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The Dehumidification Dilemma- Unlocking Efficiency in Vapor Compression Cooling

Published in The Magazine of HVAC&R Technology and Applications ASHRAE.ORG, Sept2026 

The article examines limitations in conventional vapor-compression room air conditioners, particularly their inefficient dehumidification in warm-humid climates. Field and laboratory studies in India demonstrate that super-efficient AC prototypes can reduce overcooling, improve humidity control, lower energy consumption and peak demand, and maintain thermal comfort, highlighting the need for improved standards and controls.

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Supported by:

Ministry of New and Renewable Energy Govt. of India, Gujarat Energy Development Agency, U.S. Agency for International Development iNDEXTb (Industrial Extension Bureau) Govt. of Gujarat, Shakti Sustainable Energy Foundation, New Delhi