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ORNL researchers found that a polyelectrolyte additive can improve the stability and performance of a salt hydrate PCM, enhancing the potential for use in heat pumps. Credit: ORNL, U.S. Dept. of Energy

ORNL researchers demonstrated that an additive made from polymers and electrolytes improves the thermal performance and stability of salt hydrate phase change materials, or PCMs, a finding that could advance their integration into carbon-reducing heat pumps.

As a scientist at Oak Ridge National Laboratory, Tugba Turnaoglu is investigating new thermal energy storage materials and ways to incorporate them into cost-effective and energy-efficient heat pump designs. Credit: Carlos Jones/ORNL, U.S. Dept of Energy

The common sounds in the background of daily life – like a refrigerator’s hum, an air conditioner’s whoosh and a heat pump’s buzz – often go unnoticed. These noises, however, are the heartbeat of a healthy building and integral for comfort and convenience.

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Oak Ridge National Laboratory and Oklahoma's ClimateMaster Inc. have collaborated to develop a ground source heat pump that can reduce a homeowner's electric bill by up to 60 percent. The Trilogy 40 is the first geothermal heat pump certified by the Air Conditioning, Heating and Refrigeration ...

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Consumers and the environment could ultimately be the beneficiaries of a high-efficiency CO2 heat pump water heater concept being researched by General Electric and Oak Ridge National Laboratory. Through a cooperative research and development agreement, GE and ORNL are designing a prototype resident...