Davis Energy Group

Publications

(April 17, 2015)
pge_et_walls_report_final_121814.pdf download View | Download
Summary: (December 2014) This ARBI-led project involved working with builders within Pacific Gas and Electric territory to implement advanced wall systems working with house plans currently being built. Builders were provided incentives and design support in exchange for providing site access for construction observation, cost information, and builder survey feedback. BEopt simulations were completed for double […]
Categories: Codes and Standards, Energy Efficiency, HVAC Systems, Products
(April 2, 2015)
et13pge1062_ducts_in_conditioned_space_finalreport_032315.pdf download View | Download
Summary: Locating ducts in conditioned space is widely recognized as a fundamental component of a high performance house. Improvements in California’s Title 24 Standards over the past fifteen years have significantly improved thermal envelope performance, reducing the loads the HVAC system must satisfy. Although duct leakage has been addressed over that period of time, the conductive […]
Categories: Codes and Standards, Energy Efficiency
(February 12, 2015)
measure_guide_air_cond_diagnostics.pdf download View | Download
Summary: (March 2013) This measure guideline attempts to bridge the gap between potential and realized whole house energy savings by developing field guidelines for HVAC diagnosis, repair, and equipment replacement. The intent of this document is to provide easy-to-implement, cost-effective, and reliable methods for home performance contractors and technicians to follow for the diagnosis and correction […]
Categories: Energy Efficiency, HVAC Systems, Retrofit Programs
(February 12, 2015)
retrofit_delivery_packages.pdf%20 download View | Download
Summary: (July 2013) Residential energy retrofit activities are a critical component of efforts to increase energy efficiency in the U.S. building stock; however, a number of barriers must be overcome to achieve high retrofit volumes in the current market. The U.S. Department of Energy Building America research team, Alliance for Residential Building Innovation (ARBI), evaluated opportunities to […]
Categories: Retrofit Programs
(February 12, 2015)
hot_water_distribution_model.pdf download View | Download
Summary: (July 2013) Characterizing the performance of hot water distribution systems is a critical step in developing best practice guidelines for the design and installation of high performance domestic hot water systems. Historically, building energy simulation models have simplified distribution system algorithms to accommodate the longer time steps used in most building performance models. The advent […]
Categories: Energy Efficiency, Water Heating
(February 11, 2015)
airtowater_heat_pumps.pdf download View | Download
Summary: (December 2013) As homes are built better, there is an increasing need for strategies that are particularly well suited for high performance, low-load homes. Due to their efficiency advantages, AWHP systems are particularly well suited for low-load homes. This research evaluates air-source AWHPs applied to radiant floor and mixed-mode (MM) distribution systems. Two monitoring projects […]
Categories: Energy Efficiency, HVAC Systems, Water Heating
(February 11, 2015)
hot_dry_wholehouse_retrofit.pdf%20 download View | Download
Summary: (June 2014) The Stockton house retrofit is a two-story Tudor style single-family home located in Stockton, California. Although classified as a hot-dry climate region, Stockton generally has relatively mild summers due to its proximity to the San Joaquin Delta that brings in cool night-time breezes from the San Francisco Bay Area. The homeowners completed a […]
Categories: Energy Efficiency, HVAC Systems, Retrofit Programs, Water Heating, Whole Building
(February 11, 2015)
west_village_apartment_eval.pdf%20%20 download View | Download
Summary: (June 2014) Building America team Alliance for Residential Building Innovation (ARBI) worked with the University of California, Davis and the developer partner West Village Community Partnership (WVCP) to evaluate performance on 192 student apartments completed in September, 2011 as part of Phase I of the multi-purpose West Village project. West Village is the largest planned […]
Categories: ZNE
(February 11, 2015)
evaluating_domestic_hot_water.pdf download View | Download
Summary: (September 2014) While water heater performance is well characterized, DHW distribution system impacts on energy loss and water waste have only recently been studied in detail. A developing body of work is forming that collects data on domestic hot water consumption, water use behaviors, and energy efficiency of various distribution systems. Transient System Simulation Tool […]
Categories: Energy Efficiency, Water Heating
(February 11, 2015)
sunnyvale-marine-climate-retrofit.pdf download View | Download
Summary: (November 2014) The Alliance for Residential Building Innovation (ARBI) collaborated with Allen Gilliland of One Sky Homes on a marine climate retrofit project designed to meet both Passive House (PH) and Building America program standards. The team evaluated the pre- and post-retrofit energy consumption of a marine climate retrofit, compared actual energy use to original […]
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