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Project Info COMPLETE Project Title

Evaporative Retrofit Components for Roof Top Packaged Air-conditioning Units

Project Number ET12PGE3181 Organization PG&E End-use HVAC Sector Commercial Project Year(s) 2012 - 2012
In this study, three emerging evaporative cooling technologies were evaluated using the field test results obtained from six test sites. They are: 1) Outdoor Air Supply (OAS) evaporative pre-cooling; 2) condenser air evaporative pre-cooling; and 3) integrated systems implementing both 1 and 2. Savings are achieved either by reducing the cooling load on the RTU compressor(s) because supply air is pre-cooled or by increasing the vapor compression cycle efficiency because condenser air is cooled by direct evaporation.
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The ETCC is funded in part by ratepayer dollars and the California IOU Emerging Technologies Program, the IOU Codes & Standards Planning & Coordination Subprograms, and the Demand Response Emerging Technologies (DRET) Collaborative programs under the auspices of the California Public Utilities Commission. The municipal portion of this program is funded and administered by Sacramento Municipal Utility District and Los Angeles Department of Water and Power.