With an increasing focus on use of refrigerants with a low GWP (Global Warming Potential), one such refrigerant muscling its way back onto the scene is R-718, better known to most by its chemical formula, H2O. This presentation focuses on two distinct uses of evaporative cooling technologies. The first case investigates DEC for a commercial office building. The second case investigates Indirect Evaporative Cooling for a laboratory building with stringent humidity control requirements. The results indicated combined chiller and fan energy savings greater than 60%. The IEC improved overall energy and water efficiency while providing significant first cost savings.
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