Coolant ye mun ye?

Coolant ye fɛn ye min bɛ boli i ka batiri kɔnɔ ka seliw bali u yɛrɛ la. Pretty simple concept nka mɔgɔ caman bɛ a sɔrɔ cogo jugu la.

EV ni ESS baarakɛcogo la an bɛ kuma glycol-ji ɲagaminen kan min bɛ yaala-yaala nɛnɛmafɛnw walima nɛnɛ siraw fɛ minnu dilannen don ka don pakew jɔcogo la. Ji bɛ funteni ta ka bɔ seliw la, k’a ta ka taa nɛnɛbɔlan walima radiyatɛri la, ka funteni fili, ka segin ka na ka dɔ fara a kan. Loop bɛ to ka baara kɛ fo ni pake bɛ baara la.

ji yɛrɛ .

I bɛ fɛn o fɛn dɔn mobili nɛnɛma ko la, i ka ɲinɛ o kɔ. O prestone green min bɛ bɔ autozone la, o bɛna batiri dɔ tiɲɛ. Fura minnu bɛ kɛ ka fɛnɲɛnamafagalanw kɛlɛ, olu ye ionw ye minnu bɛ kɛ ion ye-U bɛ kuran kɛ. I bɛ o boli 400V pake fɛ, i bɛ dugukolo filiw ɲini.

Batiri nɛnɛma ka kan ka sariya fila dafa, antifreeze basigilen tɛ hami minnu na:

Electrical resistivity above 100 kΩ·cm minimum. Most OEMs spec 150 kΩ·cm or higher. Tesla's spec calls for >200 kΩ·cm kan falen kura.

Iyɔn hakɛ bɛ 25 ppm duguma. Spec dɔw ko 10 ppm. O de kama aw tɛ se ka ji disili kɛ dɔrɔn ka aw yɛrɛ ka-Glycol yɛrɛ ka kan ka kɛ ultra-Pure ye.

BASF Glysantin G40 ani Arteco Havoline XLC ye fila ye i bɛna minnu ye ka caya foro kɔnɔ. Chevron fana bɛ batiri dɔ dilan-Fureau spécifique. Olu bɛ boli dɔrɔmɛ 40-60 ɲɔgɔn na galɔn kelen na ni dɔrɔmɛ 12-15 ye oat coolant basigilen na. A bɛ a kun bɔ.

Mix ratio .

50/50 Etilɛni gilikɔli ka se ji deyonizelen ma, o ye sariya ye. Cɛ dɔw bɛ boli 60/40 nɛnɛ waatiw la. Ka tɛmɛ 60% glycol kan, o bɛ i tɔɔrɔ tiɲɛ na-viscosity bɛ wuli, funteni jiginni bɛ jigin, pɔnpe bɛ baara kɛ kosɛbɛ.

Jate min bɛ kɛ ka nɛnɛ kɛ:

50/50 Aw bɛ ɲagami -37 degɛrɛ lamini na .

60/40 bɛ i sɔrɔ ka se ka -52℃sɔrɔ .

Glycol saniyalen bɛ nɛnɛ degɛrɛ -12 la (ɔwɔ, ji farali bɛ nɛnɛ hakɛ jigin, simi ye kabako ye)

Ameriki Worodugu fanba la 50/50 ka ɲi. N’i ​​bɛ ka pakew bila sen kan Minnesota walima Alberta, i ka kuma i ka thermal engineer fɛ ka taa nafolotigiya la.

Flow rate .

Nin ye yɔrɔ ye n bɛ ɲagami ye yɔrɔ min na kosɛbɛ. Mɔgɔw ​​bɛ se ka pɔnpew bonya kojugu walima ka u bonya dɔgɔya.

Jatebɔ tɛ gɛlɛya. Aw ka kan ka fɛn saba dɔn: pake bɛ funteni hakɛ min sɔrɔ, funteni jiginni min bɛ se ka muɲu kafoda la, ani aw ka nɛnɛmadalan ka funteni kɛrɛnkɛrɛnnen.

Ni 50/50 misali/ji ɲagaminen don, funteni kɛrɛnkɛrɛnnen bɛ se 3,3 kJ/kg·k ma. density (dansi) bɛ kilo 1,07 lamini na.

A fɔ ko i ye 75 kWh pake sɔrɔ ka 2c discharge kɛ. O ye 150 kW bɔli ye. Jaa 5-6% Sumaya sɔrɔ o hakɛ la-A wele ko 8 kW funteni doni. Ni aw b'a fɛ ka Inlet mara-ka se delta ma 4℃:

8000 W ÷ (1,07 kg/L × 3300 J/kg × 4 K) × 60=34 L/min .

O ye jateden lakika ye ka Bɔ poroze lakika dɔ la. A yɛrɛ ka pɔnpe an spec'd jate 40 l/min ka di an ma kunkolo.

EV pakew fanba bɛ boli 8-15 L/min boli doni na. A bɛ wuli ka wuli teliya la chargement teliya la walima ka se ka fanga caman sɔrɔ.

Fɛn min bɛ taa ɲɛ .

