Project SummaryEvaporative cooling building technologies take advantage of the latent heat of vaporization for water to provide comfort cooling. Indirect evaporative cooling technologies achieve this without adding water vapor to the zone supply air. The technology studied here provides condenser...

Project SummaryTraditional, single speed space conditioning equipment operates in one of two states: either on or off. When single speed equipment is operating, it provides 100% heating or cooling output at a fixed efficiency based on the ambient conditions. In recent years, manufacturers...

Project SummaryThis 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...

Project SummaryVariable capacity heat pumps (VCHPs) have the ability to deliver capacity below and above their nominal rated capacity by changing the speed of the compressor and modulating ancillary components like fans and expansion valves. This flexibility allows for similar component sizes...

Project SummaryThe goals of the project were: 1) to demonstrate the impact of precise light distribution of LEDs on energy efficiency and lighting quality 2) improve the lighting for broadcasting; 3) complete ballpark lighting control system to improve energy efficiency through control and allow...

Project SummaryCompared to all commercial buildings types, food service has the highest energy intensity (energy consumed per square footage), and restaurants consume three times more energy per square foot compared to the average commercial building. Water heating and cooling...

This project will assess the performance of different energy efficient technologies such as DC/solid state lighting, high efficiency HVAC, upgraded insulation, and controls for portable classrooms, a market that is currently untapped. An existing classroom will be retrofitted with all EE...

Project SummaryThis project examines the site net energy consumption of a sample of units in the West Village community at the University of California Davis (UC Davis). The three primary goals are as follows:Study energy consumption and production in order to determine if this West Village sample...

Solar Jack, an energy management system for rod beam pumps, is comprised of three components: a VFD, a regnerative component and a solar array.  To assess the energy savings potential of Solar Jack, it was installed on three wells at three different customer...

This project will field test recently developed tools and associated workflows to determine the viability and efficacy of rapid building physics based building energy models for use in energy efficiency measure identification and energy use...