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Technology Reports

October 15, 2015
Alternative Refrigerant Evaluation for High-Ambient-Temperature Environments: R-22 and R-410A Alternatives for Mini-Split Air Conditioners

This publication is a final report for Oak Ridge National Laboratory’s High-Ambient-Temperature Evaluation Program for Low Global Warming Potential (Low-GWP) Refrigerants project.

October 9, 2015
Pump and Fan Technology Characterization and R&D Assessment

This report provides the Building Technologies Office (BTO) and the research and development (R&D) community with a technical and market analysis of pumps and fans as they pertain to commercial and residential buildings as well as key conclusions regarding the R&D opportunities that can help achieve BTO’s energy savings goals.

October 2, 2015
Research & Development Opportunities for Joining Technologies in HVAC&R

This report identifies and characterizes R&D opportunities with HVAC&R joining technologies for the Building Technologies Office (BTO) to pursue.

July 27, 2015
Development and Evaluation of a Sandia Cooler-based Refrigerator Condenser

This report describes the first design of a refrigerator condenser using the Sandia Cooler – an air-bearing supported rotating heat-sink impeller.

March 28, 2014
Buildings-to-Grid Technical Opportunities: Introduction and Vision

This report outlines the technical opportunities for building assets to seamlessly integrate and transact with grid operations. It defines the characteristics inherent in transaction-based controls that are necessary to control those building assets and operations using a “transactive” energy approach.

March 18, 2014
This thermoelastic system provides a promising alternative to traditional vapor-compression HVAC technologies. Read the full report below to learn more.
<em>Credit: University of Maryland</em>
Non-Vapor Compression HVAC Technologies Report

While vapor-compression technologies have served heating, ventilation, and air-conditioning (HVAC) needs very effectively, and have been the dominant HVAC technology for close to 100 years, the conventional refrigerants used in vapor-compression equipment contribute to global climate change when released to the atmosphere. The Building Technologies Office is evaluating low-global warming potential (GWP) alternatives to vapor-compression technologies.

February 24, 2014
Radial Sandia Cooler Report

This market assessment and commercialization report characterizes and assesses the market potential of the rotating heat exchanger technology developed at Sandia National Laboratories (SNL), known as the Radial Sandia Cooler. The RSC is a novel, motor-driven, rotating, finned heat exchanger technology. The RSC was evaluated for the residential, commercial, industrial, and transportation markets.

February 24, 2014
Motor Energy Savings Potential Report

This report describes the current state of motor technology and estimates opportunities for energy savings through application of more advanced technologies in a variety of residential and commercial end uses. The objectives of this report were to characterize the state and type of motor technologies used in residential and commercial appliances and equipment and to identify opportunities to reduce the energy consumption of electric motor-driven systems in the residential and commercial sectors through the use of advanced motor technologies.

February 4, 2014
Research & Development Needs for Building-Integrated Solar Technologies

Building Integrated Solar Technologies (BIST) can help achieve the Building Technologies Office goal of reducing energy consumption in residential and commercial buildings by 50% by the year 2030. BIST include technologies for space heating and cooling, water heating, hybrid photovoltaic-thermal systems (PV/T), active solar lighting, and building-integrated photovoltaics (BIPV).

November 26, 2013
Residential Windows and Window Coverings: A Detailed View of the Installed Base and User Behavior

Includes information about the installed base of residential windows and window coverings, and the operation of window coverings by households.

November 25, 2013
Energy Savings from Window Attachments

This study presents energy-modeling results for a large number of window combinations with window attachments in typical residential buildings and in varied climates throughout the United States.

October 1, 2012
Energy Savings Potential and RD&D Opportunities for Residential Building HVAC Systems

This report assesses 135 different heating, ventilation, and air-conditioning (HVAC) technologies for U.S. residential buildings to identify and provide analysis on 19 priority technology options in various stages of development.

September 7, 2011
Comparison of Real World Energy Consumption to Models and DOE Test Procedures

This study investigates the real-world energy performance of appliances and equipment as it compares with models and test procedures.

September 1, 2011
Energy Savings Potential and RD&D Opportunities for Commercial Building HVAC

This Building Technologies Office report assesses heating, ventilation, and air-conditioning (HVAC) technologies for U.S. commercial buildings to identify and provide analysis on 17 priority technology options in various stages of development.

December 1, 2009
Energy Savings Potential and RD&D Opportunities for Commercial Building Appliances

This study characterizes and assesses the appliances used in commercial buildings.

September 1, 2009
Energy Savings Potential and RD&D Opportunities for Commercial Refrigration

This report documents the energy consumption of commercial refrigeration equipment (CRE) in the U.S. and evaluated the energy savings potential of various technologies and energy efficiency measures that could be applied to such equipment.