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Project Info COMPLETE Project Title

Evaporative Cooler Field Monitoring

Project Number PGE 0709 Organization PG&E End-use HVAC Sector Residential Project Year(s) 2007 - 2008
Description

Project Summary

California's electrical system peak demand is growing rapidly in the residential sector, mainly because of increased air conditioner use due to increased population growth in the central valley. This project compared and evaluated three evaporative cooler technologies that could reduce air conditioning use: conventional, advanced single-stage and advanced two-stage evaporative coolers. Results showed that two-stage advanced evaporative coolers (AEC) deliver air that is 3–4 degrees cooler than a single-stage AEC. Further, this air has less humidity than that of either conventional (“swamp”) or single-stage coolers. Both single- and two-stage AECs use rigid cellulose media, two speed fans, and water management systems to deliver 100% outside air to meet occupant comfort expectations.

Project Report Document
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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.