The main goal of the project will be to perform a field assessment to characterize the efficiency benefits of the 75F DAB solution. Target customer should be small commercial (office and/or restaurant) in a climate zone representative of median conditions within SCE territory. Features this...

DX HVAC units are very often used in standalone retail, education, restaurant, and small to medium size office buildings. Among other reasons, small DX HVAC units have this market dominance in small and medium commercial buildings because they require little site-specific design, can be dropped...

The objective of this assessment was to conduct a field test to evaluate the performance of a sub-wet bulb evaporative chiller (SWEC) and to characterize the performance over the range of operating conditions experienced. The cooling capacity, power draw, system efficiency, total energy...

This study was a continuation of the Central Valley Research Homes (CVRH) project which began in 2012. The CVRH project converted four existing single family buildings in Stockton, California into unoccupied laboratory houses for the purpose of evaluating energy savings associated with improvements...

Air conditioning loads drive peak demand and contribute to overall electric power consumption in California. In the summer, cooling loads are highest in the middle of the day when air conditioners are the least efficient. Rejecting waste heat from an air conditioner to a swimming pool rather than...

The objective of the PG&E Code Readiness Program’s retrofit DOAS, VRF and Networked Lighting Controls Demonstration at the UC Davis Facilities Management, Energy Conservation Office was to develop cost, performance, and occupant satisfaction data from a field demonstration site for a...

Laboratory test a combination pre-cooler and fan/compressor speed controller provided by a major manufacturer installed with WCEC control algorithms. Use laboratory-test data to refine algorithms and optimize controls as needed. Field test the Roof Top Unit optimization package using one RTU at a...

Run various simulations using a residential building model to determine water flow rates (from a fluid cooler) and air flow rates (from a residential air hander) required to meet cooling demand for single family residential home in climate zones in SCE territory. Design a condenser replacement...

Variable refrigerant flow (VRF) systems are well suited for automated demand response (ADR) because of their high efficiency, inherently flexible design, and more sophisticated controls available from the factory, relative to traditional air conditioners. Although VRF has been used successfully for...

Project SummaryIn this study, we demonstrated a fast DR system architecture for DR resources participation in ancillary services using the OpenADR 2.0b. One objective was to measure if response time would be 4 sec or less, with response time defined as time to send signal, get response, and...