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

Abstract

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.

Inventors:

Moghaddam, Saeed; Chugh, Devesh; Bigham, Sajjad

Issue Date:

Tue Feb 04 00:00:00 EST 2020

Research Org.:

Univ. of Florida, Gainesville, FL (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1632520

Patent Number(s):

10551094

Application Number:

15/196,383

Assignee:

University of Florida Research Foundation, Inc. (Gainesville, FL)

Patent Classifications (CPCs):

F - MECHANICAL ENGINEERING F25 - REFRIGERATION OR COOLING F25B - REFRIGERATION MACHINES, PLANTS OR SYSTEMS

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02A - TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE

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F - MECHANICAL ENGINEERING F25 - REFRIGERATION OR COOLING F25B - REFRIGERATION MACHINES, PLANTS OR SYSTEMS

F25B15/06 - the refrigerant being water vapour evaporated from a salt solution, e.g. lithium bromide {
F25B17/02 - the absorbent or adsorbent being a liquid, e.g. brine
F25B33/00 - Boilers
F25B35/02 - using a liquid as sorbent, e.g. brine
F25B37/00 - Absorbers

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02A - TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE

Y02A30/27 - Relating to heating, ventilation or air conditioning [HVAC] technologies

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS

Y02B30/62 - Absorption based systems

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DOE Contract Number:  

AR0000133

Resource Type:

Patent

Resource Relation:

Patent File Date: 06/29/2016

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE; 42 ENGINEERING