A ye dɛsɛ cogo damadɔw ye sanw kɔnɔ.

Fɔɲɔ suguya jugu.Butigi bɛ to ka taa ni antifrize conventionnel ye baara kɛtuma na. Conductivity spikes. BMS bɛ isolation fault ye, pack bɛ da tugu. Ni i ye chance sɔrɔ a bɛ kode fili dɔrɔn. Ni i ma chance sɔrɔ i bɛ kɔnɔna arcing sɔrɔ.

Nɔgɔya.Jiko nafa ka bon. Site kelen min ye baara kɛ, o ye pompi ji kɛ fali fɔlɔ la bawo "a bɛ tɛmɛn deionizer fɛ cogo o cogo." N'a Bɔra u ye deionizer (deionizer) Tɛmɛ. Klori hakɛ tun ye 180 ppm ye. A tun ka kan ka sistɛmu bɛɛ ko ani ka nɛnɛ platiw wuli-$40K baara $200K installation kan.

tiɲɛni waati kɔnɔ.Glycol oxydize. Aw bɛ asidi glikoliki kɛ, o kɔfɛ asidi ɔkisaliki. pH bɛ jigin. Corrosion inhibiteurs bɛ sɔrɔ ka baara kɛ ni u ye. OEMw ko 4- san 5 baarakɛ waati nka n ye coolant go bad ye san 2 kɔnɔ temps high-temps sigidaw la. Aw bɛ sɛgɛsɛgɛli kɛ san o san.

fiɲɛ bɛ sɔrɔ sistɛmu kɔnɔ.Bleeding EV cooling loops ye finicky ye. Fiɲɛbɔlanw bɛ kɛ sababu ye ka yɔrɔ funtenimaw sɔrɔ. Seli min bɛ bugun jukɔrɔ yɛrɛ, o bɛ boli degere 8-10 na ka tɛmɛ a sigiɲɔgɔnw kan. Kɔrɔya teliya, seko bɛ ban, laban na garanti ɲinini.

Kɔrɔbɔli cogoya sɛgɛsɛgɛli .

Aw mago bɛ sumanikɛlan saba la:

pH-Fresh nɛnɛmadalan bɛ boli 7,8 ka se 8,5 ma ka kɛɲɛ ni furakɛlicogo ye. duguma 7.0 kɔrɔ ye ko inhibiteur pake bɛ dɔgɔya. Aw bɛ a Changer.

Resistivity-Portable tres bɛ yen nka u sɔngɔ ka gɛlɛn. Aw bɛ sample dɔ ci laboratuwaari la ni aw tɛ a sɔrɔ. Fɛn o fɛn bɛ 50 kΩ·cm jukɔrɔ, o bɛ ka marginal sɔrɔ.

Glycol concentration-refractometer bɛ baara kɛ. $30 baarakɛminɛn, a bɛ segin 10 kɛ. Aw bɛ a lajɛ ni a bɛ dilan ka bɔ a la walima ni mɔgɔ dɔ bɛ ji tilennen fara a kan.

Fleet dɔw bɛ petroli sɛgɛsɛgɛli kɛcogo porogaramuw kɛ, ka samplew ci Polaris Labs walima Blackstone ma kalo 6 o kalo 6. Overkill for most applications nka a bɛ mankutu sɔrɔ installations belebelew kama.

Directe immersion vs cooling indirect .

Fɛn o fɛn bɛ sanfɛ, o bɛ nɛnɛ indirect ({0}}fluid) boli ka tɛmɛ kanw fɛ, a tɛ maga seliw la abada. O ye 95% ye min bɛ kɛnɛ kan.

Immersion direct (ji-yɔrɔ-ko) tɛ kelen ye. Bugunw bɛ sigi dielektriki ji la. Plate nɛnɛ tɛ, a tɛ thermal interface material, fluid contacts the can directement. Funteni jiginni ka fisa. Gɛlɛya bɛ dɔgɔya cogo dɔw la, ka tɛmɛ tɔw kan.

Fluids fana tɛ kelen ye. 3M Novec ani Solvay Galden ye tɔgɔba ye. Olu ye fɛnɲɛnamafagalanw ye, u ka fɛnɲɛnamafagalanw ka dɔgɔn kosɛbɛ, u tɛ kɛ ni kemikɛli ye. Fana sɔngɔ ka bon kosɛbɛ-$300-400 litiri kelen na furakɛli dɔw kama.

Immersion directe ye ka jira grid marayɔrɔ la ani dɔw ka high{0}}performance mobili baarakɛcogo. A ma kɛ mainstream ye fɔlɔ nka funteni baarakɛcogo ka gɛlɛn ka sɔsɔli kɛ ni.

Spec 1000 .

Aw bɛ se ka min ɲini ni aw bɛ batiri nɛnɛma sɔrɔ, o ɲɛfɔli teliya:

Aw ye MSDS ni Technical Data sɛbɛn sɔrɔ aw ka feerekɛla fɛ. Ni u tɛ se ka resistivity data di, aw bɛ furakɛlikɛla wɛrɛ ɲini.