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3D microstructures for rapid absorption/desorption in mechanically constrained liquid absorbents

Patent ·
OSTI ID:1632520

An absorber or desorber contains one or more micro-channels that have a 3-D structured heat-exchanging surface and a membrane on the microchannel situated distal to the 3-D structured heat-exchanging surface, where the membrane is permeable to a solvent of a solution employed in the absorber or desorber. The 3-D structured surface promotes mixing of hot and cold solution between the 3-D structured heat-exchanging surface and a vapor-exchanging surface proximal to the membrane. The mixing reduces the differences in concentration and temperature of the bulk solution and the solution at the vapor-exchanging surface to enhance the efficiency and rate of absorption or desorption of the solvent.

Research Organization:
Univ. of Florida, Gainesville, FL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AR0000133
Assignee:
University of Florida Research Foundation, Inc. (Gainesville, FL)
Patent Number(s):
10,551,094
Application Number:
15/196,383
OSTI ID:
1632520
Country of Publication:
United States
Language:
English

References (7)

Parametric study of water vapor absorption into a constrained thin film of lithium bromide solution journal October 2012
Impact of micromixing on performance of a membrane-based absorber journal October 2015
Chaotic Mixer for Microchannels journal January 2002
Direct molecular diffusion and micro-mixing for rapid dewatering of LiBr solution journal March 2014
Nanofibrous membrane-based absorption refrigeration system journal December 2013
Absorption characteristics of lithium bromide (LiBr) solution constrained by superhydrophobic nanofibrous structures journal August 2013
Moving beyond the limits of mass transport in liquid absorbent microfilms through the implementation of surface-induced vortices journal February 2014

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