ʻO ke Kauoha Cryogenic

I ka wā e puka mai ai ka hydrogen wai (LH₂) ma ke ʻano he kihi ikehu maʻemaʻe, koi kona kiko paila -253°C i nā ʻōnaehana i hiki ʻole i ka hapa nui o nā mea ke lawelawe. ʻO ia kahipaipu palupalu i hoʻopaʻa ʻia me ka vacuumlilo ka ʻenehana i mea hiki ʻole ke kūkākūkā ʻia. Me ka ʻole o ia mea? E ʻōlelo aku i ka paila weliweli, nā hemahema kūkulu, a me nā moeʻuhane ʻino o ka pono.

ʻAnatomy o ka Hana

Ma kona kumu, hehose ʻaʻahu vacuumua kūkulu ʻia e like me ka thermos ma luna o nā steroids:

Nā paipu kila concentric māhoe (ʻo ka maʻamau he 304/316L papa)

ʻO ka annulus vacuum kiʻekiʻe (<10⁻⁵ mbar) i wehe ʻia mai nā kinoea alakaʻi

30+ mau papa MLI hoʻopili-hoʻomālamalama i hoʻopili ʻia ma waena

Hoʻokō kēia pale pale ʻekolu i ka meanā paipu paʻaʻaʻole hiki: kūlou me ka ʻole o ka haki ʻana i ka wā o nā hoʻopili tanker ʻoiai e mālama ana i ka hoʻoili wela ma lalo o 0.5 W/m·K. No ka hiʻohiʻona - ʻoi aku ka liʻiliʻi o ke kahe wela ma mua o kāu thermos kope.

No ke aha e hāʻule ai nā laina maʻamau me LH₂

Hoʻokomo nā molekala atomika o ka hydrogen i ka hapa nui o nā mea e like me nā ʻuhane ma o nā paia. ʻEha nā hose maʻamau mai:

✓ Ka hoʻopaʻa ʻana i nā mahana cryo

✓ Nā pohō komo (>2% no kēlā me kēia hoʻoili)

✓ Nā mea hana i hoʻopaʻa ʻia i ka hau

Hose ʻaʻahu vacuumkū'ē nā ʻōnaehana i kēia ma o:

Nā sila metala-ma-metala Hermetic (nā mea hoʻopili VCR/VCO)

Paipu ʻōpuʻu kūpaʻa i ka permeation (electropolish 316L SS)