NDLI: Performance Prediction of Electroosmotic Dehumidification

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	David, W. Gerlach
Copyright Year	2009
Abstract	In electroosmotic dehumidification (EOD), a membrane composed of a desiccant material removes moisture from air to be conditioned. Then the water is pumped through pores in the membrane by the application of a voltage and rejected on the other side. This allows the sensible and latent loads in air conditioning to be handled separately and may lead to improvements in energy efficiency and comfort control. The performance of an air conditioning system using an electroosmotic dehumidification system in series with a conventional vapor compression cycle was modeled. The electroosmotic system handles the entire latent load and the vapor compression system handles the entire sensible cooling load. Performance of the system was compared to a conventional vapor compression air conditioner that handles both the latent and sensible loads with a single evaporator coil. Literature data for Nafion membranes was used in a simple electroosmotic drag model. Modeling indicates the feasibility of electroosmotic dehumidification for separating the control of latent and sensible load in air conditioning systems. The total COP of the system, neglecting fan power, can be 1–2 times higher (depending on airflow rate) than a system using an evaporator for latent and sensible load.
Starting Page	795
Ending Page	800
Page Count	6
File Format	PDF
ISBN	9780791843826
DOI	10.1115/IMECE2009-11929
e-ISBN	9780791838631
Volume Number	Volume 9: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A, B and C
Conference Proceedings	ASME 2009 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2009-11-13
Publisher Place	Lake Buena Vista, Florida, USA
Access Restriction	Subscribed
Subject Keyword	Air conditioning Water Cycles Compression Membranes Cooling Dehumidification Vapors Drag (fluid dynamics) Modeling Stress Air flow Energy efficiency Air conditioners
Content Type	Text
Resource Type	Article

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