MemDry: Vapor-Selective Membrane Heat Exchanger for Efficient Passive and Active Drying

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Researchers at Purdue University have developed a vapor-selective heat exchanger cycle capable of both passive and active convective drying processes. Purdue's method reduces energy consumption by 30-40% over conventional approaches by combining vapor-selective membrane-based dehumidification with heat pump technology. Additionally, by removing vapor from the system, this technology can improve heat pump coefficient of performance (COP) by 2x and reduce required drying temperatures by 10-20 deg C. This technology has applications in commercial and residential drying processes to reduce both dry times and energy consumption while using electricity.

Technology Validation: This technology has been validated theoretically using thermodynamic analysis of the proposed method. Results showed a decrease in energy requirements of 30-40%, a reduction in required drying temperature, and improved heat pump COP of 2x.

-Improved efficiency
-Reduced dry times
-30-40% energy reduction
-10-20 deg C lower required drying temperatures

-Commercial drying processes (fabrics, pharmaceuticals, chemicals, food)
-Residential clothes dryers
Dec 16, 2022
Provisional-Gov. Funding
United States
Purdue Office of Technology Commercialization
The Convergence Center
101 Foundry Drive, Suite 2500
West Lafayette, IN 47906

Phone: (765) 588-3475
Fax: (765) 463-3486