I ka mahana hea e maloʻo ai ke kauwela diesel?
Nā mea
He aha ka waxing, a no ke aha ka hewa no ke kaʻa diesel?
ʻO nā waxes Diesel, loaʻa mau i ka wahie diesel, he hydrocarbons kaulahao lōʻihi e maʻa ana i ka crystallize ma nā haʻahaʻa haʻahaʻa. Hoʻopaʻa kēia mau platelet crystalline i nā kānana i nā kaulahao "wax" maoli. ʻO nā hydrocarbons kaulahao lōʻihi i hui pū ʻia e hoʻonui nui i ka viscosity o ka wahie diesel, he mea ʻino ia no ka ʻenekini a me ka pauma wahie. ʻO ka loaʻa ʻana o ka wai i ka nui o ka nui ke kumu o kekahi pilikia - ka hoʻokumu ʻana o nā kristal hau. Hana ʻia kēia ma ka wahi maloʻo o ka wahie diesel. ʻO ka pilikia, ʻo ia: a) ʻaʻole hoʻoheheʻe ka wai i loko o nā wai wai wai; b) ʻo kēia mau kristal i kekahi mau mahana he mea paʻa ia, ʻokoʻa me ka paraffin, he wai mau.
Ma nā hihia ʻelua, e hoʻomaka hou ka kahe ʻana o ka wahie diesel i ka wā e wela ai ma luna o ka mahana crystallization.
ʻO ka pilikia, e like me ka mea i ʻike ʻia, hiki ke hoʻoholo ʻia ma ka hoʻohui ʻana i kahi nui (mai 7 a 10%) o ka biodiesel i ka wahie diesel. Eia naʻe, ʻo ka mea mua, he pipiʻi ka wahie biodiesel, a ʻo ka lua, he mea mānoanoa kēia i kekahi manawa e hoʻāla ai ka wahie diesel maʻemaʻe i loaʻa ʻole nā mea hoʻohui.
ʻAʻole e like me nā paraffins (i ka wā e haki ai nā kristal o nā molekole i hui ʻia me ka wela kiʻekiʻe), lilo ka hui ʻana o ka wahie diesel me ka biodiesel i ao a ʻaʻole wikiwiki e hoʻi i ka wahie maʻamau.
ʻO ka hoʻokuʻu ʻana i ka turbid, ka mea i hana ʻia i ka wā o ke kaʻina hana waxing, hoʻopaʻa i nā kānana, kahi e hoʻonui nui ai i ka hana o ka pauma wahie. ʻO ka hopena, nalowale nā ʻāpana o nā ʻāpana neʻe a hoʻomaka nā kaʻina hana friction maloʻo. No ka mea he kiʻekiʻe ka mahana a me ke kaomi ʻana, ʻoi aku ka wikiwiki o nā ʻāpana metala exfoliated i ka pauka metala, kahi e coagulates mua a laila sinter. A ua pau ka pama.
No ka hōʻoia ʻana ʻaʻole e hiki mai kēia, pono e hoʻohana i nā mea hoʻohui kūpono i nā hui biodiesel. Eia kekahi, ʻaʻohe wai i loko o ka wahie diesel, kahi e pale ai i nā kānana.
Aia kekahi ʻokoʻa ma waena o "disel hoʻoilo" a me ka "diesel hoʻoilo"?
Aia. I ka hihia mua, ua hui pū ʻia ka wahie diesel me ke kerosene, i ka lua, ua hoʻohui ʻia ka antigel i ka wahie diesel maʻamau. Hāʻawi ka hapa nui o nā hale hoʻokele kinoea i ka diesel hoʻoilo ma mua o ka diesel hoʻoilo no ka mea ʻoi aku ka liʻiliʻi. ʻOi aku ka naʻauao a hāʻawi i nā ʻano ʻelua e ʻae i nā mea kūʻai aku e hoʻoholo no lākou iho. No nā kaʻa hou, ʻoi aku ka maikaʻi o ka wahie diesel hoʻoilo me nā mea hoʻohui kūpono.
A pehea ka biodiesel? Pono kona hele ʻana i ka hoʻololi ʻana i ka ʻenehana lapaʻau wahie, no ka mea, ʻokoʻa nā helu gelation mai kekahi i kekahi. No laila, ʻokoʻa ka hopena o ka biodiesel me nā ʻāpana ʻōnaehana wahie. ʻO ka biodiesel, e like me ka diesel, nā gels i ke anuanu, akā e hilinaʻi ka mahana hoʻokumu gel pololei i ka mea i hana ʻia ai ka biodiesel. E lilo ana ka aila Diesel i gel e like me ka mahana i hoʻomaka ai ka waxing o ka ʻaila a i ʻole ka momona i hoʻohana ʻia no ka hana ʻana i ka wahie.
Wae hau hau o ka wahie diesel kau wela
He mea paʻakikī ke helu pololei i kēia laulā no ka mea nui nā mea hoʻololi i komo i ka pāʻani. Eia naʻe, ʻike ʻia ʻelua mau mea wela nui:
- ʻO ka lae ao ka wā e hoʻomaka ai ka hāʻule ʻana o ka paraffin wax mai ka wahie.
- ʻO ka wahi ninini kahi i loaʻa ai ka gel i loko o ka diesel ʻaʻole e kahe hou. Aia ma lalo iki kēia wahi i ka lae ao o ka wahie.
No ke kauwela ka wahie diesel, ka mua wela e pili ana i ka laulā -4 ... -6ºC, a me ka lua -10 ... -12ºC (e manaʻo mau ana ka mahana o waho o ka ea). ʻOi aku ka pololei, ua hoʻoholo ʻia kēia mau mahana i nā laboratories, kahi e noʻonoʻo ʻia ai nā ʻano kino a me nā mechanical o ka wahie.
