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Project Info COMPLETE Project Title

Analysis of Evaporative Pre-Cooling for Commercial Air-Conditioning Equipment

Project Number ET14SDG1051 Organization SDG&E End-use HVAC Sector Commercial, Public Project Year(s) 2014 - 2016
Description

Project Summary

This report describes the results from field demonstration of evaporative pre-cooling technology on commercial HVAC (heating, ventilation, and air conditioning) equipment for SDG&E (San Diego Gas & Electric) at a field site in California climate zone 10. This study seeks to evaluate the energy efficiency, water use, performance, and effect on peak demand of this technology in real world operation. Of particular interest is the application of this technology to large air-cooled, rooftop units (RTUs). The results of this study provide the technical basis on which a utility may consider deploying the technology in similar hot, dry climates. The study showed that evaporative pre-cooling technology offers energy savings—particularly during peak hours—with limited water consumption.

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.