Man fetur don tunani
A Kudancin Amirka, motoci suna amfani da ethanol tsawon shekaru ba tare da wata matsala ba. Amma baya ga kara dan kadan na wannan sinadari a cikin man fetur din da ba ya da guba, har yanzu bai samu gindin zama a nan ba.
Kuma ko da wannan ƙaramin adadin bai kasance ba tare da cece-kuce ba, tare da ikirarin cewa yana iya lalata injina.
Wannan na iya canzawa, duk da haka, tare da zuwan motocin Saab BioPower da aka tsara musamman don aiki akan ethanol, wanda Saab 9-5 BioPower ke jagoranta.
Ba mu magana game da 10%, amma E85 ko 85% tsarki ethanol, wanda aka hade da 15% unleaded fetur.
Kodayake E85 yana buƙatar wasu canje-canje na fasaha don aiki, Saab ya ce baya buƙatar kowane fasaha na musamman. Motocin BioPower za su yi nasara a kan man fetur da kuma ethanol, amma za a buƙaci wasu gyare-gyare kafin ka fara cika tanki da ethanol saboda yanayin lalacewa.
Waɗannan sun haɗa da ƙari na bawuloli masu ƙarfi da kujerun bawul, da yin amfani da abubuwan da suka dace da ethanol a cikin tsarin mai, gami da tanki, famfo, layi, da masu haɗawa. A sakamakon haka, kuna samun mai mai tsabta tare da mafi kyawun aiki godiya ga ƙimar octane mafi girma. Ciniki-off shine cewa kun ƙara ƙonewa.
Ethanol barasa ne da aka samu ta hanyar distillation daga hatsi, cellulose ko sukari. An yi shi daga sikari a Brazil shekaru da yawa, kuma daga masara a tsakiyar Amurka.
A kasar Sweden, ana samar da shi ne daga ɓangarorin itace da sharar daji, kuma ana gudanar da nazarin yiwuwar yin amfani da shi don ganin ko za a iya samar da shi daga lignocellulose.
A matsayin man fetur, mafi mahimmancin bambanci tsakanin man fetur da ethanol shine cewa ethanol baya ƙara yawan matakan carbon dioxide (CO2).
Wannan shi ne saboda CO2 ana cirewa daga yanayi a lokacin photosynthesis ta amfanin gona da aka shuka don samar da ethanol.
Babban abu, ba shakka, shine ethanol yana sabuntawa, amma mai ba haka bane. A halin yanzu Saab yana ba da nau'ikan BioPower na injinan silinda huɗu masu nauyin 2.0- da 2.3-lita.
Motar gwajin mu wata motar tasha ce mai nauyin lita 2.0 wacce aka rubuta "Saab BioPower" a gefe. Yawanci wannan injin yana ba da 110kW da 240Nm na karfin juyi, amma tare da mafi girman octane E85 104RON, wannan adadi ya kai 132kW da 280Nm.
Wagon, ba shakka, yana da zip ɗin da yawa, amma a lokaci guda, ya yi kama da sauri ta tauna cikakken tanki na E85.
Da kyar muka yi tafiyar kilomita 170 lokacin da tankin mai lita 68 (ba daidaitaccen lita 75 ba) ya zama rabin komai, kuma a kilomita 319 ƙananan hasken mai ya kunna.
A tsawon kilomita 347, kwamfutar da ke cikin jirgin ta bukaci a sake mai da motar. Idan kuna shirin tafiye-tafiye mai nisa wannan na iya zama matsala saboda akwai rabin gidajen mai dozin dozin a New South Wales suna ba da E85. Lokacin da muka cika tankin, kwamfutar da ke cikin jirgi ta nuna yawan man da ake amfani da shi na lita 13.9 a cikin kilomita 100.
Duk da haka, da tanki kawai 58.4 lita E85, wanda, ta lissafin mu, shi ne 16.8 lita da 100 km - game da tsohon m V8.
Babu wata kididdigar da aka yi amfani da man fetur na 9-5 BioPower, amma idan aka kwatanta, mota daya da injin mai mai lita 2.0 yana samar da 10.6 l/100 km.
Tabbas, wannan dole ne a auna shi da farashin E85 ( cents 85.9 a kowace lita idan muka cika) idan aka kwatanta da man fetur maras leda, wanda aka sayar da shi da servo iri ɗaya akan cent 116.9 - 26.5% ƙasa. Koyaya, tunda muna kona 58% ƙarin man fetur, wannan shine ainihin 31.5% a bayan manyan takwas.
A halin da ake ciki, Saab, ya yi iƙirarin cewa yawan man da ake amfani da shi na BioPower kusan ɗaya ne da na samfurin man fetur a cikin saurin tafiya akai-akai. Amma a cakuɗen yanayin tuƙi, yana amfani da kusan kashi 25-30 ƙarin E85. Fitar da iskar Carbon don injin mai ya kai gram 251, kuma babu adadi na ethanol.
