ikehu neaa

Anter

• Nā pōmaikaʻi o ka hydropower
• Nā maikaʻi ʻole o ka hydropower
• Nā laʻana o ka mana uila
• Nā ʻano ikehu ʻē aʻe

ʻO ka ikehu neaa (i kapa ʻia ka ikehu wai a i ʻole hydropower) i loaʻa mai mahalo ʻia i ka ikehu kinetic a me ka ikehu hiki ke loaʻa o nā kahe wai (e like me nā kahawai a i ʻole nā ​​kahawai) a me nā kai eʻe.

ʻO ka ikehu Kinetic ka ikehu i loaʻa i kekahi kino mahalo i kāna neʻe. ʻO kahi laʻana, inā hilinaʻi mākou i kahi penikala i kahi pepa a paʻa mau ia, ʻaʻole lawe ka penikala i kekahi ikehu i ka pepa (ʻaʻohe ikehu kinetic).

Ma ka lima ʻē aʻe, inā paʻi mākou i ka pepa me ka piko o ka penikala, ʻo ia, neʻe mākou i ka wikiwiki, haki ka penikala i ka pepa mahalo i kona ikehu kinetic. No kēia kumu, hydropower ʻAʻole ia mai nā loko a i ʻole nā ​​loko iʻa, akā mai nā kino o ka wai e neʻe ana, e like me nā muliwai a me nā kai.

ʻO ka ikehu kūpono ka mea i loko o kahi mea ma muli o kona kūlana pili i loko o kahi ʻōnaehana. ʻO kahi laʻana, loaʻa i ka ʻāpala ma luna o kahi kumulāʻau ka ikehu hiki ke hāʻule, ʻo ia hoʻi, ʻoi aku ka nui o ka ikehu inā aia ke kiʻekiʻe o ka ʻāpala.

E hoʻohana i ka ikaika ikehu o ka wai ʻo ia hoʻi ka ʻokoʻa o ke kiʻekiʻe ma waena o kahi i hele mai ai ka wai a hoʻohana ʻia kahi e hina ai. ʻO ka ikaika e hāʻule ai i ke aloha no ka wikiwiki o ka umekaumaha i hoʻohuli ʻia i ka ikehu kinetic.

E nānā pū: Nā laʻana o ka ikehu i ke ola o kēlā me kēia lā

Nā pōmaikaʻi o ka hydropower

• He ikehu hou ia: I nā huaʻōlelo ʻē aʻe, ʻaʻole e pau ma muli o kāna hoʻohana ʻana, mahalo i ka pōʻai wai. ʻOiai inā he nui ka nui o ka wai e puka mai i waho o kahi waihona wai a hele ma waena o ke kahua uila uila, e hoʻi kēlā wai i ka waihona wai ma muli o ka pōʻai o ka wai, e hoʻolei ka wai a hāʻule i ke ʻano o ka ua.
• Hana kiʻekiʻe: ʻAʻole like me nā ikehu hou hou (e like me ka ikehu lā), pono kahi liʻiliʻi e loaʻa ai ka nui o ka ikehu.
• ʻAʻole hana i nā hoʻokuʻu kino: E like me nā mea i hana ʻia e nā kumuwaiwai ʻē aʻe e like me wahie kākāhiko.
• Kūʻai: Kūʻokoʻa kāna hana i nā kumukūʻai aila. ʻOiai ʻo ke kūkulu ʻia ʻana o kahi mea kanu hydroelectric hiki ke lilo i kumu kūʻai nui, hiki ke ola i kona ola pono ma mua o 100 mau makahiki.

Nā maikaʻi ʻole o ka hydropower

• ʻOiai aia kekahi mauʻano o ka ikehu neea e pili ʻole i ke kaiapuni, ʻo ka hapa nui o nā mea kanu hydroelectric, nā waihona wai, ʻo ia hoʻi, ke kahe ʻana o nā wahi nui o ka ʻāina a puni kahi muliwai ma mua. He hopena koʻikoʻi koʻikoʻi kēia.
• Hoʻololi hou ʻia ke kaiaolaola i lalo no ka mea ʻaʻohe sediment o ka wai e puka mai nā wai wai, a he kumu ia e holo koke ai ka ʻaʻai o nā muliwai. Hoʻohui ʻia, hoʻololi hou ʻia ke kahe o ka muliwai i kahi manawa pōkole.

