea hoki e ngā aukume YBCO ngā huarahi mātauranga me ngā huarahi arumoni hou ki te hiko hanumi.

"He tokamaks te SPARC me te ITER, he momo pounamu aukume motuhake i ahu mai i te pūtaiao taketake whānui o te whanaketanga ahupūngao plasma i roto i ngā tekau tau," te whakamārama a Mumgaard.

"Ka whakamahia e te SPARC te whakatupuranga hou o ngā aukume hiko wera-teitei (HTS) e āhei ai te hanga i tētahi papa aukume teitei ake, ka puta ai te mahi hanumi kua whakaritea i te rahi iti ake."

"E whakapono ana mātou he wāhanga matua tēnei mō te whakatutuki i te hanumitanga i runga i te wā e pā ana ki te āhuarangi, ā, he hua e ātaahua ana ki te taha ōhanga."

Mō ngā wā me te whai huatanga arumoni, he whanaketanga a SPARC nō tētahi hoahoa tokamak kua akohia, kua whakatikatikaina hoki mō ngā tekau tau, tae atu ki ngā mahi i MIT i tīmata i te tekau tau 1970.

Ko te whāinga o te whakamātautau SPARC he whakatakoto i te ara mō te whare hiko hanumi tuatahi o te ao me te kaha o te 200MW o te hiko, he rite ki te nuinga o ngā tipu hiko arumoni.

Ahakoa te whānui o te whakahē mō te mana hanumi – kei a Eni te tirohanga whakamua kia noho ko ia te kamupene hinu tuatahi o te ao ki te haumi nui ki roto – e whakapono ana ngā kaitautoko ka taea e te tikanga te whakatutuki i tētahi wāhanga nui o ngā hiahia pūngao e tipu haere ana o te ao, me te whakaiti i ngā tukunga hau kati kōtuhi.

Mā te iti o te tauine e taea ana e ngā aukume superconducting hou ka taea pea te ara tere ake, iti ake te utu ki te hiko mai i te pūngao hanumi i runga i te whatunga hiko.

E ai ki ngā whakatau tata a Eni, e $3 piriona te utu hei whakawhanake i tētahi tauhohenga hanumi 200MW i te tau 2033. Ko te kaupapa ITER, he mahi tahi i waenganui i a Ūropi, te US, Haina, Īnia, Hapani, Rūhia me Kōrea ki te Tonga, kua tata ki te haurua o tana whāinga kia puta he whakamātautau plasma wera-rahi tuatahi i te tau 2025 me te hanumi mana-katoa tuatahi i te tau 2035, ā, he tata ki te €20 piriona te tahua. Pērā i a SPARC, kua hangaia a ITER kia kaua e whakaputa hiko.

Nā, i te mea ka neke atu te whatunga hiko o Amerika mai i ngā tipu hiko waro, hiko wehenga rānei 2GW-3GW kotahi ki ngā tipu hiko kei roto i te awhe 100MW-500MW, ka taea e te hiko hanumi te whakataetae i roto i tētahi mākete uaua - ā, ki te pērā, āhea?

"Kei te haere tonu ngā rangahau hei mahi, engari e mōhiotia ana ngā wero, kei te tohu ngā mahi auaha hou i te huarahi hei whakatere i ngā mea, kei te arotahi ngā kaitākaro hou pēnei i a CFS ki ngā raruraru me te arotahi arumoni, ā, kua pakari te pūtaiao taketake," te kī a Mumgaard.

"E whakapono ana mātou he tata ake te whakakotahitanga i tā te nuinga o te tangata e whakaaro nei. Kia mataara tonu." jQuery( tuhinga ).ready(function() { /* Kamupene carousel */ jQuery('.carousel').slick({ ira: pono, mutunga kore: pono, tere: 300, lazyLoad: 'ondemand', slidesToShow: 1, slidesToScroll: 1, adaptiveHeight: pono }); });

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Te wā tuku: Hakihea-18-2019
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