With regards to evaporative cooled DCs (either primarily cooled that way or assisted some of the time): Imagine an air conditioner that instead of requiring ene

With regards to evaporative cooled DCs (either primarily cooled that way or assisted some of the time): Imagine an air conditioner that instead of requiring energy to drive the compressor to make the phase change work, all the phase change was provided by taking in liquid water and evaporating it off as vapor, taking the latent heat of vaporization (2257 kJ/kg or 970 BTU/lb) with it.