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Oak Ridge National Laboratory researchers developed a device called a piezoelectric-driven magnetic actuator, or PEDMA, that can be inserted into the header of a microchannel heat exchanger to keep refrigerants flowing evenly and the HVAC unit running efficiently. Credit: ORNL, U.S. Dept. of Energy

Oak Ridge National Laboratory researchers demonstrated that microchannel heat exchangers in heating, ventilation and air conditioning units can keep refrigerants evenly and continually distributed by inserting a device called a piezoelectric-driven

Caption: ORNL researchers demonstrated a system that can detect propane leaks within seconds and notify emergency services immediately, well before flames ignite. Credit: ORNL, U.S. Dept. of Energy

Oak Ridge National Laboratory researchers demonstrated that an electrochemical sensor paired with a transmitter not only detects propane leaks within seconds, but it can also send a signal to alert emergency services.

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Keeping food fresh is no easy feat. Trials of transporting ice over long distances and the hazards of systems that rely on toxic gases riddle the pages of refrigeration history. And although cooling science has come a long way in the past two centuries, modern refrigeration has an environmental cost...
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Not much has changed in refrigeration technology in the past 100 years, until now. Researchers with Oak Ridge National Laboratory’s Building Technologies Program have partnered with General Electric (GE) Appliances through a cooperative research and development agreement (CRADA) to revolutionize home refrigerators using magnetocaloric cooling.
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KNOXVILLE— Philip Enquist, partner in charge of urban design and planning and leader of the City Design Practice at Skidmore, Owings and Merrill, has been named the 16th University of Tennessee-Oak Ridge National Laboratory Governor's Chair. Skidmore, Owings and Merrill is one of the world's leading...