Most common injection liquids
Here's the most common injection liquids, I can add more if folks want others included.
NOTE === Corrected numbers, the orignal post included heat energy required to heat the liquid to its boiling point.
Also heats of vaporization are not a single universally recognized value, they change with temperature so there are small differences between sources. Be especially careful to check the conditions the charts refer to.
At normal operational temperatures applicable to WI.
Water -- Oxygen content 0% (ignoring dissolved oxygen) Latent heat of Vaporization 2259.197 KJ/kg . K = 539.6 BTU/lb . F
Ammonia -- Oxygen content 0% (causes pre-ignition not a desirable injectant) Latent heat of Vaporization 2466 KJ/kg . K = 589 BTU/lb . F
The major differences in the alcohols has to do with their contained oxygen and the latent heats of evaporation.
Methanol -- Oxygen content 49.9% by wt, latent heat of vaporization 1099.45 KJ/Kg . K = 262.6 BTU/lb . F
Ethanol ----- Oxygen content 34.7% by wt, latent heat of vaporization 854.62 KJ/kg . K = 204.1 BTU/lb . F
Isopropyl --C3H8O--- Oxygen content 26.66% by wt, latent heat of vaporization 666.7 KJ/kg . K = 159.24 BTU/lb . F
Gasoline -- About 586-628 KJ/kg . K ---- 140 -150 BTU/lb . F depending on fuel blend
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