NDLI: Effects of salinity and feed temperature on permeate flux of an air gap membrane distillation unit for sea water desalination

Content Provider	IEEE Xplore Digital Library
Author	Eziyi, I. Krothapalli, A. Osorio, J.D. Ordonez, J.C. Vargas, J.V.C.
Copyright Year	2013
Description	Author affiliation: Dept. of Mech. Eng., Florida State Univ., Tallahassee, FL, USA (Eziyi, I.; Krothapalli, A.; Osorio, J.D.; Ordonez, J.C.; Vargas, J.V.C.)
Abstract	This paper reports on an experimental study of the effect of feed water temperature and sea salt concentration on the permeate flux of an air-gap membrane distillation (AGMD) unit developed by Scarab Development AB. In addition, the specific energy consumption is computed for two sea salt concentrations and different feed solution temperatures. The performance of the unit is evaluated by assessing the distillate flux and the thermal energy input. Our strategy involves capturing waste heat to raise the temperature of a saltwater solution (feed water) via a heat exchanger. This feed water of known sea salt concentration is pumped into the hot inlet of the membrane distillation module, while the cold side of the module is maintained at a lower temperature (~20°C) using an air-to-water heat exchanger. We report the system-level energy consumption per unit volume of purified water at different feed water temperatures and the permeate flux production for sea salt concentrations of 0 g/L, 35 g/L and 55g/L for feed water temperatures in the range 20°C to 90°C.
Starting Page	142
Ending Page	145
File Size	339667
Page Count	4
File Format	PDF
ISBN	9781467346306
DOI	10.1109/SusTech.2013.6617311
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-08-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Temperature sensors Energy consumption Water desalination Desalination Water heating Membrane distillation Coolants Feeds Water purification Ocean temperature Air gap membrane distillation
Content Type	Text
Resource Type	Article

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