Two-Phase Thermosyphon, Sky Cooling, an Phase Change to Reduce Electricity Usage for Residential and Commercial Refrigerators

Low-cost solution to decreasing energy consumption and increasing the efficiency of residential refrigerators Background: Current energy conservation devices for refrigeration that exploit lower external temperatures place heat exchangers outside and pump a coolant through the system, using fans and electrical pumps. This is energetically expensive, requires asignificant temperature difference, has a high carbon footprint and can fail. Technology Overview: Dr. Jon Longtin, Associate Professor at Stony Brook University invented a two-phase Thermosyphon technology which passively removes heat from refrigerators and discharges it to cooler exterior environments. Unlike existing technology, Thermosyphonsrequire no additional energy input, are inexpensive to manufacture, and can be integrated into existing energy-efficient refrigeration units, further decreasing annual energy consumption. A prototype was retrofitted to an existing residential refrigerator and cooler exterior temperatures were simulated using a chiller. Thermosyphon maintained the refrigerated space at the 37°F required. Advantages: Require no additional energy input, are inexpensive to manufacture, and can be integrated into existing energy-efficient refrigeration units Applications: Refrigeration Intellectual Property Summary: Utility Patent Pending Stage of Development: Prototype developed and available for testing. Licensing Potential: We seek to develop and commercialize by an exclusive or non-exclusive license agreement and/or sponsored research with a company active in the area. Licensing Status: Available for License Additional Information: Thermosyphon, Refrigerator, Energy Savings, Heat Transfer https://stonybrook.technologypublisher.com/files/sites/electronics-and-electronic-components1.jpg , https://stonybrook.technologypublisher.com/files/sites/energy-conversation1.jpg , https://stonybrook.technologypublisher.com/files/sites/enviroment-11.jpg
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