Nā laʻana o ka mana uila

NA HUNAHUNA HYDROELECTRIC

Hoʻololi lākou i ka ikehu i ka wai i ka ikehu uila. Hoʻohana lākou i ka ikehu kūpono o kahi kino nui o ka wai (ka waihona a i ʻole loko iʻa hana) ma muli o kona kaulike ʻole ʻia me kahi moe o ka muliwai. Ua heleleʻi ʻia ka wai ma loko o ka pulapula, kahi e hoʻohuli ʻia ai kona ikehu i loko o ka ikehu kinetic (neʻe) a hoʻolilo ka pōpō iā ia i ka ikehu uila.

Kūkulu ʻia ka mea kanu hydroelectric mua ma 1879 ma Niagara Falls. I kēia manawa, ʻo kēia ka ʻano ʻemi o ka ikehu, ma muli o ka mālama haʻahaʻa e koi ʻia e nā pono hana a me ka nui o ka ikehu i loaʻa i kēlā me kēia lā.

WAIKUAHI

Hoʻohana lākou i ka ikehu kinetic o kahi kahawai. Kapa ʻia ia he wili no ka mea i kāna hoʻohana mua hoʻohana ʻia ia e wili hua. Holo ka wai i nā lau o kahi huila i hoʻihoʻi ʻia i loko o ka papa wai. Ma o ke ʻano o nā kapa, neʻe ka neʻe o ka huila i kahi mau pōhaku pōʻai i kapa ʻia nā wili wili e kaomi i nā palaoa, e hoʻolilo iā lākou i palaoa.

I kēia manawa, hiki ke hoʻohana ʻia nā huila wai e loaʻa ai ka uila ma o a mea hoʻohuli hoʻololi, like me ka hana o nā turbine o nā mea kanu mana hydroelectric.

Eia naʻe, ʻoi aku ka haʻahaʻa o ka ikehu i loaʻa mai ka neʻe wikiwiki ʻana o ka wai ma muli o ka ʻoi aku ka haʻahaʻa o ke kahe maoli o nā kahawai ma mua o ka mea i hoʻohana ʻia i nā mea kanu hydroelectric. Ua kūkulu ʻia nā huila wai mua ma Helene, i ke kenekulia 3 BC.

ʻO ENERGY MARINA

He ala kikoʻī ia o ka hoʻohana ʻana i ka ikehu o ka wai. Hoʻokaʻawale ʻia i:

• Ka ikehu mai nā au kai: ʻO ke kai kai nā neʻe o ka wai kai. Hana ʻia lākou e nā kumu he nui, e like me ka pōʻai ʻana o ka Honua a me nā makani. Hoʻohana ʻia nā Rotors e hoʻohana i ka ikehu kinetic o nā kahe.
• Ikehu Osmotic: He paʻakai ka wai kai, ʻo ia hoʻi, hoʻonui ʻia o hele aku ʻoe. ʻO nā muliwai, ma ka ʻaoʻao ʻē aʻe, ʻaʻohe paʻakai. ʻO ka ʻokoʻa o ka paʻakai paʻakai ma waena o nā kahawai a me nā kai e hoʻopaneʻe i ka osmosis pressure, ke hoʻokaʻawale ʻia nā ʻano ʻelua e ka membrane. Hiki ke hoʻohana ʻia ka ʻokoʻa koina ma nā ʻaoʻao ʻelua o ka membrane i ka turbine.
• Ikehu wela mai ke kai (tidal nalu): ʻO ka ʻokoʻa o ka mahana ma waena o ka wai kai ʻoi aku ka hohonu (anuanu) a me ka pāpaʻu (hoʻomehana) e ʻoniʻoni i kahi mea hoʻomehana e hana i ka uila.

Nā ʻano ikehu ʻē aʻe