Ummangaliso woBunjineli wombhobho onejakethi ye-vacuum

Umbhobho ogqunywe nge-vacuum(VIP), eyaziwa ngokuba yi-vacuum jacketed pipe (VJP), isebenzisa i-annulus ene-vacuum ephezulu (10⁻⁶ Torr) phakathi kweengqimba zentsimbi engagqwaliyo ukuze kufezekiswe ukudluliselwa kobushushu okuphantse kube yi-zero. Kwiziseko zophuhliso ze-LNG, ezi nkqubo zinciphisa amazinga okubila kwemihla ngemihla ukuya ngaphantsi kwe-0.08%, xa kuthelekiswa ne-0.15% kwiipayipi eziqhelekileyo ezifakwe i-foam insulated. Umzekelo, iprojekthi ye-Chevron's Gorgon LNG e-Australia isebenzisa ii-18 km zeepayipi ezine-vacuum jacketed ukugcina amaqondo obushushu angama-162°C kulo lonke isikhululo sayo sokuthumela ngaphandle elunxwemeni, inciphisa ilahleko yamandla yonyaka nge-$6.2 yezigidi.

Imingeni yeArctic: Abantu ababalulekileyo kwiindawo ezingaqhelekanga

KwiSiqingatha saseYamal saseSiberia, apho amaqondo obushushu asebusika ehla aye kuthi ga kwi -50°C,I-VIPIinethiwekhi ezine-MLI engama-40 (i-multilayer insulation) ziqinisekisa ukuba i-LNG ihlala ikwimo yolwelo ngexesha lokuthunyelwa kwe-2,000 km. Ingxelo kaRosneft ka-2023 igxininisa ukuba imibhobho ye-cryogenic efakwe kwi-vacuum inciphise ilahleko zokufuma nge-53%, isindisa iitoni ezili-120,000 ze-LNG minyaka le—okulinganayo nokunika amandla amakhaya angama-450,000 aseYurophu.

Izinto Ezintsha Zexesha Elizayo: Ukuguquguquka Kuhlangabezana Nokuzinza

Uyilo oluvelayo lwe-hybrid luyadibanaiipayipi ezifakwe i-vacuum cleanerukuze kuqhagamshelwe iimodyuli. Isixhobo seShell's Prelude FLNG sivavanywe kutshanjeiipayipi eziguquguqukayo zejakethi ye-vacuum, ifikelela kwisantya sokulayisha esikhawulezayo se-22% ngelixa inyamezela uxinzelelo lwe-15 MPa. Ukongeza, iiprototypes ze-MLI eziphuculwe yigraphene zibonisa amandla okunciphisa ngakumbi ukuhanjiswa kobushushu nge-30%, zihambelana neenjongo zokunciphisa ukukhutshwa kwe-methane ze-EU ngo-2030.