Refrigerators

Cool sounds

Researchers at Penn State have developed a small 'thermoacoustic refrigerator' that uses sound energy to generate cooling, potentially replacing chemical refrigerants. The device operates near resonance frequencies and achieves efficiencies as high as 89% without lubricants or sliding seals.

ThermoChemistry on a chip

Scientists at RTI in North Carolina have developed a high-efficiency thermocouple device that can make something hotter or colder over 20,000 times faster than current devices. This innovation has the potential to convert heat into electrical energy more efficiently and could lead to affordable plug-in modules for widespread use.

Creality K1 Max 3D Printer

Creality K1 Max 3D Printer rapidly prototypes brackets, adapters, and fixtures for instruments and classroom demonstrations at large build volume.

As people’s taste for exotic foods increases, so too does health risk

Researchers found that Shigella bacteria can survive for up to six days in refrigerated conditions and rapidly multiply at room temperature. Properly storing fruits and vegetables and thoroughly washing them are crucial to removing pathogens like Shigella from produce.

Refrigeration In China: energy efficiency with global impact

A five-year program aimed at reducing greenhouse gas emissions from China by 100 million tons, improving energy efficiency in the country's largest refrigerator industry. The project will also reduce air pollutants and help the government of China achieve its goal of using energy more efficiently.