Researchers at the National University of Singapore (NUS) have developed a water-based air-conditioning system designed to cool air to as low as 18°C (64°F) without compressors and chemical refrigerants. According to NUS, the system consumes about 40% less electricity than conventional compressor-based air-conditioners. The system also generates drinking water — an estimated 12 L to 15 L (3 gallons to 4 gallons) per day — while it cools ambient air.
(Source: The HVAC&R Industry, January 11, 2018)
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