ΒΕΝΖΙΝΗ ΚΑΙ ΟΚΤΑΝΙΑ
Δημοσιεύτηκε: Πέμ Ιαν 27, 2005 11:57 am
Kathws egine syzhthsh peri benzinhs katharhs
kai oktaniwn na poyme mia en syntomia gia ta
oktania ti einai:
H bezninh proerxetai apo to petrelaio (swpa re
megale!!!
ti mas eipes twra!!!!! 
)
Gia na paroyme thn benzinh diilizoyme dhladh
apostazoyme to petrelaio (fractional distillation)
kai se sygkekrimenes thermokrasies brazoyn
(eksatmizontai) diaforetika merh.
H benzinh poy pairnoyme me ayth th
methodo ths apostakshs (straight-run) einai
250ml peripoy gia kathe litro petrelaioy.
Ayth h benzinh einai 70 oktaniwn. Apo ekei kai
pera alles methodoi (isomerismos klp)
xrhsimopoioyntai gia na aykshthoyn ta octania
ths benzinhs.
Paliotera gia peraiterw aykshsh twn octaniwn
dhladh meiwsh twn xtyphmatwn (pyrakia)
xrhsimopoioyntan enwseis molybdoy (lead) poy
omws afhnan shmantikoys rypoys kai etsi
phgame sthn amolybdh benzinh (unleaded).
Twra o deikths twn oktaniwn mas deixnei ton
bathmo antistashs ths benzinhs sto na xtypaei
pyrakia (knocking):
H kathe benzinh sygkrinetai me thn kaysh toy
isooctane poy orizoyme aythn ws oktania 100
kai thn kaysh toy heptane poy thn orizoyme ws
oktania 0.
Etsi mia benzinh 70 oktaniwn shmainei oti kaiei
san ena meigma 70% isooctane kai 30% heptane,
kok....
Poly shmantiko epeishs einai pia endeiksh
oktaniwn koitame!!!
Yparxoyn ta oktania RON kai oktania MON:
RON= Research Octane Number -> Oktania toy
ergasthriakoy kinhthra stis 600rpm
MON= Motor Octane Number -> Oktania toy
ergasthriakoy kinhthra stis 900rpm
H swsth metrhsh oktaniwn einai to average twn 2:
(RON+MON)/2 px (96+90)/2 = 93 octania
Kai h diafora mporei na einai shmantikh..[/b]
kai oktaniwn na poyme mia en syntomia gia ta
oktania ti einai:
H bezninh proerxetai apo to petrelaio (swpa re
megale!!!
ti mas eipes twra!!!!! )Gia na paroyme thn benzinh diilizoyme dhladh
apostazoyme to petrelaio (fractional distillation)
kai se sygkekrimenes thermokrasies brazoyn
(eksatmizontai) diaforetika merh.
H benzinh poy pairnoyme me ayth th
methodo ths apostakshs (straight-run) einai
250ml peripoy gia kathe litro petrelaioy.
Ayth h benzinh einai 70 oktaniwn. Apo ekei kai
pera alles methodoi (isomerismos klp)
xrhsimopoioyntai gia na aykshthoyn ta octania
ths benzinhs.
Paliotera gia peraiterw aykshsh twn octaniwn
dhladh meiwsh twn xtyphmatwn (pyrakia)
xrhsimopoioyntan enwseis molybdoy (lead) poy
omws afhnan shmantikoys rypoys kai etsi
phgame sthn amolybdh benzinh (unleaded).
Twra o deikths twn oktaniwn mas deixnei ton
bathmo antistashs ths benzinhs sto na xtypaei
pyrakia (knocking):
H kathe benzinh sygkrinetai me thn kaysh toy
isooctane poy orizoyme aythn ws oktania 100
kai thn kaysh toy heptane poy thn orizoyme ws
oktania 0.
Etsi mia benzinh 70 oktaniwn shmainei oti kaiei
san ena meigma 70% isooctane kai 30% heptane,
kok....
Poly shmantiko epeishs einai pia endeiksh
oktaniwn koitame!!!
Yparxoyn ta oktania RON kai oktania MON:
RON= Research Octane Number -> Oktania toy
ergasthriakoy kinhthra stis 600rpm
MON= Motor Octane Number -> Oktania toy
ergasthriakoy kinhthra stis 900rpm
H swsth metrhsh oktaniwn einai to average twn 2:
(RON+MON)/2 px (96+90)/2 = 93 octania
Kai h diafora mporei na einai shmantikh..[/b]