Injineerinka Yaabka leh ee tuubbada jaakad vacuum ah

Tuubooyin dahaaran oo faaruq ah(VIP), oo sidoo kale loo yaqaano vacuum jacketed pipe (VJP), waxay isticmaashaa vacuum annulus (10⁻⁶ Torr) inta u dhaxaysa lakabyada birta ah ee xoogga leh si loo gaaro kuleyl u dhow eber. Kaabayaasha LNG, nidaamyadani waxay hoos u dhigaan heerarka maalinlaha ah ee karkarinta ilaa 0.08%, marka la barbar dhigo 0.15% tuubooyinka xumbo-dahaaran ee caadiga ah. Tusaale ahaan, mashruuca Chevron's Gorgon LNG ee Australia waxa uu shaqeeyaa 18 km oo tuubo jaakad leh si ay u ilaaliso heerkulka -162°C guud ahaan marinkeeda dhoofinta xeebaha, iyada oo dhimaysa khasaaraha tamarta sanadlaha ah $6.2 milyan.

Caqabadaha Arctic: VIP-yada ku sugan deegaan aad u daran

Jasiiradda Yamal ee Siberiya, halkaasoo heerkulku hoos ugu dhaco -50°C.VIPshabakadaha leh 40-lakab MLI (dahaar badan) waxay xaqiijiyaan in LNG ku sii jiro qaab dareere ah inta lagu jiro shixnadaha 2,000 km. Warbixinta Rosneft ee 2023 waxay iftiimisay in faakuum-ku dahaaran tuubooyinka cryogenic ay hoos u dhigtay khasaaraha uumiga 53%, taas oo badbaadisay 120,000 tan oo LNG sannadkii - oo u dhiganta 450,000 guryaha Yurub ah.

Hal-abuurnimada mustaqbalka: Dabacsanaantu waxay la kulantaa waarta

Naqshado isku-dhafan oo soo baxaya ayaa is dhex galatuubooyinka vacuum-dahaaranisku xirka modular. Shell's Prelude FLNG xarunta dhawaan la tijaabiyay jiingadovacuum-jaakad tuubooyinka dabacsan, gaaritaanka 22% xawli-kordhinta degdega ah iyada oo la adkeynayo cadaadiska 15 MPa. Intaa waxaa dheer, naqshadaha MLI-ga ee graphene-kor loo qaaday waxay muujinayaan suurtagalnimada in lagu sii dhimo dhaqdhaqaaqa kulaylka 30%, oo la jaanqaadaya bartilmaameedyada dhimista qiiqa methane ee EU ee 2030.