Skip to main content
Oak Ridge National Laboratory
Although variable refrigerant flow heat pumps are known to have advantages, higher initial costs and difficulty in quantifying those benefits serve as deterrents to their widespread use. ORNL’s flexible research platform, however, provides a solution that enables researchers to chara...
Oak Ridge National Laboratory

A ground source heat pump installed at rural Cedarville High School in Arkansas through the American Recovery and Reinvestment Act has reduced energy use by 53 percent and carbon dioxide emissions by 52 percent, according to an Oak Ridge National Laboratory report. ORNL researchers X...

Default image of ORNL entry sign
The Department of Energy's Oak Ridge National Laboratory and the Tennessee Valley Authority are testing an electric ratepayer's dream „ a "frostless" heat pump that produces warmer air than conventional air source heat pumps, especially during the defrosting cycle and at lower overall cost. A heat p...